This section on Indian STD Codes features a list of telephone STD codes starting with Letter O.
STD Code starting with O
STD Code starting with O - A complete list of telephone STD codes of Indian cities starting with O.
| City | STD Code |
| Ooty | 0423 |
This section on Indian STD Codes features a list of telephone STD codes starting with Letter O.
STD Code starting with O - A complete list of telephone STD codes of Indian cities starting with O.
| City | STD Code |
| Ooty | 0423 |