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.

Washington Zone 1, DC

<< 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
202-951 9 VINNVACBDS0  850D ONVOY, LLC - DC 236   2021-04-29   
202-952 A VINNVACBDS0  850D ONVOY, LLC - DC 236      
202-952 0 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-952 1 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-952 2 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-952 3 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-952 4 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-952 5 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-952 6 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-952 7 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-952 8 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-952 9 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-03-29   
202-953 A VINNVACBDS0  850D ONVOY, LLC - DC 236      
202-953 0 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-953 1 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-953 2 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-953 3 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-953 4 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-953 5 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-953 6 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-953 7 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-953 8 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-953 9 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-08-06   
202-954 A WASHDCACDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-955 A WASHDCMTDS1  9211 VERIZON WASHINGTON DC, INC. 236      
202-956 A WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-956 0 WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-956 1 WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-956 2 WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-956 3 WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-956 4 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2017-05-27   
202-956 5 WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-956 6 WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-956 7 WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-956 8 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-08-20   
202-956 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-08-20   
202-957 A BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
202-960 A MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-960 0 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2020-05-23   
202-960 1 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2020-05-22   
202-960 2 WASHDCSWSMD  551G NUSO, LLC 236   2020-12-12   
202-960 3 WASHDCSWSMD  551G NUSO, LLC 236   2020-12-12   
202-960 4 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2020-05-22   
202-960 5 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2020-05-23   
202-960 6 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-05-27   
202-960 7 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-05-27   
202-960 8 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2020-05-23   
202-960 9 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2020-05-23   
202-961 A WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-961 0 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2020-11-05   
202-961 1 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2020-11-05   
202-961 2 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-09-21   
202-961 3 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-09-21   
202-961 4 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2021-07-20   
202-961 5 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2021-07-20   
202-961 6 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2021-07-20   
202-961 7 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2021-07-20   
202-961 8 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2021-07-20   
202-961 9 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2021-07-20   
202-962 A WASHDCMODS1  9211 VERIZON WASHINGTON DC, INC. 236      
202-963 A WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-963 0 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-05-24   
202-963 1 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-05-24   
202-963 2 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-05-24   
202-963 3 WASHDCSWSMD  551G NUSO, LLC 236   2020-05-29   
202-963 4 WASHDCSWSMD  551G NUSO, LLC 236   2020-05-29   
202-963 5 WASHDCSWSMD  551G NUSO, LLC 236   2020-05-29   
202-963 6 WASHDCSWSMD  551G NUSO, LLC 236   2020-05-29   
202-963 7 WASHDCSWSMD  551G NUSO, LLC 236   2020-05-29   
202-963 8 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2020-05-25   
202-963 9 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2020-05-25   
202-964 A WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-964 0 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-11-06   
202-964 1 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-11-06   
202-964 2 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-11-06   
202-964 3 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-11-06   
202-964 4 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-11-06   
202-964 5 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-11-06   
202-964 6 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-11-06   
202-964 7 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2020-11-06   
202-964 8 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-11-07   
202-964 9 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-11-07   
202-965 A WASHDCGTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-966 A WASHDCWLDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-967 A ARTNVAARXGY  478J NUSO, LLC 236      
202-967 0 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-11-09   
202-967 1 ARTNVAARXGY  478J NUSO, LLC 236   2020-11-08   
202-967 2 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-11-09   
202-967 3 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-11-09   
202-967 4 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-11-09   
202-967 5 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-11-09   
202-967 6 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-11-09   
202-967 7 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-11-09   
202-967 8 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-11-09   
202-967 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-11-09   
202-968 A WASHDCSWNMD  321J HD CARRIER LLC 236      
202-968 0 WASHDC127MD  073H TELNYX LLC 236   2020-12-06   
202-968 1 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-12-06   
202-968 2 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-12-06   
202-968 3 VINNVACBDS0  850D ONVOY, LLC - DC 236   2020-12-06   

<< 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 55 56 57 58 59 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.