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: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

<< 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-773 3 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-773 4 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-773 5 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-773 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-773 7 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-773 8 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-773 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-774 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-774 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-774 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-774 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-774 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-774 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-774 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-774 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-774 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-774 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-774 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-775 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-775 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-775 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-775 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-775 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-775 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-775 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-775 6 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-775 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-775 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-775 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-776 A Deckers CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-776 0 Deckers CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-776 1 Deckers CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-776 2 Deckers CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-776 3 Deckers CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-776 4 Deckers CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-776 5 Deckers CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-776 6 Deckers CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-776 7 Deckers CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-776 8 Deckers CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-776 9 Deckers CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-777 A Denver CO AURRCOMADS0  9636 QWEST CORPORATION 656      
720-777 0 Denver CO   9636 QWEST CORPORATION 656      
720-777 1 Denver CO   9636 QWEST CORPORATION 656      
720-777 2 Denver CO   9636 QWEST CORPORATION 656      
720-777 3 Denver CO   9636 QWEST CORPORATION 656      
720-777 4 Denver CO   9636 QWEST CORPORATION 656      
720-777 5 Denver CO   9636 QWEST CORPORATION 656      
720-777 6 Denver CO   9636 QWEST CORPORATION 656      
720-777 7 Denver CO   9636 QWEST CORPORATION 656      
720-777 8 Denver CO   9636 QWEST CORPORATION 656      
720-777 9 Denver CO   9636 QWEST CORPORATION 656      
720-778 A Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-778 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-778 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-778 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-778 3 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-778 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-778 5 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-778 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-778 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-778 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-778 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-779 A Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-779 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-779 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-779 2 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-779 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-779 4 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-779 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-779 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-779 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-779 8 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-779 9 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656      
720-780 A Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 0 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 1 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 3 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 4 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-780 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-781 A Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 0 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 1 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 2 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 3 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 4 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 5 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 6 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 7 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 8 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-781 9 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-782 A Hudson CO DNVRCOZJQMD  7421 AT&T - LOCAL 656      
720-782 0 Hudson CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-782 1 Hudson CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-782 2 Hudson CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-782 3 Hudson CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      

<< 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 >>

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.