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: 337

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
458-337 A Albany OR EUGNOR530MD  6529 T-MOBILE USA, INC. 670      
458-337 0 Albany OR CSBYORXXIMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 670   2026-02-09   
458-337 1 Albany OR CSBYORXXIMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 670   2026-02-09   
458-337 2 Albany OR EUGNORAEGMD  6010 NEW CINGULAR WIRELESS PCS, LLC 670   2026-03-06   
458-337 3 Albany OR   750E ONVOY, LLC - OR 670   2026-07-24   
458-337 4 Albany OR   750E ONVOY, LLC - OR 670   2026-07-24   
458-337 5 Albany OR   076F BANDWIDTH.COM CLEC, LLC - OR 670   2026-08-08   
458-337 7 Albany OR EUGNOR144MD  145J TERRA NOVA TELECOM INC. 670   2026-02-09   
458-337 8 Albany OR   750E ONVOY, LLC - OR 670   2026-07-24   
458-337 9 Albany OR EUGNOR530MD  6529 T-MOBILE USA, INC. 670   2026-02-06   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.