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: 541 [Rate centres in NPA 541] [Dial plan for NPA 541]

NXX: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
541-310 A Pendleton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
541-310 0 Pendleton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
541-310 1 Pendleton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
541-310 2 Pendleton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-09-28   
541-310 3 Pendleton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2022-11-06   
541-310 4 Pendleton OR PTLDOR13X4X  624H ONVOY SPECTRUM, LLC 672   2021-12-13   
541-310 5 Pendleton OR LNBHWAAA0MD  6349 UNITED STATES CELLULAR - OR 672   2021-09-30   
541-310 6 Pendleton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2021-09-18   
541-310 7 Pendleton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2005-01-19   
541-310 8 Pendleton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2005-01-31   
541-310 9 Pendleton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.