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
970-534 3 Greeley CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2006-06-09   
970-534 4 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2009-06-23   
970-534 5 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2007-08-12   
970-534 6 Greeley CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2014-04-04   
970-534 7 Greeley CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-05-24   
970-534 8 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2009-06-23   
970-534 9 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2008-02-04   
970-535 A Mead CO MEADCOMARS1  9636 QWEST CORPORATION 656      
970-535 0 Mead CO MEADCOMARS1  9636 QWEST CORPORATION 656      
970-535 1 Mead CO MEADCOMARS1  9636 QWEST CORPORATION 656      
970-535 2 Mead CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2004-11-11   
970-535 3 Mead CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-04-22   
970-535 4 Mead CO MEADCOMARS1  9636 QWEST CORPORATION 656      
970-535 5 Mead CO DNVTCOUZ0MD  829J PAETEC ITEL, LLC 656   2011-09-21   
970-535 6 Mead CO MEADCOMARS1  9636 QWEST CORPORATION 656      
970-535 7 Mead CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2005-04-22   
970-535 8 Mead CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2006-02-05   
970-535 9 Mead CO MEADCOMARS1  9636 QWEST CORPORATION 656      
970-536 A New Castle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-536 0 New Castle CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2014-10-11   
970-536 1 New Castle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2014-07-19   
970-536 2 New Castle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-03-25   
970-536 3 New Castle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-03-25   
970-536 4 New Castle CO DNVRCO26XSX  145J TERRA NOVA TELECOM INC. 656   2024-09-09   
970-536 5 New Castle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-12-30   
970-536 6 New Castle CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2015-02-27   
970-536 7 New Castle CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-11-06   
970-536 8 New Castle CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-12-30   
970-536 9 New Castle CO DNVRCO26XIX  073H TELNYX LLC 656   2018-05-02   
970-537 A Kremmling CO STSPCO052MD  013B UNION TELEPHONE COMPANY 656      
970-538 A Telluride CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-538 0 Telluride CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656   2021-10-05   
970-538 1 Telluride CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2021-03-07   
970-538 2 Telluride CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2021-03-07   
970-538 4 Telluride CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2021-12-23   
970-538 5 Telluride CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2020-10-30   
970-538 6 Telluride CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2021-09-30   
970-538 7 Telluride CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2020-09-14   
970-538 8 Telluride CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-538 9 Telluride CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-539 A Greeley CO DNVRCOII0MD  5562 METROPCS, INC. 656      
970-539 0 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-539 1 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-539 2 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-539 3 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-539 4 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-539 5 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-539 6 Greeley CO DNVRCOII0MD  5562 METROPCS, INC. 656   2014-09-02   
970-539 7 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-539 8 Greeley CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-539 9 Greeley CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-11-12   
970-540 A Delta CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-540 0 Delta CO   515J IP HORIZON LLC 656   2022-04-29   
970-540 4 Delta CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-540 5 Delta CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-541 A Loveland CO FTCLCOMAAMD  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
970-541 0 Loveland CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-09-04   
970-541 1 Loveland CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-02-28   
970-541 2 Loveland CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-06-23   
970-541 3 Loveland CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2011-11-17   
970-541 4 Loveland CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-12-23   
970-541 5 Loveland CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2012-09-01   
970-541 6 Loveland CO FTCLCOMAAMD  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2010-07-30   
970-541 7 Loveland CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-11-15   
970-541 8 Loveland CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2012-08-22   
970-541 9 Loveland CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2012-10-06   
970-542 A Fort Morgan CO FTMRCOMADS0  9636 QWEST CORPORATION 656      
970-542 0 Fort Morgan CO FTMRCOMADS0  9636 QWEST CORPORATION 656      
970-542 1 Fort Morgan CO FTMRCOMADS0  9636 QWEST CORPORATION 656      
970-542 2 Fort Morgan CO FTMRCOMADS0  9636 QWEST CORPORATION 656      
970-542 3 Fort Morgan CO FTMRCOMADS0  9636 QWEST CORPORATION 656      
970-542 4 Fort Morgan CO FTMRCOMADS0  9636 QWEST CORPORATION 656      
970-542 5 Fort Morgan CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2013-07-28   
970-542 6 Fort Morgan CO FTMRCOMADS0  9636 QWEST CORPORATION 656      
970-542 7 Fort Morgan CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2006-11-04   
970-542 8 Fort Morgan CO DNVRCOMAGT7  588A ZIPPYTECH INCORPORATED 656   2011-04-10   
970-542 9 Fort Morgan CO FTMRCOMADS0  9636 QWEST CORPORATION 656      
970-543 A Mesa CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656      
970-543 0 Mesa CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2023-08-17   
970-543 3 Mesa CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656   2022-05-04   
970-543 8 Mesa CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2023-03-05   
970-544 A Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-545 A Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-545 0 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-545 1 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-545 2 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-545 3 Windsor CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2004-08-13   
970-545 4 Windsor CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2013-04-27   
970-545 5 Windsor CO FTCLCOMAAMD  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2012-12-13   
970-545 6 Windsor CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
970-545 7 Windsor CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
970-545 8 Windsor CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-12-14   
970-545 9 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-546 A Delta CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
970-546 0 Delta CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2016-08-20   
970-546 1 Delta CO GDJTCOMAPMD  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2016-10-14   
970-546 2 Delta CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2020-01-15   
970-546 3 Delta CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656   2021-09-08   
970-546 4 Delta CO DELTCOMADS1  9636 QWEST CORPORATION 656   2018-06-28   
970-546 6 Delta CO FTCLCOMAAMD  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2019-02-18   

<< 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: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.