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How to Avoid Roaming Charges in Mauritius (2026)

Mauritius is one of the easiest places to stay connected cheaply — if you skip roaming and use an eSIM. Here is exactly how.

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How to avoid roaming
Millions of visitors arrive in Mauritius every year. AT&T charges each one $10/day to use data. Airalo offers 20GB on my.t for $101.25. A 7-day visit saves $0 per traveler.
June 2026 verified1+ networksFrom $5.06/GB5 providers comparedUpdated June 2026
! Danger
US carriers charge $10/day or $2.05/MB for data roaming in Mauritius. A single week of casual phone use costs $70–200+.
✓ Solution
A travel eSIM from Airalo connects to CHILI's 5G network at $5.06/GB. Same towers, same coverage, no roaming middleman.

How to avoid roaming charges in Mauritius

Verizon TravelPass runs $10/day in Mauritius — identical to AT&T's International Day Pass. T-Mobile includes international data but throttles to 256 Kbps, slow enough that Maps tiles fail to load. All three carriers connect through my.t's towers. None operate their own infrastructure here. The $10/day fee pays for the billing agreement, not the signal quality.

Bypass all three carriers by installing a Mauritius eSIM before departure. Disable data roaming on your home SIM in Settings. A 20GB plan on my.t costs $101.25 for 7 days at full speed. After landing, activate the eSIM as your data line. Same my.t towers, same coverage map, no daily fee.

What AT&T and Verizon charge in Mauritius

Two phones on AT&T International Day Pass in Mauritius: $20/day, $140 over 7 days. Four phones: $40/day, $280 for the week. A family trip on Verizon TravelPass costs the same — $10 per device per day on my.t. Four eSIMs on my.t at $101.25 each: $405 total for 20GB per device. That is $-125 in savings for the family. Each eSIM connects independently to my.t — no shared pool, no per-device daily trigger.

Per-task roaming charges in Mauritius

Roaming vs eSIM cost per activity in Mauritius (AT&T $2.05/MB vs eSIM at $$5.06/GB)
ActivityData UsedRoaming CosteSIM Cost
Send WhatsApp photo3 MB$6.15$0.01
10 min Google Maps5 MB$10.25$0.02
10 min Instagram scrolling50 MB$102.50$0.25
Send email with photo3 MB$6.15$0.01
30 min Spotify45 MB$92.25$0.22
Check Google Translate (10 queries)2 MB$4.10$0.01

Roaming costs by trip length for Mauritius

Four phones on AT&T in Mauritius: $40/day. Over 7 days: $280. Each device bills $10/day independently on my.t — a child's game, a partner's map search, a grandparent's text all trigger separate daily charges. Four eSIMs on my.t cost $405 total for 20GB each. Family savings: $0. Per device, per day: AT&T = $10. eSIM = $14.46. The math scales as badly for families as it does for individuals.

Roaming rate comparison for Mauritius

AT&T International Day Pass charges $10/day in Mauritius. Verizon TravelPass charges $10/day. Both connect through my.t and offer the same coverage map. T-Mobile includes international data on most plans, but throttles speeds to 256 Kbps — slow enough that Google Maps tiles fail to load and ride-hailing apps time out. All three carriers use my.t's towers in Mauritius. None of them operate their own infrastructure here. The $10/day fee pays for the billing agreement between your home carrier and my.t, not for better signal or faster speeds. my.t delivers 25 Mbps to local subscribers and eSIM users alike. A Mauritius eSIM on my.t costs $101.25 for 20GB — the same network, the same towers, at $5.06/GB instead of $10/day.

Why roaming charges happen automatically in Mauritius

Dual-SIM phones in Mauritius carry a specific risk: both SIM lines can receive data connections simultaneously. If your home SIM has data roaming enabled and your eSIM is also active, your phone may route some traffic through the home SIM's roaming connection and some through the eSIM. AT&T charges $10/day for any data through the home SIM, even a single background sync. Set your eSIM as the primary data line in Settings and disable data roaming on your home SIM before leaving your hotel. Verify in Settings that "Cellular Data" shows your eSIM line, not your home carrier. An eSIM on my.t at $101.25 for 20GB handles all data cleanly when configured as the sole data source.

Background data leaks in Mauritius

Location Services on your phone ping my.t's towers every few minutes in Mauritius. Find My, Maps, Weather, and ride-hailing apps all request location data in the background. Each ping transfers 0.5-2 MB. Over a full day, location pings accumulate 10-30 MB of silent cellular data. At $2.05/MB, that is $20-60 per day in charges you never authorized. Disable location services for non-essential apps before landing: Settings > Privacy > Location Services > review each app. Keep Maps and emergency services active, disable everything else. An eSIM on my.t at $8.10 for 1GB routes these pings through flat-rate data instead of AT&T's per-MB billing.

