In our mobile, we get the sms with the code like DM-CBSSBI, TD-IDBIBK, AD-WEBSAM etc. Each code provide a meaning. First Letter from left means Operator code and the second letter means location code. From which location the operator organized the sms.
After hyphen ( – ) there is six characters called sender Id. Sender Id must be six character and can be chosen by user who use the sms gateway like bank, company.
| CODE | Service Provider | Region Code |
| A | Airtel | Andhra Pradesh |
| B | BSNL | Bihar |
| C | Datacom Solutions | |
| D | Aircel, Dishnet Wireless | |
| E | Reliance Telecom | UP-East |
| G | Gujarat | |
| H | HFCL Infotel | Haryana |
| I | Idea Cellular | Himachal Pradesh |
| J | Jammu & Kashmir | |
| K | Kolkata | |
| L | BPL Mobile/Loop Telecom | Kerala |
| M | MTNL | Mumbai |
| N | North East | |
| O | Orissa | |
| P | Spice Telecom | Punjab |
| Q | ||
| R | Reliance Communications | Rajasthan |
| S | S tel | Assam |
| T | Tata Teleservices | Tamil Nadu |
| U | Unitech | |
| V | Vodafone | |
| W | Swan Telecom | West Bengal |
| X | Karnataka | |
| Y | Shyam Telecom | Madhya Pradesh |
| Z | Maharashtra |
You can also read – Top 10 Indian Classifieds WebSites