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.

Denver, CO

<< 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 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
720-648 4 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-648 5 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-648 6 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-648 7 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-648 8 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-648 9 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-650 A DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 0 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 1 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 2 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 3 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 4 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 5 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 6 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 7 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 8 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-650 9 DNVRCOII4MD  5562 METROPCS, INC. 656      
720-651 A AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-651 0 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-651 1 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-651 2 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-651 3 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-651 4 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-651 5 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-651 6 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-651 7 DNVRCOII4MD  5562 METROPCS, INC. 656      
720-651 8 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-651 9 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-653 A AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-653 0 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-653 1 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-653 2 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-653 3 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-653 4 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-653 5 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-653 6 DNVRCOII4MD  5562 METROPCS, INC. 656      
720-653 7 DNVRCOII4MD  5562 METROPCS, INC. 656      
720-653 8 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-653 9 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-654 A DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 0 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 1 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 2 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 3 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 4 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 5 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 6 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 7 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 8 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-654 9 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-655 A DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 0 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 1 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 2 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 3 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 4 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 5 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 6 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 7 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 8 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-655 9 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-656 A DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-656 0 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-656 1 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-656 2 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-656 3 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-656 4 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-656 5 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-656 6 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-656 7 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-656 8 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-656 9 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-657 A DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 0 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 1 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 2 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 3 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 4 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 5 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 6 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 7 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 8 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-657 9 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-658 A WNDSCODCCM0  016G TELSTAR COMMUNICATIONS INC 656      
720-659 A DNVRCO26DMD  197D VONAGE AMERICA LLC 656      
720-659 0 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-659 1 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-659 2 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-659 3 DNVRCO26DMD  197D VONAGE AMERICA LLC 656      
720-659 4 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-659 5 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-659 6 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-659 7 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-659 8 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-659 9 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-660 A AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-660 0 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-660 1 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-660 2 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-660 3 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.