| District of Ohio area codes: 740 | |
|---|---|
| Country | United States |
| State/Province | Ohio |
| Major City | Columbus |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 740-403 | Licking | Newark, OH | Sprint Spectrum L.p. |
| 740-404 | Licking | Newark, OH | Sprint Spectrum L.p. |
| 740-405 | Licking | Newark, OH | Aerial Communications |
| 740-406 | Fayette | Washington Court House, OH | Aerial Communications |
| 740-407 | Fairfield | Lancaster, OH | Aerial Communications |
| 740-408 | Muskingum | Zanesville, OH | Aerial Communications |
| 740-409 | Fairfield | Lancaster, OH | Aerial Communications |
| 740-410 | Washington | Beverly, OH | Level 3 Communications |
| 740-412 | Pickaway | Circleville, OH | Cellco Partnership DBA Verizon Wireless |
| 740-413 | Delaware | Ashley, OH | Level 3 Communications |
| 740-414 | Lawrence | Ironton, OH | Level 3 Communications |
| 740-415 | Fairfield | Lancaster, OH | AT&T Local |
| 740-416 | Meigs | Pomeroy, OH | New Cingular Wireless PCS - IL |
| 740-417 | Delaware | Delaware, OH | New Cingular Wireless PCS - IL |
| 740-418 | Jackson | Jackson, OH | New Cingular Wireless PCS - IL |
| 740-419 | Fayette | Jeffersonville, OH | First Communications LLC DBA Corecomm |
| 740-420 | Pickaway | Circleville, OH | Frontier North |
| 740-421 | Guernsey | Cambridge, OH | Level 3 Communications |
| 740-422 | Fairfield | Lancaster, OH | Xo Ohio |
| 740-423 | Washington | Belpre, OH | Ameritech Ohio |
There are 737 prefixes, In the code area, the major cities are Athens, OH;Chillicothe, OH;Delaware, OH;Lancaster,. The major city is Columbus.