Airport connectivity options for Mauritius

Some airport SIM counters in Mauritius only accept local currency. You land with MUR still to collect from an ATM. The SIM counter wants cash. The ATM has a queue. AT&T charges $10 while you sort out the currency problem. An eSIM processes in your home currency before departure — no foreign currency needed, no ATM stop, no waiting for cash. Plans on my.t start at $8.10 for 1GB, charged to your regular card on home soil. Land with connectivity already active and your wallet untouched.

How to set up your eSIM for Mauritius

! Do this before step 2
Disable data roaming on your home SIM first. If your home SIM is still roaming-enabled when your eSIM activates, your carrier can charge both lines simultaneously. Settings → Cellular → Cellular Data Options → Data Roaming: OFF.
1

Disable data roaming on your home SIM

Go to Settings › Cellular › Cellular Data Options and turn Data Roaming OFF. This is the most critical step. Skipping it means Mauritius roaming charges can still hit your home carrier bill.

2

Buy a travel eSIM

Get a plan from Airalo at $5.06/GB. Do this at home on WiFi before you fly — QR code delivery takes under 60 seconds.

3

Install the eSIM profile

Open phone Settings › Cellular › Add eSIM. Scan the QR code or tap the install link in your confirmation email.

4

Set eSIM as default data on arrival

After landing in Mauritius, go to Settings › Cellular and set your travel eSIM as the primary data line. It connects to CHILI within minutes.

5

Keep home SIM for calls via WiFi Calling

Your home number stays reachable for free over WiFi. You pay eSIM rates for data — 85–95% less than roaming.

Need help with device compatibility? Check eSIM compatible phones or our how eSIMs work guide before purchasing.

iPhone and Android roaming settings for Mauritius

Dual-SIM phones traveling to Mauritius require explicit data line assignment to avoid accidental roaming charges. After installing your Mauritius eSIM, go to your phone's SIM settings and confirm that: (1) Mobile data is set to your eSIM line, not your home SIM. (2) Your home SIM has data roaming disabled as a backup protection. (3) Auto-switch or adaptive data routing is turned off. These three settings together prevent AT&T from charging through my.t if your phone briefly loses the eSIM connection. Your home SIM stays enabled for calls and texts over WiFi. The eSIM handles all cellular data on my.t at $8.10 for 1GB. 5G is available on my.t — your device connects automatically if your plan includes 5G access.

Device-Specific Roaming Settings for Mauritius

iPhone Settings

iPhone 14 and newer models sold in the US are eSIM-only. Both SIM slots are digital. Open Settings > Cellular to see your installed lines. Tap your home carrier line (AT&T, Verizon, or T-Mobile). Turn off Data Roaming under Cellular Data Options. This one toggle prevents the $10/day charge on my.t in Mauritius. Next, install a Mauritius travel e SIM: Settings > Cellular > Add eSIM. Scan the QR code from your eSIM provider or use the provider's app. After installation, go to Settings > Cellular > Cellular Data and select the travel eSIM as your data line. Your home carrier stays active for calls and texts. The eSIM handles all data on my.t at $8.10 for 1GB. Over 7 days, this saves $61.90 versus AT&T Day Pass.

Samsung Settings

Samsung's built-in Data Saver reduces background data usage on your Mauritius eSIM. Settings > Connections > Data Usage > Data Saver ON. This restricts background data for all apps except those you whitelist. Combine with Data Roaming OFF on your AT&T or Verizon line (Settings > Connections > Mobile Networks > Data Roaming OFF). A 1GB e SIM on my.t at $8.10 stretches further with Data Saver active. Whitelist Maps, your messaging app, and your eSIM provider's app. Block background data for social media, news, and streaming apps. Download content over WiFi at your hotel. Data Saver cuts background consumption by 30-50% on Samsung devices.

Pixel Settings

Google Pixel 9 and Pixel 8 on Android 15: open Settings > Network & Internet > SIMs. Tap your home carrier (AT&T, Verizon, or T-Mobile). Toggle Roaming OFF. This prevents the $10/day charge on my.t in Mauritius. Install a travel eSIM: Settings > Network & Internet > SIMs > Add SIM (or download from your provider's app). After scanning the QR code, return to Settings > Network & Internet > SIMs and tap the new e-SIM entry. Set it as your mobile data SIM. Your home carrier handles calls and texts. The eSIM handles all data on my.t at $8.10 for 1GB. Pixel phones support per-SIM roaming toggles, so roaming stays OFF on your home carrier and ON for the eSIM simultaneously.

