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
720-539 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-540 A Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-540 0 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-540 1 Denver CO DNVRCOZJRS0  9636 QWEST CORPORATION 656      
720-540 2 Denver CO DNVRCOZJRS0  9636 QWEST CORPORATION 656      
720-540 3 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-540 4 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-540 5 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-540 6 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-540 7 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-540 8 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-540 9 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-541 A Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-541 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-541 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-541 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-541 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-541 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-541 5 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-541 6 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-541 7 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-541 8 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-541 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-542 A Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-542 0 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-542 1 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-542 2 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-542 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-542 4 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-542 5 Denver CO WMNSCOMADS0  9636 QWEST CORPORATION 656      
720-542 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-542 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-542 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-542 9 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-543 A Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 0 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 1 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 2 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 3 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 4 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 5 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 6 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 7 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 8 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-543 9 Denver CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-544 A Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 0 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-544 2 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-544 4 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 5 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 6 Denver CO   829J PAETEC ITEL, LLC 656      
720-544 7 Denver CO ENWDCO47DS4  320E YMAX COMMUNICATIONS CORP. - CO 656      
720-544 8 Denver CO LKWDCOMADS0  9636 QWEST CORPORATION 656      
720-544 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-545 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-545 0 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-545 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-545 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-545 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-545 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-545 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-545 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-545 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-545 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-545 9 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-546 A Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 0 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656      
720-546 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 4 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 5 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 6 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-546 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-547 A Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-547 0 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-547 1 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-547 2 Keenesburg CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-547 3 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-547 4 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-547 5 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-547 6 Keenesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-547 7 Keenesburg CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-547 8 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-547 9 Keenesburg CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
720-548 A Denver CO DNVTCO56AMD  8465 GLOBAL CROSSING LOCAL SERVICES, INC. - CO 656      
720-548 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-548 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 3 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 4 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 6 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-548 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-548 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-548 9 Denver CO DNVTCO56AMD  8465 GLOBAL CROSSING LOCAL SERVICES, INC. - 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: LES.NET

Like this site? We accept donations via PayPal.