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: 275

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
458-275 A Creswell OR EUGNORAEGMD  6010 NEW CINGULAR WIRELESS PCS, LLC 670      
458-275 0 Creswell OR EUGNOR53ZMD  076F BANDWIDTH.COM CLEC, LLC - OR 670   2023-03-25   
458-275 4 Creswell OR EUGNOR53QMD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 670   2022-02-21   
458-275 7 Creswell OR EUGNORAEGMD  6010 NEW CINGULAR WIRELESS PCS, LLC 670   2024-10-11   
458-275 8 Creswell OR EUGNORAEGMD  6010 NEW CINGULAR WIRELESS PCS, LLC 670   2024-07-15   
458-275 9 Creswell OR EUGNORAEGMD  6010 NEW CINGULAR WIRELESS PCS, LLC 670   2021-12-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.