Dual SIM Configuration

iOS 18 and Samsung One UI 6 allow per-app data line assignment on dual-SIM devices. In Mauritius, assign all data-heavy apps to your eSIM line on my.t. iPhone: Settings > Cellular > scroll to apps > assign each app to the eSIM line. Samsung: Settings > Connections > SIM Manager > tap each app to assign a SIM. Assign Maps, browser, social media, and messaging to the eSIM. Keep the Phone and Messages apps on your home SIM. This prevents accidental data roaming on your home carrier when a specific app makes a network request. The e-SIM at $8.10 for 1GB handles all assigned apps. AT&T charges $10/day if any single app routes data through the home SIM. Per-app assignment eliminates that risk.

Data Usage Monitoring

Pixel phones on Android 15: Settings > Network & Internet > SIMs > tap your e SIM > App Data Usage. This shows per-app consumption on my.t in Mauritius. Set a data warning: Settings > Network & Internet > SIMs > eSIM > Data Warning & Limit. Warning at 16 GB, limit at 19 GB. Your 20GB plan gives a daily budget of 2.9 GB over 7 days. Pixel shows the most data-hungry apps first. Restrict background data for streaming and social media apps that consume more than 100 MB/day. Keep Maps and messaging unrestricted.

Roaming Avoidance Strategies for Mauritius

WiFi Assessment

WiFi availability in Mauritius is good. Hotels, cafes, and public transit offer free connections in most tourist areas. This does not replace a travel e SIM. Hotel WiFi averages 5-15 Mbps shared across dozens of guests. my.t delivers 25 Mbps dedicated to your device. The strategy: use hotel WiFi for streaming and large downloads. Use your eSIM for navigation, messaging, and real-time translation between hotspots. AT&T charges $10/day regardless of WiFi availability. An e-SIM on my.t costs $8.10 for 1GB. WiFi supplements the eSIM. WiFi does not replace it.

Offline Preparation

  1. Download Mauritius in Google Maps before departure. Tap your profile icon, select Offline Maps, and download the regions you plan to visit. Offline maps include street-level navigation, Points of Interest, and basic search. This saves 3-5 MB per Maps session that would otherwise cost $6-10 at $2.05/MB without a roaming plan.
  2. Save the local language for Mauritius in Google Translate (Settings > Offline Translation > download). Offline mode handles text, voice, and camera input without cellular data. Pre-translate hotel addresses, dietary restrictions, and emergency phrases before departure. Store translations as screenshots for instant offline access.
  3. Download entertainment before departure. Netflix, Spotify, and podcasts all support offline downloads. A 7-day trip to Mauritius needs 5-10 hours of offline content for flights, transit, and downtime. Download on home WiFi. Streaming over an eSIM consumes 700 MB per hour of video, draining your plan quickly.
  4. Download Uber and any local ride-hailing apps for Mauritius on home WiFi. Set up your profile, payment method, and emergency contacts before departure. A ride-hailing app without an account is useless at Sir Seewoosagur Ramgoolam (MRU) when you need a car immediately after landing.
  5. Download an offline currency converter app with MUR (Rs) rates. XE and Currency apps both support offline mode after an initial rate download. The local currency in Mauritius is MUR. Pre-load the exchange rate on home WiFi so you can check prices without using cellular data at markets and shops.
  6. Save booking confirmations, boarding passes, and hotel addresses as PDF files or screenshots on your device. Store them in the Files app or a dedicated folder. If your eSIM data runs out or you lose connectivity in Mauritius, offline documents keep your itinerary accessible. Email attachments consume 2-5 MB each to re-download.
  7. Save 999/112 as Mauritius's emergency number in your contacts. Add your hotel address, embassy phone number, and travel insurance hotline. Store these as a contact card that works without internet access. Emergency calls work on any carrier network in Mauritius regardless of your eSIM or roaming status.

Messaging Alternatives

WhatsApp is the dominant messaging platform in Mauritius. WhatsApp is the standard across Western and Southern Europe. Telegram has growing adoption in Eastern Europe. iMessage is common among iPhone users but does not cross the Android divide. WhatsApp text uses 1-5 KB per message. Voice calls use 0.5-1 MB/minute. Video calls use 3-5 MB/minute. A 10-minute video call consumes 30-50 MB. Over a full day of moderate messaging and 2-3 voice calls, budget 50-100 MB. AT&T charges $10/day plus $1-3/minute for traditional calls. An eSIM on my.t at $8.10 for 1GB covers all messaging and calling via WhatsApp without per-minute fees.

