Service Provider Codes:
A: Bharti Airtel and Bharti Hexacom
B: BSNL
C: Datacom
D: Aircel and Dishnet Wireless
E: Reliance Telecom
H: HFCL
I: Idea Cellular, Aditya Birla Telecom
L: Loop Telecom and BPL
M: MTNL
P: Spice Communications
R: Reliance Communications
S: S. Tel Ltd
T: Tata Teleservices, Tata Teleservices Maharashtra
U: Unitech Group of Companies (Telenor)
V: Vodafone Group of Companies
W: Swan Telecom
Y: Shyam Telecom
Service Area Codes 
A: Andhra Pradesh
B: Bihar
D: Delhi
E: UP (East)
G: Gujarat
H: Haryana
I: Himachal Pradesh
J: Jammu & Kashmir
K: Kolkata
L: Kerala
M: Mumbai
N: North East
O: Orissa
P: Punjab
R: Rajasthan
S: Assam
T: Tamil Nadu, including Chennai
V: West Bengal
W: UP (West)
X: Karnataka
Y: Madhya Pradesh
Z: Maharashtra
For More Detail Visit : smsgatewayhub.com or call 7354673546