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.

Switch: IMBLORXXRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
541-534 A Imbler OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
541-534 1 Imbler OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
541-534 2 Imbler OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
541-534 4 Imbler OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
541-534 5 Imbler OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      
541-534 6 Imbler OR 4323 FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR 672      

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.