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.

Dillon, CO

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
970-668 9 FRSCCOMADS1  9636 QWEST CORPORATION 656      
970-752 A DLLNCOMADS0  9636 QWEST CORPORATION 656      
970-760 A DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-760 0 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2010-01-23   
970-760 1 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2023-09-29   
970-760 3 DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2021-10-07   
970-760 4 DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2021-10-07   
970-760 6 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-04-16   
970-760 7 DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-04-16   
970-760 8 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2024-07-03   
970-760 9 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2024-07-03   
970-968 A CPMTCOMARS3  9636 QWEST CORPORATION 656      
970-968 0 CPMTCOMARS3  9636 QWEST CORPORATION 656      
970-968 1 CPMTCOMARS3  9636 QWEST CORPORATION 656      
970-968 2 CPMTCOMARS3  9636 QWEST CORPORATION 656      
970-968 3 CPMTCOMARS3  9636 QWEST CORPORATION 656      
970-968 4 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2011-12-15   
970-968 5 DNVRCOMAGT7  588A ZIPPYTECH INCORPORATED 656   2014-05-25   
970-968 6 CPMTCOMARS3  9636 QWEST CORPORATION 656      
970-968 7 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2018-12-24   
970-968 8 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2018-12-24   

<< 1 2

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.