Airtel SMS Center Number for All Circles (Updated 2026)
If your SMS messages aren’t going through on your Airtel SIM, there’s a good chance your SMSC (SMS Service Center) number is missing or incorrect. This guide will supply you with all Airtel SMS Center Numbers This quick guide has everything you need — the correct Airtel SMS center numbers for every circle, and how to fix the issue on Android or iPhone.
Airtel SMS Center Numbers by State
Each Airtel telecom circle uses a specific SMSC number. Use the one that matches the state where your SIM was registered.
| Circle / State | Airtel SMSC Number |
|---|---|
| Delhi | +919810001002 |
| Mumbai | +919821000040 |
| Maharashtra | +919822000040 |
| Karnataka | +919845000040 |
| Tamil Nadu | +919842000040 |
| Andhra Pradesh | +919848000040 |
| Telangana | +919848000040 |
| Kerala | +919846000040 |
| Punjab | +919814000040 |
| Haryana | +919812000040 |
| Rajasthan | +919829000040 |
| Gujarat | +919898000040 |
| Uttar Pradesh (West) | +919837000040 |
| Uttar Pradesh (East) | +919839000040 |
| Madhya Pradesh | +919893000040 |
| Kolkata | +919831000040 |
| West Bengal | +919832000040 |
| Bihar | +919835000040 |
| Odisha | +919861000040 |
| Himachal Pradesh | +919816000040 |
| Jammu & Kashmir | +919858000040 |
| Northeast | +919862000040 |
| Assam | +919864000040 |
Tip: Not sure which circle your SIM belongs to? Check your original SIM packaging or dial *121# for your account details.
How to Change SMSC on Android
- Open the Phone app and go to the dialer.
- Dial
*#*#4636#*#*to open the Testing menu (works on most Android devices). - Tap Phone Information.
- Scroll down to SMSC and tap Refresh to see the current number.
- Replace it with the correct Airtel SMSC number for your circle, then tap Update.
Alternatively, on some Android phones you can go to Messages → Settings → Advanced → SMS Center and enter the number directly.
How to Change SMSC on iPhone
iPhones do not expose the SMSC field in their settings. However, you can try these steps:
- Remove and reinsert your SIM — this often triggers an automatic SMSC update.
- Reset Network Settings via Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.
- Contact Airtel support at 121 or visit an Airtel store — they can push the correct SMSC configuration to your device remotely.
Why SMS Is Not Sending on Airtel
If your messages are stuck or failing, here are the most common culprits:
Wrong or blank SMSC number — This is the top reason. Use the table above to set the correct number for your circle.
Poor network signal — SMS requires at least a basic 2G connection. Check your signal bars and try moving to an open area.
Message center not provisioned — This can happen after a SIM swap or network migration. Call Airtel at 121 to request reprovisioning.
International SMS blocked — If you’re trying to send abroad, international SMS may be disabled on your plan. You can enable it through the Airtel Thanks app or by calling support.
Prepaid balance issue — Even though standard SMS is often free on postpaid plans, some prepaid packs require an active SMS bundle.
Still having trouble? Reach out to Airtel customer care at 121 (toll-free from your Airtel number) or visit airtel.in/support for live chat assistance.