Ever landed in a foreign country and wondered if your Nigerian SIM would still work? Traveling abroad with your Nigerian SIM doesn't mean losing touch. All four major networks, which are MTN, Airtel, Glo, and 9mobile, support international roaming, and the process to activate roaming is simpler than most people think. This blog covers the exact roaming codes in Nigeria and steps you need for each network, so you're never caught off guard when you land.
What Is Data Roaming and How Does It Work in Nigeria?
I know this is not the first time you are hearing about data roaming. But yet, I will tell you what it is. When you travel outside Nigeria, your Nigerian SIM can no longer connect to its home network. Data roaming is what keeps your phone active. It allows your SIM to connect to a partner network in the country you're visiting, so you can still make calls, send texts, and use mobile data without swapping SIMs.
In Nigeria, all four major networks like MTN, Airtel, Glo, and 9mobile have international roaming agreements with operators across the world. This means your Nigerian number stays active abroad, and people back home can still reach you on the same number.
A few things to keep in mind before you travel:
• Your phone must be unlocked and support the frequency bands used in your destination country.
• Roaming charges are separate from your regular local plan.
• It's always better to activate roaming before you travel, not after you land.
Now that you understand how roaming works, let's get into the specific activation steps for each network.
MTN Roaming Code: How to activate MTN International Roaming?
MTN Nigeria's roaming service runs on a plan called MTN TravelPass, which gives you discounted calls, SMS, and data across 50+ countries. Both prepaid and postpaid customers are eligible.
How to activate MTN Data Roaming (TravelPass):
1. Dial *312*6*1#
2. From the menu, select "Roaming & Int'l Offers"
3. Choose your preferred TravelPass plan
4. Confirm your selection — you'll receive an SMS once it's active
5. You can also manage your MTN roaming services anytime by dialing *312*6#.
To use data while roaming on MTN:
Once your TravelPass is active, go to your phone settings and turn on data roaming. Set your network mode to 3G/LTE for faster browsing.
Note: In some destinations like the USA and Australia, voice calls require VoLTE (Voice over LTE) to be active on your device. Check MTN's official website to confirm compatibility before you travel.
When calling Nigeria while abroad, always use the international format: +(234) followed by the number — for example, +234 803 123 4567.
MTN's TravelPass is one of the most structured roaming offerings in Nigeria. Next, let's look at how Airtel handles international roaming.
Airtel Roaming Code: How to Activate Airtel International Roaming?
Airtel Nigeria offers international roaming through its All-in-1 Bundle — an integrated roaming plan that combines voice minutes, SMS, and data at discounted rates across 70+ countries. General roaming without a bundle is available in 150+ countries worldwide.
How to activate Airtel roaming:
1. Option 1 — Via USSD:
1. Dial *789#
2. Follow the on-screen prompts
3. Select your preferred roaming bundle
4. Confirm — activation takes effect once you arrive at your destination
2. Option 2 — Via MyAirtel App:
1. Download the MyAirtel App (available on Google Play and App Store)
2. Sign in with your Airtel number
3. Navigate to the Roaming section
4. Select and activate your preferred bundle
3. Option 3 — Manual activation on arrival:
Switch on your phone at your destination and select a local partner network on your Airtel SIM. This enables calls, SMS, and data automatically.
A few things to note:
• Postpaid customers must have roaming pre-enabled on their line before travelling. Call Airtel customer care at 300 to confirm.
• For support while abroad, call +2348021500300 or email [email protected]
• To enable data roaming on Android: Settings → Network & Internet → Mobile Network → Enable Roaming
• To enable data roaming on iPhone: Settings → Cellular → Cellular Data Options → Data Roaming → On
• Airtel's activation is flexible. You can sort it before leaving Nigeria or right when you land. Up next, here's how Glo approaches activate roaming for its subscribers.
Glo Roaming Code: How to Activate Glo International Roaming?
Glo has roaming agreements with 437+ networks across 180+ countries, giving it one of the widest international coverage footprints among Nigerian networks. How you activate Glo roaming depends on whether you're on a prepaid or postpaid line.
