| Prefixes | City | County | Line Type | Company |
|---|---|---|---|---|
| 234-244 | Cortland | Trumbull | Cell Phone | Tmobile Usa, Inc. |
| 234-248 | Medina | Medina | Cell Phone | Tmobile Usa, Inc. |
| 234-262 | Montgomery | Montgomery | Landline | Unknown |
| 234-310 | Green | Summit | Landline | At&t Local |
| 234-380 | Hudson | Summit | Cell Phone | Tmobile Usa, Inc. |
| 234-421 | Girard | Trumbull | Landline | At&t Local |
| 234-424 | Cortland | Trumbull | Landline | Unknown |
| 234-437 | Sterling | Wayne | Landline | Sprint Communications Compa... |
| 234-466 | Akron | Summit | Landline | At&t Local |
| 234-517 | Youngstown | Mahoning | Cell Phone | New Cingular Wireless Pcs,... |
| 234-542 | Akron | Summit | Landline | Level 3 Communications, Llc... |
| 234-562 | Beloit | Mahoning | Landline | Armstrong Telecommunication... |
| 234-567 | Salem | Columbiana | Landline | Sprint Communications Compa... |
| 234-595 | Glenmont | Holmes | Landline | Sprint Communications Compa... |
| 234-635 | Killbuck | Holmes | Landline | Sprint Communications Compa... |
| 234-678 | Akron | Summit | Landline | Sprint Communications Compa... |
| 234-742 | Holmesville | Holmes | Landline | Sprint Communications Compa... |
| 234-759 | Youngstown | Mahoning | Cell Phone | Tmobile Usa, Inc. |
| 234-789 | San Francisco | San Francisco | Landline | Unknown |
| 234-803 | Schenectady | Schenectady | Landline | Unknown |
| 234-855 | Youngstown | Mahoning | Landline | Sprint Communications Compa... |
| 234-992 | Bonita Springs | Lee | Landline | Unknown |