| STD Codes of India |
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | Z |
| City | Code |
| Obri | 02966 |
| Obulonaripalli | 08566 |
| Ode | 02692 |
| Odlabari | 03562 |
| Ogdevkalan | 01858 |
| Oglewadi | 02164 |
| Ognaj | 02717 |
| Okha | 02892 |
| Olagadam | 04256 |
| Olakkur | 04147 |
| Olapalayam | 04257 |
| Olgnalrod | 04256 |
| Oliya | 02845 |
| Olpad | 026212 |
| Omerga | 02475 |
| Ompi | 03825 |
| Onda | 03242 |
| Ongole | 08592 |
| Oni | 02353 |
| Ooty | 0423 |
| Oras | 023628 |
| Orathy | 04115 |
| Orgram | 03452 |
| Osmanabad | 02472 |
| Osyan | 02922 |
| Ottu | 01698 |
| Otur | 02132 |
| Ozar(junnar) | 02132 |
| Ozar(nasik) | 02533 |
| Total Records Found: 29 and Total Pages: 1 |
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