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: 458 [Rate centres in NPA 458] [Dial plan for NPA 458]

NXX: 254

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
458-254 A Klamath Falls OR EUGNOR530MD  6529 T-MOBILE USA, INC. 670      
458-254 0 Klamath Falls OR CSBYORXXIMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 670      
458-254 1 Klamath Falls OR EUGNOR53KMD  750E ONVOY, LLC - OR 670      
458-254 2 Klamath Falls OR EUGNOR140MD  939H COMMIO, LLC 670      
458-254 3 Klamath Falls OR   750E ONVOY, LLC - OR 670      
458-254 4 Klamath Falls OR CSBYORXXIMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 670      
458-254 5 Klamath Falls OR   750E ONVOY, LLC - OR 670      
458-254 6 Klamath Falls OR EUGNOR530MD  6529 T-MOBILE USA, INC. 670      
458-254 7 Klamath Falls OR EUGNOR530MD  6529 T-MOBILE USA, INC. 670      
458-254 8 Klamath Falls OR EUGNOR53XXX  073H TELNYX LLC 670      
458-254 9 Klamath Falls OR EUGNOR530MD  6529 T-MOBILE USA, INC. 670      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.