Bill Shock Prevention

AT&T

  1. Open the myAT&T app or visit att.com/international before departure.
  2. Check if International Day Pass ($10/day in Mauritius) is auto-enabled on your plan. If so, remove it under Account > International > Manage Day Pass.
  3. Disable data roaming on your iPhone: Settings > Cellular > Cellular Data Options > Data Roaming OFF.
  4. Disable data roaming on Android: Settings > Connections > Mobile Networks > Data Roaming OFF.
  5. Install a Mauritius eSIM before boarding: 1GB on my.t from $8.10.
  6. Set your eSIM as the primary data line: iPhone Settings > Cellular > Cellular Data > select eSIM line.
  7. Turn off Background App Refresh for non-essential apps: Settings > General > Background App Refresh.
  8. AT&T Day Pass resets at midnight US Eastern time, not MUT (UTC+4). A late-evening arrival in Mauritius can trigger two Day Pass charges in two hours.
  9. After landing at Sir Seewoosagur Ramgoolam (MRU): verify data roaming is OFF on your AT&T line and ON for your eSIM line.
  10. Check your AT&T account 48 hours after return. Dispute any charges within the first billing cycle. AT&T occasionally waives first-time roaming charges.
  11. Total AT&T Day Pass cost for 7 days: $70. Total eSIM cost: $101.25 for 20GB. Savings: $0.

Verizon

  1. Open the My Verizon app or visit verizon.com/travel before departure.
  2. Check if TravelPass ($10/day, 2 GB high-speed cap in Mauritius) is active. Remove it under Plan > Travel > Remove TravelPass.
  3. Verizon TravelPass auto-enrolls when your phone connects to my.t. The charge triggers before you clear customs at Sir Seewoosagur Ramgoolam (MRU).
  4. Disable data roaming: iPhone Settings > Cellular > Cellular Data Options > Data Roaming OFF.
  5. Android: Settings > Connections > Mobile Networks > Data Roaming OFF.
  6. Install a Mauritius e-SIM before departure: 1GB on my.t from $8.10.
  7. Verizon caps high-speed data at 2 GB per day on TravelPass. After the cap, speed drops to 600 Kbps for the rest of the day. The eSIM has no daily cap.
  8. After landing at Sir Seewoosagur Ramgoolam (MRU): confirm your Verizon line shows "No Service" or "SOS Only." Your eSIM line should show my.t with signal bars.
  9. Verify no TravelPass charges appear on your Verizon bill within 48 hours of return. Call 611 to dispute within the first billing cycle.
  10. Total Verizon TravelPass cost for 7 days: $70. eSIM alternative: $101.25 for 20GB. Savings: $0.

T-Mobile

  1. T-Mobile Magenta and Go5G include free international data in Mauritius, but speed is throttled to 256 Kbps.
  2. At 256 Kbps: Google Maps takes 30+ seconds to load, ride-hailing apps time out, video calls fail, and photo uploads take 2-5 minutes each.
  3. T-Mobile Go5G Plus adds 5 GB high-speed for $5/day. Go5G Next includes 15 GB/month at high speed. Check which plan you have in the T-Mobile app under Account > Plan Details.
  4. Calls on T-Mobile cost $0.25/minute in Mauritius. Use WhatsApp or FaceTime calling over your eSIM data to avoid per-minute charges.
  5. Install a Mauritius eSIM for full-speed data: 1GB on my.t at $8.10. Set the e SIM as your data line and keep T-Mobile for calls and texts.
  6. T-Mobile's free 2G tier is useful for: text-only WhatsApp messages, basic email (no attachments), and low-bandwidth background sync. It is not useful for: Maps, photos, video, social media, or ride-hailing.
  7. After your trip: check your T-Mobile bill for $0.25/minute call charges. Dispute within the first billing cycle if unexpected charges appear.

Local SIM vs eSIM in Mauritius

Local prepaid SIMs at Sir Seewoosagur Ramgoolam (MRU) in Mauritius cost varies. Available from local carriers at airport counters. Wait time: 15-45 minutes. Passport registration required (Passport required). An eSIM on my.t starts at $8.10 for 1GB with zero wait time and no passport scan. Install before departure. Activate after landing. The convenience gap is largest for short trips. For stays over 30 days, a local prepaid SIM may offer more data per dollar. For trips under 14 days, the e-SIM wins on time, convenience, and total cost.

