Area Codes
| 283 | Ohio (Cincinnati, Middletown, Hamilton, Norwood, Lebanon and southwestern Ohio. Overlay of code 283 postponed. Currently 513.) | More information at: Area Code 283 Phone Number Blocks
| 283 | Ohio (Cincinnati, Middletown, Hamilton, Norwood, Lebanon and southwestern Ohio. Overlay of code 283 postponed. Currently 513.) | More information at: Area Code 283 Phone Number Blocks