When a person or user receives a sms from any company or institute a sender name displayed along with a prefix is in the inbox. For example – DM-SMSHUB, TD-HDFCBK etc.
- Sender ID/Header for Transnational Messages :
 - AM-SMSHUB
 - Where’A’ stands for the operator code here its “Airtel”
 - ‘M’ is stands for the service company area here its “Mumbai”
 - ‘-‘ is the delimiter
 - ‘ABCDEF’ indicates six alphabets for company or organization sending Transnational SMS
 - Only one Sender ID is allowed per account & maximum 6 Characters (alpha numeric)
 - Sender ID is subjected to approval.
 
| OPERATOR | CODE | 
|---|---|
| Aircel, Dishnet Wireless | D | 
| Airtel | A | 
| BSNL | B | 
| BPL Mobile/Loop Telecom | L | 
| Idea Cellular | I | 
| MTNL | M | 
| Reliance Communications | R | 
| Reliance Telecom | E | 
| Tata Teleservices | T | 
| Unitech | U | 
| VodafoneVideocon | VH | 
The latter character represents the location of the operator through which the message is received:
| OPERATOR | 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 | 
| Tamilnadu | T | 
| UP-East | E | 
| UP-West | W | 
| West Bengal | V | 
				