The Airport Roaming Trap in Mauritius

Your phone connects to my.t the moment the aircraft doors open at Sir Seewoosagur Ramgoolam (MRU). The immigration queue takes 20-60 minutes. During that wait, background apps sync email, check weather, and refresh notifications. AT&T's International Day Pass triggers on the first data byte. Verizon TravelPass auto-enrolls simultaneously. You have not opened a single app yet. The charge: $10 for AT&T, $10 for Verizon. Over 7 days: $70. Prevention: enable airplane mode before landing. Keep it on through customs. Install your eSIM on airport WiFi if not already installed. Activate the e SIM as your data line. Then disable airplane mode. Your phone connects to my.t through the eSIM at $8.10 for 1GB. No $10 trigger.

How to Avoid Roaming Charges in Mauritius

To avoid roaming charges in Mauritius, turn off data roaming in your phone settings and activate a travel eSIM on my.t.

AT&T, Verizon, and T-Mobile each charge differently for Mauritius roaming. AT&T: $10/day. Verizon: $10/day with 2GB cap. T-Mobile: free but throttled to 256 Kbps. An eSIM on my.t gives full 5G speed for $101.25/20GB.

  1. Go to Settings and disable Data Roaming on your carrier's SIM.
  2. Buy a 20GB eSIM for Mauritius ($101.25 on my.t).
  3. Add the eSIM: Settings > Cellular > Add eSIM > scan QR code.
  4. Select the eSIM as mobile data. Your home number stays active for calls.

An eSIM saves $0 compared to 7 days of carrier roaming in Mauritius ($101.25 vs $70).

Carrier Roaming vs eSIM in Mauritius

AT&T charges $10/day in Mauritius — $70 for 7 days.

Verizon TravelPass costs $10/day — $70 for the same trip.

T-Mobile offers free low-speed roaming but charges $5/day for high-speed in Mauritius.

Airalo provides 20GB on my.t for $101.25.

An eSIM saves up to $0 (0%) compared to carrier roaming plans.

Bill Shock Warning: Mauritius

! Bill shock

US carriers charge $10/day in Mauritius. Over 7 days, that bill reaches $70. An eSIM on my.t delivers 20GB for $101.25.

eSIM providers that cover Mauritius

eSIM alternatives

Best eSIM providers for Mauritius

Ranked by price, coverage, and reliability in Mauritius.

eSIM providers for Mauritius, verified June 2026
ProviderRatingCountriesFromBest forActions
Airalo#1 Pick 4.3 out of 5 stars4.3200+$4.50/GBBest Overall
Nomad 4.1 out of 5 stars4.1112+$3.00/GBBest Budget
Saily 4.2 out of 5 stars4.2150+$3.99/GBBest Privacy
Holafly 4.3 out of 5 stars4.3178+$2.99/dayBest Unlimited
HelloRoam 4.4 out of 5 stars4.4186+from $3.50/GBCoverage + Value

Prices verified June 2026By AvoidRoaming Guides

We earn a commission when you purchase through links on this page. It does not change our rankings or the price you pay.

Provider pick

Why Airalo for Mauritius

Airalo leads on price for Mauritius with 20GB at $101.25 on my.t's network. AT&T International Day Pass charges $10/day for the same my.t towers — $70 over 7 days. Airalo connects through identical infrastructure at $5.06/GB. The savings come from removing the carrier middleman. Your home carrier negotiates roaming agreements that add markup at every layer. Airalo contracts directly with my.t, passing the lower rate to you. Plans start at $8.10 for 1GB with no daily activation fee.

Networks

Network coverage in Mauritius

Your phone connects to CHILI when you roam in Mauritius. AT&T bills $10 per day for this single-carrier connection. An eSIM connects to the same CHILI network directly — no carrier middleman, no daily fee. Airalo and 4 other providers route through CHILI at plans starting from $8.10 for 1GB.

Mobile networks in Mauritius — eSIM-compatible carriers, June 2026
OperatorTypes
CHILI5G
Network coverage data verified June 2026.
Speed

Speed test results for Mauritius

Mauritius has limited 5G coverage through my.t. 5G trials. Average download speeds reach 25 Mbps on my.t's network — the same infrastructure AT&T charges $10/day to access via roaming. Public WiFi availability is good.

Connectivity

Internet access beyond cellular in Mauritius

WiFi in Mauritius is good, but it cannot prevent roaming charges on its own. Your phone still searches for my.t between hotspots. Walking from a WiFi-enabled cafe to the street triggers an AT&T connection — $10 charged instantly. Background app refreshes, push notifications, and location services all attempt cellular data the moment WiFi drops. The only reliable prevention is disabling data roaming on your home SIM. An eSIM on my.t then handles all data at local rates. Use WiFi as a backup for heavy downloads. Use the eSIM for everything else. Plans start at $8.10 for 1GB.

