Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 234 [Rate centres in NPA 234] [Dial plan for NPA 234]

NXX: 243

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
234-243 A Warren OH YNTWOHHDFMD  197D VONAGE AMERICA LLC 322      
234-243 0 Warren OH   197D VONAGE AMERICA LLC 322   2018-05-17   
234-243 1 Warren OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 322   2019-12-19   
234-243 2 Warren OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 322   2018-12-18   
234-243 3 Warren OH   464C ONVOY, LLC - OH 322   2019-12-09   
234-243 4 Warren OH   464C ONVOY, LLC - OH 322   2019-12-09   
234-243 5 Warren OH   464C ONVOY, LLC - OH 322   2019-12-09   
234-243 6 Warren OH   6529 T-MOBILE USA, INC. 322   2020-10-05   
234-243 7 Warren OH   6529 T-MOBILE USA, INC. 322   2020-10-05   
234-243 8 Warren OH   6529 T-MOBILE USA, INC. 322   2020-10-05   
234-243 9 Warren OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 322   2022-04-29   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.