Karaikudi Telephone Contacts
| Office Name | Contact No |
| Directory Enq. | 197 |
| Complaints(Tollfree) | 12728 |
| Complaints(Tollfree) | 198 |
| Phonogram | 233333,1585 |
| Kallukatti Exc. | 235400,238765 |
| Subramaniapuram Exc. | 226198 |
| Senjai Exc. | 220198 |
| G.M. | 225000 |
| G.M.(P.A.) | 226999 |
| D.G.M | 224000 |
| Karaikudi Telegrams | 230421 |
| Local Enq. | 238000 |
| Telephone Office | 283200 |
| BSNL | 9443883111 |
| LineMan | 283288 |
| Enquiry | 283366 |