Privacy

Privacy tools for travelers to Mauritius

Mauritius places no restrictions on VPN usage. Travelers can run any VPN provider on my.t's network without interference. This matters because WiFi availability is good — and every unsecured WiFi connection exposes banking credentials, email passwords, and payment details. An eSIM on my.t at $8.10 for 1GB provides a private cellular connection that is inherently more secure than public WiFi. Layer your VPN on top of the eSIM connection for maximum privacy. This combination eliminates both AT&T's $10/day roaming charge and the security risks of relying on hotel WiFi.

Pricing

Price comparison: eSIM plans for Mauritius

What a travel eSIM costs in Mauritius versus carrier roaming.

WiFi in Mauritius is good — hotel lobbies, cafes, and transit hubs offer free connections. This means a smaller eSIM plan can stretch further. A 1GB plan at $8.10 covers navigation and messaging between WiFi spots. AT&T charges $10 per day for the same between-WiFi filler — $70 over 7 days. Use WiFi for heavy downloads and streaming. Reserve cellular data for Maps, ride-hailing, and quick searches.

Travel eSIM plan pricing for Mauritius — verified June 2026
DataeSIM PricePer GB
1GB$8.10$8.10
3GB$22.50$7.50
5GB$29.85$5.97
10GB$58.50$5.85
20GB$101.25$5.06
Unlimited / day$9.72/day
Prices sourced from provider websites and updated weekly.
Pricing verified June 2026
Multi-country

Visiting more than just Mauritius?

AT&T charges $10/day per country. Crossing from Mauritius into Algeria, Angola, and Benin resets that daily charge for each border. A Africa trip through 3 countries costs $30/day in AT&T International Day Pass fees — $10 per country, per day. Regional eSIM bundles cover multiple Africa countries under a single plan. One purchase, one activation, zero border penalties. Individual country eSIM rates: Algeria: $34.99 for 20GB; Angola: $136.23 for 10GB; Benin: $119.92 for 20GB. A regional plan often costs less than two days of multi-country AT&T roaming. Check regional bundle availability before booking country-specific plans for multi-stop Africa trips.

Local tips

What to know before you land in Mauritius

What your carrier does not tell you about Mauritius: Airport SIM cards cost roughly $5-10 for 5-10GB / 28 days. eSIM plans start lower and activate before you land. Compact island with good coverage everywhere. Pack a Type C/G power adapter for Mauritius.

Avoid these

The top roaming errors made in Mauritius

1

Forgot to disable roaming

Data roaming left on triggers AT&T's $10/day charge the moment your phone connects to my.t in Mauritius. One push notification activates the full daily charge. Disable it in Settings before boarding, not after landing.

2

WiFi Assist left on

iOS WiFi Assist automatically switches to cellular when hotel WiFi weakens. In Mauritius, this routes data through your home SIM on my.t, triggering AT&T's $10/day charge mid-session. Disable WiFi Assist under Settings > Cellular before departure.

3

Day pass midnight reset misunderstood

AT&T's $10/day pass resets at midnight MUT (UTC+4) time — not local time in Mauritius. Landing at 10pm local time can trigger two separate $10 charges before you sleep. An eSIM on my.t at $8.10 has no midnight reset.

4

Not pre-installing the eSIM

An eSIM requires WiFi to scan and install the QR code. Trying to install at Sir Seewoosagur Ramgoolam (MRU) means competing for congested airport WiFi under time pressure. Install the eSIM at home, 5-7 days before departure.

5

Leaving roaming on just in case

Keeping roaming on "just in case" costs $10/day on my.t whether you use any data or not. A single background push notification triggers the full charge. There is no safe way to leave roaming on while avoiding the fee in Mauritius.

The bottom line

The bottom line on roaming in Mauritius

my.t delivers 25 Mbps in Mauritius. AT&T accesses this same network for $10/day. An eSIM accesses the same network for $101.25 total over 7 days. The download speeds are identical. The coverage map is identical. The tower infrastructure is identical. The $10/day AT&T charge pays for the roaming billing agreement between AT&T and my.t, not for better signal or faster speeds. Remove the billing layer, keep the same my.t signal, and save $0.

Before you fly

Last-minute checklist for Mauritius

1

Disable data roaming: Settings > Cellular > Data Roaming OFF (do this before departure).

2

Install a Mauritius eSIM while on home WiFi — plans from $8.10 for 1GB on my.t.

