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]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-425 8 Sterling CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2013-04-04   
970-425 9 Sterling CO DNVRCO26XLX  939H COMMIO, LLC 656   2024-04-06   
970-426 A Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-426 0 Durango CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2013-04-13   
970-426 1 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2007-05-24   
970-426 2 Durango CO DNVRCOII4MD  5562 METROPCS, INC. 656   2006-08-14   
970-426 3 Durango CO DNVRCOII4MD  5562 METROPCS, INC. 656   2016-06-02   
970-426 4 Durango CO DURNCOMAG00  588A ZIPPYTECH INCORPORATED 656   2015-01-10   
970-426 5 Durango CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2013-05-25   
970-426 6 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2015-04-13   
970-426 7 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656   2006-04-05   
970-426 8 Durango CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-426 9 Durango CO DNVRCOII4MD  5562 METROPCS, INC. 656      
970-427 A Fort Morgan CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-427 0 Fort Morgan CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2006-02-05   
970-427 1 Fort Morgan CO   515J IP HORIZON LLC 656   2022-04-29   
970-427 2 Fort Morgan CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2006-02-05   
970-427 3 Fort Morgan CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-02-15   
970-427 4 Fort Morgan CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-10-09   
970-427 5 Fort Morgan CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2011-01-14   
970-427 6 Fort Morgan CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-17   
970-427 7 Fort Morgan CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2013-04-07   
970-427 8 Fort Morgan CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-11-06   
970-427 9 Fort Morgan CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-17   
970-428 A Montrose CO GDJTCOCK2MD  775D NUCLA-NATURITA TELEPHONE COMPANY 656      
970-429 A Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-429 0 Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-429 1 Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-429 2 Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-429 3 Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-429 4 Aspen CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2011-10-08   
970-429 5 Aspen CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2006-11-04   
970-429 6 Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-429 7 Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-429 8 Aspen CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2009-04-29   
970-429 9 Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-430 A Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-430 0 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-430 1 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-430 2 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-430 3 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-430 4 Fort Collins CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2006-11-30   
970-430 5 Fort Collins CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
970-430 6 Fort Collins CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
970-430 7 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
970-430 8 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2009-05-18   
970-430 9 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-431 A Gypsum CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-431 0 Gypsum CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-04-16   
970-431 1 Gypsum CO DNVRCO03DS1  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2017-04-09   
970-431 2 Gypsum CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 3 Gypsum CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 4 Gypsum CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 5 Gypsum CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 6 Gypsum CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-431 7 Gypsum CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-09-04   
970-431 8 Gypsum CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2011-04-03   
970-431 9 Gypsum CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-11-05   
970-432 A Eagle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-432 0 Eagle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-432 1 Eagle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-432 2 Eagle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-432 3 Eagle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-432 4 Eagle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-432 5 Eagle CO DNVRCO03DS1  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2017-04-09   
970-432 6 Eagle CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-11-05   
970-432 7 Eagle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2007-09-01   
970-432 8 Eagle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-04-03   
970-432 9 Eagle CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2018-09-07   
970-433 A Grand Junction CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-433 0 Grand Junction CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-433 1 Grand Junction CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2006-06-17   
970-433 2 Grand Junction CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-433 3 Grand Junction CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2007-11-09   
970-433 4 Grand Junction CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2008-11-21   
970-433 5 Grand Junction CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2006-07-13   
970-433 6 Grand Junction CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2006-07-13   
970-433 7 Grand Junction CO GDJTCOFD5MD  792K CHARTER IP ENABLED SERVICES, LLC 656   2006-09-29   
970-433 8 Grand Junction CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2006-12-04   
970-433 9 Grand Junction CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-434 A Grand Junction CO CFTNCONMDS0  9636 QWEST CORPORATION 656      
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      
970-436 A Lake City CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-436 0 Lake City CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-436 1 Lake City CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-436 2 Lake City CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-13   
970-436 3 Lake City CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2020-10-30   
970-436 4 Lake City CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2020-08-08   
970-436 5 Lake City CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-12-30   
970-436 6 Lake City CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-11-06   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 >>

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.