• Prepaid subscribers: Roaming is automatically activated on all Glo prepaid lines. There's no code to dial to enable it. Simply ensure you have sufficient airtime, travel to your destination, and connect to an available partner network.
• Postpaid (contract) subscribers: You must visit any Gloworld outlet across Nigeria and pay a subscription fee at least 2–3 days before your travel date.
How to subscribe to Glo data roaming bundles:
1. Dial *312#
2. Select option 5
3. Choose your preferred data roaming bundle
4. Confirm — the bundle activates when you land and start browsing
You can subscribe to this bundle either before leaving Nigeria or once you've arrived at your destination.
To top up your airtime while abroad: Dial *1*23*Recharge PIN# — this works the same way as topping up locally.
Need support while roaming?
• Prepaid: +234 805 002 0121 or short code 121
• Postpaid: +234 805 002 0200 or short code 200
• When making calls abroad, always use the international dialing format: +(country code)(network code)(number). For example, to call a Nigerian number from the UK: +234 805 585 1145.
Glo keeps things simple for prepaid users. No activation needed, just top up and go. The last network, 9mobile, rounds things off with a standout free incoming calls perk worth knowing about.
9mobile Roaming Code: How to Activate 9mobile International Roaming?
9mobile supports roaming across 300+ networks in 160+ countries. One thing that sets 9mobile apart is its free incoming calls benefit — prepaid subscribers who recharge ₦5,000 or more within a calendar month get up to 100 free incoming minutes on selected partner networks abroad.
How to activate 9mobile roaming:
1. Dial *200*1*1#
2. Select Roaming Services
3. Choose Activate Roaming — activation is free of charge
Ensure your total recharges for the current month are at least ₦5,000 to qualify for free incoming calls. You can check your balance at any time by dialling *310#.
• To enable data roaming on 9mobile: Switch on "data roaming" in your phone settings before or after landing. To monitor your usage and avoid unexpected charges, dial *323#.
• To set a roaming spend limit: Dial *200*1*2# — this caps your roaming spend at ₦10,000 by default. A smart move if you want to stay in control of your bill.
With 9mobile's free incoming calls benefit and straightforward activation code, it's a strong option for cost-conscious travelers.
Tips to Manage Your Data While Roaming Abroad
Activating roaming is only half the job. How you manage your data usage while abroad determines whether you come back to a reasonable bill or an unpleasant surprise. These tips apply across all four networks:
• Turn off background app refresh before you land. Apps like Instagram, Google Drive, and WhatsApp silently consume data even when you're not actively using your phone.
• Connect to Wi-Fi whenever possible. Hotels, airports, and cafes usually offer free Wi-Fi. Use it for heavy tasks like video calls and downloads.
• Disable automatic app updates on both Android and iOS until you're back on your home network.
• Set a mobile data limit on your phone. Both Android and iPhone allow you to set a warning or hard cap directly in your network settings.
• Use your network's spend limit or monitoring code. 9mobile offers *200*1*2#, MTN TravelPass sends built-in usage notifications, and Airtel roaming usage can be tracked via the MyAirtel App.
• Stick to messaging apps over standard calls where possible. WhatsApp, Telegram, and iMessage use far less data than a regular voice call over roaming.
• Check your data balance regularly. Dial *323# on 9mobile, use *312*6# to monitor MTN TravelPass, and track Airtel roaming via *310*3#.
Conclusion
Whether you're on MTN, Airtel, Glo, or 9mobile, staying connected while traveling abroad comes down to knowing the right code and taking a few minutes to activate roaming before your flight. Each network has its own process, but none of them are complicated once you know what to dial.
Activate roaming, pick the right plan for your trip, enable data roaming in your phone settings, and you're set for wherever you're headed.
Prefer to skip roaming altogether? TradeCard also offers eSIMs for international travel, a straightforward way to get data in your destination country without dealing with your home network's roaming charges. Worth checking out before your next trip.
nd when you're back home, if you have gift cards sitting idle, don't let them go to waste. TradeCard is one of the fastest and most reliable platforms for selling gift cards in Nigeria, whether it's iTunes, Amazon, Steam or anything. You can trade gift cards in Nigeria and get paid instantly, right from your phone.
