A prefix in SMS Messages are the first two characters in the Sender ID. The first alphabet represent the name of the operator and the second alphabet represent the location. A Sender ID is the address of the Sender. With the help of a Sender ID we can easily make out from where we are receiving those messages.
Before we discuss further, let us first see the different types of Sender ID we have:-
Alphabets Sender ID- It is the message received with alphabets sender ID such as VM-ICICIB, V stands for Vodafone, M stands for Mumbai and ICICIB means the message is sent from ICICI Bank.
Numeric Sender ID- It is the message received with Numeric Sender ID such as MN-274657, M stands for MTNL operator, N stands for the location Northeast and 274657 are the six digit Sender ID.
Below are the lists of operators functioning in India:-
CODE OPERATOR NAME
E Reliance Telecom
L LOOP Telecom
P Spice Telecom
R Reliance Comm.
S S Tel.
T Tata Teleservice
W Swan Telecom
Y Shyam Telecom
Below are the lists of Service Area Codes:-
A Andhra Pradesh
E Uttar Pradesh( East)
I Himachal Pradesh
J Jammu & Kashmir
T Tamil Nadu( incl. Chennai)
W Uttar Pradesh(West)
Y Madhya Pradesh
Now I hope you know where your SMS comes from excluding from the phone numbers which are saved in your contact list.
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