Phone numbers in Cortland, Ohio
Cortland has 18 phone prefixes in area codes 234, 330.
Biggest holders: Verizon Wireless, AT&T Mobility, Brightspeed Of Northwest Ohio. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 72%
- Local phone company 17%
- Internet / business phone carrier 11%
Every prefix in Cortland
Search the first six digits of a number in this list. If it's here, the number started in Cortland with the carrier shown. If it isn't, check the Ohio page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 234-220 | Teleport Communications America | Internet / business phone carrier | 2010 |
| 234-235 | AT&T Mobility | Mobile carrier | 2017 |
| 234-242 | Verizon Wireless | Mobile carrier | 2013 |
| 234-244 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 234-305 | Verizon Wireless | Mobile carrier | 2012 |
| 234-309 | Verizon Wireless | Mobile carrier | 2014 |
| 234-315 | Verizon Wireless | Mobile carrier | 2013 |
| 234-318 | Verizon Wireless | Mobile carrier | 2013 |
| 234-337 | Verizon Wireless | Mobile carrier | 2013 |
| 234-500 | Verizon Wireless | Mobile carrier | 2010 |
| 234-899 | Fractel | Internet / business phone carrier | 2021 |
| 330-246 | AT&T Mobility | Mobile carrier | 2004 |
| 330-251 | Verizon Wireless | Mobile carrier | 2012 |
| 330-282 | Brightspeed Of Northwest Ohio | Local phone company | – |
| 330-290 | Verizon Wireless | Mobile carrier | 2011 |
| 330-637 | Brightspeed Of Northwest Ohio | Local phone company | – |
| 330-638 | Brightspeed Of Northwest Ohio | Local phone company | – |
| 330-891 | AT&T Mobility | Mobile carrier | 2015 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.