The official Access Point Name (APN) for all BSNL 4G and 3G SIM cards across India is bsnlnet. If your new BSNL 4G SIM shows signal bars without loading websites, configuring the bsnlnet profile manually or texting GPRS to 53733 activates your mobile data immediately.
Using BSNL in a village or highway town? Read our technical breakdown on how BSNL 700 MHz Band 28 works in rural areas.
Official BSNL 4G APN Configuration Table (2026)
Ignore fake YouTube tricks that tell you to enter random proxy numbers. BSNL's core packet gateway only routes data cleanly when your APN fields match these exact official parameters:
Step-by-Step Manual APN Setup:
Open Settings > Mobile Network > BSNL SIM > Access Point Names, tap Add (+), and enter:
- Name: BSNL 4G Net
- APN: bsnlnet
- Proxy / Port: Not Set (Leave Blank)
- APN Type: default,supl
- APN Protocol: IPv4/IPv6
- Bearer: Unspecified (or LTE)
Tap the three dots at the top to Save, select the radio button next to BSNL 4G Net, and restart your phone.
The Automatic 53733 SMS Configuration Trick
Want BSNL's server to push the profile to your phone automatically? Open your SMS app, type GPRS in capital letters, and send it to 53733 (toll-free).
Within 30 seconds, BSNL sends back an OTA configuration message. Tap "Install" (enter PIN 1234 or 0000 if prompted) and your APN is ready.
Why You Should Keep Network Mode on "4G/3G/2G Auto"
Locking your phone to "LTE Only" on BSNL can break your voice calls and leave you offline when travelling between towns. Keep your Preferred Network Type set to 4G/3G/2G (Auto) with VoLTE enabled, then test your new throughput on our BSNL Speed Test & Coverage Tool.
BSNL 4G APN & Network Diagnostic Reference Table
Check the reference table below to verify every field of your BSNL mobile data configuration and troubleshoot common connection errors on Android and iPhone:
How to Activate BSNL 4G VoLTE So Data Never Drops During Calls
Does your BSNL 4G icon disappear the instant someone calls your number? That happens when Voice over LTE (VoLTE) is inactive on your SIM profile, forcing your phone down to 2G or 3G for every voice call.
Open your SMS app and send ACT VOLTE to 53733 (or call 1503 customer care) to enable HD 4G calling on your number. Once the VoLTE icon appears at the top of your screen, your downloads and hotspot stay active even during long phone calls.
FAQ:-
Do BSNL 3G and BSNL 4G use the same APN setting?
Yes. The bsnlnet Access Point Name works across BSNL 2G, 3G, and 4G LTE networks nationwide, so you never need to switch profiles when moving between circles.
Why is my BSNL internet still slow after saving bsnlnet?
If your APN is set to bsnlnet but speeds remain below 1 Mbps, either you crossed your daily 2 GB FUP limit (check via *124#) or your local tower sector is congested during evening peak hours.
Should I type www.google.com in the BSNL APN Server field?
Leave the Server field as Not Set. When you want faster domain lookups on your phone, configure your Android Private DNS option instead of editing the APN Server box.
