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: 970 [Rate centres in NPA 970] [Dial plan for NPA 970]

NXX: 435

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-435 A South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      
970-435 0 South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      
970-435 1 South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      
970-435 2 South Laramie CO CHYNWYMAEMD  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 654      
970-435 3 South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      
970-435 4 South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      
970-435 5 South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      
970-435 6 South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      
970-435 7 South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      
970-435 8 South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      
970-435 9 South Laramie CO LARMWYNMDS0  9636 QWEST CORPORATION 654      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.