What Is the Glo Data Subscription Codes? *312# Guide for 2026

One short code opens the whole Glo data shop: *312#. Dial it on any Glo line and you land on a menu where you can buy daily, weekly, monthly, night, weekend and Mega bundles, check what you already have and manage your data without leaving the dialler.

This guide explains what the code does, every way to use it, the shortcuts and alternatives that sit around it and the problems that trip people up. If you buy Glo data even once a month, five minutes here will save you money and frustration.

Prices and menu layouts change from time to time, so any amount quoted below is marked as what was listed at last check. The code itself is the constant.

What the Glo data subscription code is

*312# is the main USSD code for Glo data. USSD is the system behind codes that start with a star and end with a hash. It works on every phone, needs no internet and opens a text menu you navigate by replying with numbers. Because it needs no data connection, you can use it even when your data has completely run out.

What you can do with *312#

• Buy data bundles in every family: daily, weekly, monthly, Mega, night, hourly and weekend.
• View the plans available on your line along with prices and validity.
• Check your current data balance and expiry through the related balance options.
• Share or gift data within the limits Glo sets.
• Reach special offers when they are running.

How to buy data with *312# step by step

Bundle families you will meet in the menu

Other ways to subscribe

The code is the quickest route, but not the only one. The Glo Café app shows the same bundles with the full details on one screen and lets you pay from your airtime balance or with other payment methods. Many bank apps and airtime vendors also sell Glo data directly to your number. Whichever route you use, check the balance code afterwards to confirm the credit.

How to check your data balance

Dial *323# to see your data balance and expiry date. On some lines the older code *127*0# still works. You can also text the word INFO to 312 and wait for a reply, or open the Glo Café app. If one method returns an error, try another.

Understanding what you see on the menu

Every bundle shows a total size, a price and a validity. Some also show a split between any-time data and night data. Night data works only from 12am to 5am and is already included in the total. If you rarely use data in those hours, subtract the night portion from the total to see your real daytime allowance.

Validity and rollover

Validity is the period your bundle stays active, from one day to a full year depending on the bundle. Unused data can carry over when you renew the same bundle before it expires. Set a reminder a few days before expiry, check your balance and renew early.

Sharing and gifting data

Glo lets you share data from your balance with other numbers through the menu, the app or an SMS command. The number of recipients and the amount you can give are limited, and the limits are updated from time to time. Use the sharing option in the menu to see the current rules before you plan around it.

Buying data for another number

You can buy a bundle for another Glo line, either through the gifting option in the menu or by using the app or a vendor and entering the other person’s number. Always double-check the number you type. A bundle sent to the wrong number cannot easily be recovered.

Night data and the code

The same menu sells night bundles. They are cheap per gigabyte but only usable between 12am and 5am. Buy one when you want to run big downloads or updates overnight, not when you need data during the day.

What to do if *312# does not respond

1. Check that your signal bars are strong and try again.
2. Restart your phone to clear stuck sessions.
3. Confirm the SIM is in the right slot and set as the default for calls on a dual-SIM phone.
4. Make sure you typed the code correctly, with the star at the start and the hash at the end.
5. Try again later if Glo’s system is busy.
6. Use the Glo Café app as a backup.

Common mistakes with the code

Money-saving habits

• Compare the price per gigabyte of two or three bundles before you buy.
• Prefer one larger plan over several small ones.
• Choose the any-time portion that matches your hours of use.
• Buy night bundles for downloads, not for daytime browsing.
• Renew before expiry to keep unused data.
• Check for special offers in the app.

Setting up data on a new phone

A new phone sometimes needs the internet settings to be applied before bundles work. After buying a bundle, turn mobile data on, restart the phone and wait a minute. If the connection still refuses to work, check the access point settings or reset the network settings, as described in our Glo internet settings guides.

Keeping your line healthy

Data purchases require an active, registered line. Keep your SIM registered, keep the number active with occasional recharges and note when your bundle expires. If your line has restrictions, resolve them first. Buying data on a restricted line only leads to failed attempts.

USSD or the Glo Café app: which is better

Use the code when you are out of data and need a bundle quickly. Use the app when you have time to compare and want to catch app-only offers.

Picking a bundle by profile

How expiry dates work in practice

A monthly bundle bought today lasts 30 days from today. A weekly bundle lasts seven days. A daily bundle ends within 24 hours of activation. The clock starts when the bundle is credited, not at midnight. Dial the balance code right after buying and write down the expiry date so you can plan your renewal.

If you buy a second bundle while the first is active, read the menu notes on how the balances combine before you proceed. Rules for stacking have changed from time to time and the confirmation screen explains what will happen to your existing data.

A monthly routine that keeps you in control

1. On the day of purchase, check the balance and note the expiry date.
2. Once a week, dial the balance code and compare your use with the days left.
3. Three days before expiry, decide whether to renew the same bundle or change size.
4. Renew early to carry over unused data.
5. Once a quarter, compare your usage with the menu and move to a better-value size if your habits changed.

Dual-SIM phones and the code

On a dual-SIM phone, USSD codes run on the SIM chosen in your settings or the one you pick when the phone asks. If the code returns an error, check which SIM the phone is using. Setting the Glo SIM as the default for data also stops your bundle from being used by the wrong line.

Staying safe with codes and offers

• Dial codes yourself. Do not follow instructions from strangers who ask you to dial a code you do not recognise.
• Never share your SIM PIN or any recharge card number with anyone who calls or messages you.
• Treat messages promising free data from unknown links with suspicion.
• Only buy through the official menu, the official app or a trusted vendor.

What the confirmation SMS tells you

After a successful purchase you receive an SMS with the bundle size, the amount charged and the validity. Keep it until your balance check confirms the credit. If you ever need to report a problem, the message is your proof of what you bought and when.

Fixing data that will not connect after you buy

Why your data may finish quickly

If a bundle empties faster than expected, look first at app updates, cloud backup and video auto-play. Then check whether a large part of your bundle was night data. A 40GB bundle with 4GB of night data is a 36GB bundle by day. Open your phone’s data usage screen to see which apps used the most.

Planning data for a family or small team

If several people depend on one Glo connection, decide who holds the main bundle and who shares from it. Keep one larger plan on the main line and share within the limits the menu allows, rather than buying a separate small bundle for every phone. Write down each person’s expected use so the data is not drained by one device in the first week.

For shops and small offices, a MiFi or router with a large bundle is usually simpler than sharing from a phone. It keeps work data separate from personal data and gives a single expiry date to manage.

Checking what you spent

Keep your confirmation messages for a month and add up the amounts. Many people are surprised to find that small top-ups cost more than a single larger bundle would have. If your monthly spending on data is rising, compare the price per gigabyte of your usual purchase with the next size up on *312# and consider moving up.

Related codes worth saving

Questions people ask

Final word

Save *312#, learn the menu once and always read the confirmation screen before you reply. Pair it with the balance code *323# and you have everything you need to buy and track Glo data on any phone, with or without an internet connection.