If you ever received a call or SMS from a number whose prefix is 0997 and you asked yourself, “0997 what network is this?”, then do not worry, for you are not alone. Mobile phone prefixes in the Philippines are directly linked to particular telecom operators. The 0997 prefix belongs to TNT, or Talk ‘N Text, which is a subsidiary of Smart Communications.
Knowing the network a number is from is important in a bid to enjoy promos, inter-network fee savings, and having seamless communication. This is an analysis of what you need to know about the 0997 prefix, its network affiliation, and how this influences your everyday mobile use.
What Network Uses 0997?

The mobile prefix 0997 is officially assigned to TNT or Talk ‘N Text. TNT is a prepaid brand managed by Smart Communications. Because TNT runs on Smart’s infrastructure, it benefits from the same strong nationwide network, LTE services, and technical support.
Users of 0997 are typically prepaid subscribers who rely on affordable call, text, and data promos. The prefix 0997 is part of a growing list of TNT prefixes issued in recent years to accommodate the increasing number of mobile users.
Why Does It Matter What Network 0997 Belongs To?
There are three main reasons why knowing what network 0997 belongs to is useful.
Proper Promo Usage
All promos in the Philippines only work within the same network. A good example of this would be a TNT subscriber availing of an TNT-to-TNT promo. That subscriber would not be able to benefit from the same rate if he calls or texts someone who is Globe. Knowing that 0997 is TNT keeps you away from promo mismatches.
Charge Savings
Texting or calling other networks typically equates to more costly rates. It helps that you know 0997 is a TNT number so you can take advantage of the same-network offerings and lower your costs.
Call Identification and Anti-Scam-feature
Having a TNT number can give users an indication of where the call is coming from. If you are trying to confirm a missed or unknown call, if you already know that the number starts with 0997, this can let you know that it’s a TNT subscriber and not an international or spam phone.
TNT and Smart: What’s the Difference?
TNT is a value-focused prepaid brand under Smart Communications. Smart, on the other hand, offers both prepaid and postpaid services and is often associated with premium packages and wider services. However, both TNT and Smart users share the same mobile infrastructure.
This means that while 0997 is a TNT prefix, the signal quality and coverage are as good as Smart’s, making it a great option for cost-conscious users without compromising connectivity.
Complete List of TNT Prefixes
To better understand how 0997 fits into the TNT network, here is a list of TNT prefixes in use today:
0907, 0909, 0910, 0912, 0930, 0938, 0946, 0947, 0948, 0949, 0950, 0951, 0960, 0961, 0963, 0968, 0969, 0973, 0977, 0979, 0989, 0997
If a mobile number begins with any of these prefixes, you can safely assume it is a TNT number.
Best TNT Promos for 0997 Users
TNT offers a wide range of promos suited for different needs. If you are using a number starting with 0997, here are some of the most commonly used promos:
Giga Video 50
Includes 1GB of open access data plus 1GB per day for YouTube and other video apps. Valid for 3 days.
AllNet20
Includes 50 texts to all networks and 20 minutes of calls to any network. Valid for 1 day.
SurfSaya 99
Provides 1GB of data per day plus unlimited texts and calls to TNT and Smart numbers. Valid for 7 days.
Giga Stories 99
Offers data for Facebook, TikTok, and Instagram with 2GB of open access data. Valid for 7 days.
These promos can be activated using the TNT app, by dialing *123#, or through a regular load retailer.
How to Check if a Number Is TNT
If you’re unsure whether a number is part of the TNT network, here are three easy ways to find out:
Use a Mobile Prefix App
Apps like PreFIX PH help identify which network a number belongs to by analyzing the prefix.
Use TNT’s Official Prefix List
Visit TNT’s official website where you can view the complete list of active prefixes.
Ask the Number Owner
Due to mobile number portability, some users may keep their 0997 number even after switching to another network. A quick confirmation can save you from promo incompatibility.
SIM Registration for 0997 TNT Numbers

As required by the Philippine SIM Card Registration Act, all mobile subscribers must register their SIM cards. To register your 0997 TNT number, follow these steps:
- Visit simreg.smart.com.ph
- Enter your TNT mobile number
- Fill out the required personal information
- Upload a valid government-issued ID and a selfie
- Submit and wait for confirmation via SMS
Failure to register your SIM will result in deactivation, which means loss of service and number.
Can You Transfer a 0997 Number to Another Network?
Yes. Under the Mobile Number Portability law, users are allowed to keep their existing numbers, including 0997, even when switching to another network such as Globe or DITO.
However, once you transfer, your number will no longer function as a TNT subscriber line. Promos exclusive to TNT will not work, and you’ll need to use offers from the new network.
Contacting TNT Support for 0997 Numbers
If you encounter problems with your 0997 number, you can reach TNT customer support through the following methods:
- Call *888 on your TNT phone
- Visit tntph.com
- Message them on Facebook at @TNTph
- Tweet them via X (formerly Twitter) at @TalkNText
Their customer support operates 24/7 and can assist with blocked SIMs, lost SIMs, registration issues, and promo help.
FAQs About 0997 What Network TNT
Is 0997 a TNT or Smart number?
0997 is a TNT number, which operates under the Smart Communications network.
Can I use Smart promos on my 0997 TNT number?
Some Smart promos may work, but it is recommended to use TNT-specific offers for best results.
Is 0997 a prepaid number?
Yes. TNT, including 0997 numbers, is designed as a prepaid service for flexible usage.
Can I register my 0997 number while overseas?
Yes. As long as you have access to the internet and a valid ID, you can register your SIM online.
What happens if I don’t register my 0997 SIM?
Your SIM will be deactivated, and you’ll lose access to all services including text, calls, and data.
The 0997 mobile number prefix is actually under TNT, which is a low-cost prepaid brand under Smart Communications. Being a TNT 0997 number enables its subscribers to make smart decisions on promos, avoid unnecessary charges, and be well-aware of their mobile experience. Being a 0997 user yourself, keep your SIM registered, explore TNT’s huge array of offers, and experience value-for-money mobile service across the Philippines.