3

Save 999/112 as Mauritius's emergency number in your contacts.

4

Pack a Type C/G power adapter for Mauritius.

5

Local currency is MUR (Rs).

6

Time zone: MUT (UTC+4). Adjust your phone clock on arrival.

7

After landing at Sir Seewoosagur Ramgoolam (MRU): turn off airplane mode, activate your eSIM as the data line.

8

Keep your home SIM active for calls and texts via WiFi Calling.

Common questions

Roaming answers for Mauritius, answered

How do I disable roaming for AT&T, Verizon, and T-Mobile in Mauritius?

AT&T: log into myAT&T app > Account > Manage Plan > International > disable International Day Pass. Verizon: My Verizon app > Plan > Travel > remove TravelPass. T-Mobile: dial 611 or use the T-Mobile app to disable international features. On your phone itself, disable data roaming: iPhone Settings > Cellular > Data Roaming (off). This blocks carrier data in Mauritius regardless of plan settings. Without a plan, AT&T charges $2.05/MB, Verizon charges $2.05/MB, and T-Mobile throttles to 256 Kbps. An eSIM on my.t at $8.10 gives full-speed data without any carrier involvement.

Yes, background apps are one of the most common sources of surprise roaming bills. With data roaming enabled and no day pass, AT&T charges $2.05/MB in Mauritius. Background App Refresh on iPhone syncs mail, news, and social apps every 15-30 minutes automatically, including at 3am while you sleep. A single overnight background sync session can accumulate $50-200 in charges without you opening your phone. Disable Background App Refresh before travel: Settings > General > Background App Refresh > Off. Then disable data roaming. An eSIM replaces carrier data entirely. Background syncs bill against the eSIM's flat-rate data at $8.10, not your home carrier's per-MB rate.

Call within one billing cycle. AT&T: dial 611, say "billing dispute," request "International Roaming Courtesy Credit." First-time waivers cover up to $300. Verizon: call 800-922-0204, select billing, reference "Travel Adjustment." Verizon typically credits 50-100% for first incidents. T-Mobile: 611 or 877-746-0909, ask for "International Roaming Review." T-Mobile is most generous, often waiving the full amount. For charges over $500, request a supervisor escalation and file an FCC complaint at fcc.gov/consumers/guides/filing-informal-complaint if the carrier refuses. Document your Mauritius travel dates and show that charges from my.t were unintentional. Prevent recurrence with an eSIM at $8.10 for 1GB.

A prepaid eSIM is the most cost-effective way to avoid roaming charges in Mauritius. The best per-GB rate is the 20GB plan at $101.25 total, which works out to $5.06/GB on my.t. Disable data roaming on your home SIM before departure and install the eSIM as your data line. Your home SIM keeps your number active for calls and texts. The eSIM handles all data at flat-rate pricing with no per-day activation fees and no per-MB overages.

AT&T International Day Pass charges $10/day in Mauritius, totaling $70 for a 7-day trip. Verizon TravelPass costs the same $10/day. Without a day pass, AT&T pay-per-use rates reach $2.05/MB, so a 50 MB Google Maps session costs over $100. T-Mobile includes free international data but throttles to 256 Kbps, which is too slow for navigation or video calls. A travel eSIM connects to my.t starting at $8.10 for 1 GB with no daily activation fee and no per-MB overages.

Yes. WhatsApp, FaceTime, and all messaging apps work normally on an eSIM data connection in Mauritius. WhatsApp voice calls use 0.5-1 MB/minute. Video calls use 3-5 MB/minute. A 30-minute FaceTime video call consumes approximately 150 MB. With an eSIM on my.t starting at $8.10, these calls cost a fraction of carrier international calling rates ($1.00-3.00/minute). Your home number stays on your home SIM for regular SMS and calls.

Call forwarding sends all calls to another number (such as a Google Voice number), avoiding per-minute roaming charges on incoming calls. Set up before departure: iPhone dial *72 followed by the forwarding number. Android: Settings > Phone > Call Forwarding. Forward to a VoIP number that rings over data. This way, incoming calls arrive through your eSIM's data on my.t at $8.10 instead of your carrier's $1.00-1.29/minute roaming rate. Disable forwarding after returning home: dial *73 (iPhone/AT&T) or turn off in settings. Test forwarding at home before your trip to Mauritius.

eSIM coverage in Mauritius is identical to carrier roaming because both use my.t's towers. AT&T and Verizon do not operate their own infrastructure abroad. They pay my.t for roaming access and charge you $10/day. An eSIM accesses the same my.t network directly at $8.10/GB. In practice, eSIM users sometimes get better speeds because carrier roaming agreements can deprioritize international users during congestion. Both methods deliver 5G in Mauritius with typical speeds around 25 Mbps.

