| Answer | Crossword Clue |
|---|---|
| GTE | Phone co. of yore |
| GTE | Telecom co. of yore |
| ATT | Part of a phone co.'s number |
| ATT | Phone co. |
| GTE | Phone co. |
| GTE | Cell-phone co. |
| GTE | Phone manufacturing co. |
| GTE | Former phone co. |
| OPER | Phone-co. employee |
| GTE | Onetime phone co. |
| MCI | Phone carrier co. |
| GTE | Cellular phone co. |
| OPER | Phone co. employee |
| OPER | Phone co. helper |
| GTE | Pioneer cell phone co. |
| UTIL | Phone co., for one |
| MABELL | Name for phone co. |
| GTE | Pioneering cell phone co. |
| NYNEX | Baby Bell phone co. |
| ATT | Long-distance phone co. |
