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: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

<< 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
667-403 1 Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-11-01   
667-403 2 Towson MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-10-31   
667-403 3 Towson MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-11-18   
667-403 4 Towson MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-11-18   
667-403 5 Towson MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-11-18   
667-403 6 Towson MD BLTQMD013MD  939H COMMIO, LLC 238   2021-11-01   
667-403 7 Towson MD BLTQMD013MD  939H COMMIO, LLC 238   2021-11-01   
667-403 8 Towson MD BLTQMD013MD  939H COMMIO, LLC 238   2021-11-01   
667-403 9 Towson MD BLTQMD013MD  939H COMMIO, LLC 238   2021-11-01   
667-404 A Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-404 0 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2022-08-07   
667-404 1 Prince Frederick MD BLTQMD013MD  939H COMMIO, LLC 238   2022-11-24   
667-404 2 Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-03-24   
667-404 3 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-404 4 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-404 5 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-404 6 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-404 7 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-404 8 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2023-09-21   
667-404 9 Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-04-30   
667-405 A Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-405 0 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2022-06-21   
667-405 1 Glen Burnie MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-05-08   
667-405 2 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-09-12   
667-405 3 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-09-12   
667-405 4 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-13   
667-405 5 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-09-12   
667-405 6 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-05-07   
667-405 7 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-05-07   
667-405 8 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-05-07   
667-405 9 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-05-07   
667-406 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-406 0 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-10-01   
667-406 1 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-10-01   
667-406 2 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2022-07-30   
667-406 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-07-18   
667-406 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-07-18   
667-406 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-07-18   
667-406 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-07-18   
667-406 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-07-18   
667-406 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-07-18   
667-406 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-07-18   
667-407 A Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-407 0 Baltimore MD BLTMMDCHX7X  073H TELNYX LLC 238   2022-10-21   
667-407 1 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2022-07-23   
667-407 2 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-07-22   
667-407 3 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-07-22   
667-407 4 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-07-22   
667-407 5 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-07-22   
667-407 6 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-07-22   

<< 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: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.