Yes. WiFi Calling lets you make and receive calls using your home number over any WiFi network without roaming charges. On iPhone: Settings > Phone > WiFi Calling > toggle on. On Android: Settings > Connections > WiFi Calling > toggle on. Test it at home before departure. With WiFi Calling active in Mauritius, incoming calls ring through WiFi instead of my.t's roaming network. Combined with an eSIM for data ($8.10), you have full phone functionality at zero carrier roaming cost. AT&T, Verizon, and T-Mobile all support WiFi Calling. Check with your carrier to confirm it works for international destinations.

AT&T Day Pass includes your domestic data plan while roaming, but throttles to 128 Kbps after hitting the fair-use threshold (typically 2 GB/day). Verizon TravelPass has the same structure. T-Mobile Go5G includes 5 GB of high-speed data per billing cycle for international use, then throttles to 256 Kbps. None of these plans provide truly unlimited high-speed data in Mauritius. An eSIM on my.t at $101.25 for 20GB gives you a clear data allocation at full speed. When it runs out, you can top up rather than being throttled to unusable speeds.

Mauritius has limited carrier competition. CHILI controls most of the mobile market, keeping wholesale rates high. This flows through to travel eSIM prices: 1 GB costs $8.10 versus under $3 in competitive markets. Even at these rates, an eSIM is cheaper than carrier roaming: AT&T charges $10/day regardless of usage. The eSIM at $5.06/GB only charges for data you actually consume.

Passport required This applies to local physical SIM cards only. A travel eSIM installed before departure does not require local registration. It activates through your provider's app and connects to my.t without any in-person paperwork. Plans start at $8.10.

An eSIM is faster and cheaper for most travelers to Mauritius. Install it before departure with no airport queue, no passport paperwork, and no language barrier. Passport required eSIM plans on my.t start at $101.25 for 20GB. A physical SIM requires finding a carrier store after landing and may cost more. The eSIM activates in under 5 minutes from your phone settings. Physical SIMs involve waiting 20-45 minutes at an airport counter and typically cost 20-40% more than eSIM plans for the same data.

Hotel WiFi in Mauritius is a supplement, not a replacement. WiFi availability varies widely by hotel and region. Common issues: slow speeds (2-10 Mbps shared among guests), unstable connections, login walls that expire, and no coverage outside the hotel. You need mobile data for navigation, ride-hailing, real-time translation, and communication between locations. An eSIM on my.t at $8.10 provides mobile data everywhere. Use hotel WiFi for large downloads and video streaming to conserve eSIM data. Rely on the eSIM for everything outside the hotel.

If something goes wrong

eSIM troubleshooting for Mauritius

1

Dual-SIM confusion (set data line correctly)

After landing in Mauritius, verify that Settings shows your eSIM line — not your home SIM — as the active data line. Go to Settings > Cellular (iPhone) or SIM Manager (Android). If data routes through your home SIM, you will be charged AT&T roaming rates on my.t.

2

No signal after landing (toggle airplane mode)

If the eSIM shows no signal after landing at Sir Seewoosagur Ramgoolam (MRU), toggle airplane mode on and off. This forces your phone to re-register with my.t's nearest tower. Wait 30 seconds for the registration to complete before checking connectivity.

3

eSIM not showing in Settings

If your eSIM profile does not appear in Settings after scanning the QR code, restart your device. On iPhone, go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. This resets cellular configuration and forces the eSIM profile to appear.

4

Hotspot not working (enable on eSIM line)

Personal hotspot in Mauritius must be enabled on the eSIM line specifically. On iPhone: Settings > Cellular > select your eSIM line > Personal Hotspot ON. If hotspot is enabled globally but the data line is wrong, hotspot traffic routes through your home SIM's roaming connection.

5

Plan shows active but no internet

An active eSIM plan with no internet in Mauritius usually means the APN settings are incorrect. Contact your eSIM provider for the correct APN for my.t. On iPhone: Settings > Cellular > Cellular Data Network > enter the APN your provider specifies.

Quick reference

Mauritius travel facts

Emergency
999/112
Currency
MUR (Rs)
Time zone
MUT (UTC+4)
Power
Type C/G
Airport
Sir Seewoosagur Ramgoolam (MRU)
Speed
25 Mbps
WiFi
good
5G
limited
Sarah ChenRoaming Charges Analyst
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Former consumer pricing analyst at J.D. Power covering wireless carrier satisfaction surveys

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