Complete Guide 2026

How to Activate TM SIM Roaming

Stay connected abroad with these 4 verified methods — from dialing *143# to using GCash. No more zero signal after landing.

Infographic showing four ways to activate TM SIM roaming.

TM SIM Roaming Activation — Your complete guide to staying connected abroad

Introduction

Struggling to get a signal abroad? If your TM SIM shows no service after landing, you missed a critical step before takeoff.

Activating TM SIM Roaming is not automatic. You must manually enable it using a USSD code or the GlobeOne app. Without it, you face pay-per-use charges or zero connectivity.

This guide covers the four verified methods for 2026 – from dialing *143# to using GCash – so you stay connected the moment you arrive.

What is TM SIM Roaming

TM roaming is a service from Republika ng TM that lets you use your number outside the Philippines. You can send texts make calls and browse the internet.

Important Distinction

Here is where people get tripped up. Roaming signal and roaming data are different. Signal means your SIM connects to a partner network abroad. Data means you bought a promo and can go online. Mix these up and you will have bars but no internet.

Why Activate Before You Leave

If you activate before your flight you avoid landing with zero connection paying expensive pay per use charges missing family calls and struggling to register abroad. Activating takes two minutes and it is free.

Four Verified Methods to Activate TM SIM Roaming

1

Dial *143#

This is my go to method. Open your phone dialer. Type *143#. Press call. Select Roaming. Choose i-ON ang Roaming. Within seconds your roaming is active.

This method needs no internet. It is completely free. It works on any phone. Do this 24 hours before your flight. Your roaming stays pending in the Philippines then springs to life when you land abroad.

2

Reply GROAM YES

Let us say you forgot to activate. Land in your destination country. Wait for a text from TM automatically. Reply GROAM YES to that number. Your roaming activates right away. No preparation needed.

3

Use GlobeOne App

Signal is one thing. Data is another. Download GlobeOne app. Register your TM number. Verify with OTP. Log in. Tap Buy then Buy TM Promos. Select View All Roaming Promos. Pick your promo and confirm.

Pros

  • Shows full promo details
  • Free to use
  • Easy promo tracking

Cons

  • Needs internet to set up
  • Requires app install
  • Can be slow sometimes

Globe recently added Starlink satellite roaming. When you lose cellular signal the service switches to satellite. Globe Starlink 99 gives 100 texts plus 2GB for 30 days.

4

Register via GCash

Open GCash. Tap Load then Mobile then TM. Enter your number. Go to Roaming and International tab. Choose promo and pay. Restart your phone. Turn on Mobile Data and Data Roaming.

Phone Settings You Must Fix

  1. Turn on Mobile Data.
  2. Turn on Data Roaming.
  3. Set APN to internet.globe.com.ph.
  4. Set network mode to 3G.
  5. Restart your phone.
  6. Once your promo is active switch to LTE or 5G.
  7. When back in the Philippines change APN back to http.globe.com.ph.

TM Data Roaming Promos 2026

Roam Surf — Best for most travelers

Promo Price Data Validity
Roam Surf 399 ₱399 1GB 3 days
Roam Surf 999 ₱999 3GB 5 days
Roam Surf 1599 ₱1599 5GB 10 days
Roam Surf 3199 ₱3199 10GB 30 days

Roam SurfAll — Best for groups

Share data with up to four other Globe or TM users. Roam SurfAll 1999 gives 10GB shared. Roam SurfAll 3399 gives 15GB shared. Roam SurfAll 4999 gives 20GB shared.

TM Roaming Call and Text Rates

Service Asia and America Europe and Africa
Outgoing Call ₱120 per minute ₱150 per minute
Incoming Call ₱60 per minute ₱75 per minute
Outgoing Text ₱20 per 160 chars ₱25 per 160 chars
Incoming Text FREE FREE
Pro Tip: Registering for a promo is smarter than pay-per-use.

Common Problems and Fixes

  • If *143# is not responding restart your phone.
  • If data is not working check your APN settings.
  • If GlobeOne app is slow log out and log back in.
  • If you have no signal check if your destination is covered.
  • If nothing works use GlobeOne app help section.

Which Method Should You Use

Use *143# before your flight. Reply GROAM YES if you forgot. Use GlobeOne or GCash to pick data promos. Use GlobeOne app for support.

Frequently Asked Questions

How to activate TM SIM roaming before traveling?
Dial *143# then select i-ON ang Roaming 24 hours before your flight.
What if I forgot to activate?
Reply GROAM YES to the text from TM after you land.
Do I need load to activate?
No for signal. Yes for calls texts and data promos.
What APN should I use?
internet.globe.com.ph abroad. http.globe.com.ph back home.
Can I use regular promos while roaming?
No. Only roaming promos like Roam Surf work.

Related TM SIM Guides

➤ How to Convert TM to Globe
➤ How to Convert TM SIM to eSIM
➤ How to Check Balance in TM
➤ Convert TM Load to GCash
➤ Best APN Setting for TM
➤ How to Pasaload TM
➤ How to Activate TM SIM
➤ TM SIM Registration Home

Conclusion

Activating roaming is a small step that makes a huge difference abroad. The fastest method is *143# before your flight. The most complete method is the GlobeOne app. Make it a habit to activate the day before you travel. That one habit saves you from frustration far from home. Now go activate your TM SIM roaming and travel with peace of mind.

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