SMS prefix consists of the first two letters of a sender ID. It shows which telecom operator and region the message comes from. For example: AX-SBICRD or AX-123456
A: Represents Bharti Airtel (telecom operator).
X: Represents Karnataka (telecom circle).
The prefix helps users identify the source of the message and ensures compliance with Telecom Regulatory Authority of India (TRAI) guidelines.
Other Example : JK - The first character of the prefix indicates the telecom operator. In this case, "J" refers to Reliance Jio. The second character of the prefix signifies the region or telecom circle. "K" denotes the Kolkata region
| Prefix | Operator | Region |
|---|---|---|
| AA | Bharti Airtel | Andhra Pradesh |
| AD | Bharti Airtel | Delhi |
| AK | Bharti Airtel | Kolkata |
| AM | Bharti Airtel | Mumbai |
| AZ | Bharti Airtel | Maharashtra |
| JA | Reliance Jio | Andhra Pradesh |
| JD | Reliance Jio | Delhi |
| JK | Reliance Jio | Kolkata |
| JM | Reliance Jio | Mumbai |
| JZ | Reliance Jio | Maharashtra |
| VA | Vodafone Idea | Andhra Pradesh |
| VD | Vodafone Idea | Delhi |
| VK | Vodafone Idea | Kolkata |
| VM | Vodafone Idea | Mumbai |
| VZ | Vodafone Idea | Maharashtra |
| Service Provider | Code |
|---|---|
| Bharti Airtel Ltd/ Bharti Hexacom Ltd | A |
| Aircel Ltd/ Dishnet Wireless Ltd | D |
| Bharat Sanchar Nigam Ltd - BSNL | B |
| Quadrant Televentures Limited | Q |
| Mahanagar Telephone Nigam Ltd - MTNL | M |
| Reliance Communications Ltd - RCOM | R |
| Reliance Jio Infocomm Ltd - RJIO | J |
| Reliance Telecom Ltd | E |
| Tata Teleservices | T |
| Vodafone Idea Ltd | V |
| V-CON Mobile & Infra Private Ltd | C |
| Service Provider | Code |
|---|---|
| Andhra Pradesh | A |
| Assam | S |
| Bihar | B |
| Delhi | D |
| Gujarat | G |
| Haryana | H |
| Himachal Pradesh | I |
| Jammu & Kashmir | J |
| Karnataka | X |
| Kerala | L |
| Kolkata | K |
| Madhya Pradesh | Y |
| Maharashtra | Z |
| Mumbai | M |
| North East | N |
| Orissa | O |
| Punjab | P |
| Rajasthan | R |
| Tamil Nadu | T |
| Up-East | E |
| Up-West | W |
| West Bengal | V |