Following table is of Telecom Operator Code.
| Provider |
Code |
| Airtel |
A |
| BSNL |
B |
| Datacom Solutions |
C |
| Aircel |
D |
| Reliance Telecom |
E |
| HFCL Infotel |
H |
| Idea Cellular |
I |
| BPL Mobile/Loop Telecom |
L |
| MTNL |
M |
| Spice Telecom |
P |
| Reliance Communications |
R |
| S tel |
S |
| Tata Teleservices |
T |
| Unitech Group |
U |
| Vodafone Group |
V |
| Swan Telecom |
W |
| Shyam Telecom |
Y |
|
Following is the table of Regional Code.
| Region |
Code |
| Andhra Pradesh |
A |
| Bihar |
B |
| Delhi |
D |
| UP-East |
E |
| Gujarat |
G |
| Haryana |
H |
| Himachal Pradesh |
I |
| Jammu & Kashmir |
J |
| Kolkata |
K |
| Kerala |
L |
| Mumbai |
M |
| North East |
N |
| Orissa |
O |
| Punjab |
P |
| Rajasthan |
R |
| Assam |
S |
| Tamil Nadu |
T |
| West Bengal |
V |
| UP-West |
W |
| Karnataka |
X |
| Madhya Pradesh |
Y |
| Maharashtra |
Z |
|