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: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-497 A Montrose CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-497 0 Montrose CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2005-10-07   
970-497 1 Montrose CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2005-03-16   
970-497 2 Montrose CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2005-03-16   
970-497 3 Montrose CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2005-03-16   
970-497 4 Montrose CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-497 5 Montrose CO DURNCOBSDS0  330B FASTTRACK COMMUNICATIONS, INC. - CO 656   2006-06-05   
970-497 6 Montrose CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2006-02-23   
970-497 7 Montrose CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2011-04-04   
970-497 8 Montrose CO MTRSCOMADS0  9636 QWEST CORPORATION 656   2006-02-13   
970-497 9 Montrose CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2006-06-17   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.