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
667-331 7 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-08-22   
667-331 8 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-08-22   
667-331 9 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-08-22   
667-332 A New Windsor MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-332 0 New Windsor MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-332 1 New Windsor MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-332 2 New Windsor MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 3 New Windsor MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
667-332 4 New Windsor MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 5 New Windsor MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 6 New Windsor MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 7 New Windsor MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 8 New Windsor MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-332 9 New Windsor MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
667-333 A Armiger-Gibson Island MD BLTMMDSN3MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238      
667-333 0 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-07-25   
667-333 1 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-09-30   
667-333 2 Armiger-Gibson Island MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2021-01-27   
667-333 3 Armiger-Gibson Island MD BLTMMDSN3MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-07-05   
667-333 4 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-07-25   
667-333 5 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-07-25   
667-333 6 Armiger-Gibson Island MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-06-03   
667-333 7 Armiger-Gibson Island MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-06-03   
667-333 8 Armiger-Gibson Island MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-22   
667-333 9 Armiger-Gibson Island MD   515J IP HORIZON LLC 238   2016-05-31   
667-334 A Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
667-334 0 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-11-04   
667-334 1 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-11-04   
667-334 2 Aberdeen MD BLTMMDCH42Z  876D ONVOY, LLC - MD 236   2021-12-19   
667-334 3 Aberdeen MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2021-12-03   
667-334 4 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-01-01   
667-334 5 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-01-01   
667-334 6 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-01-01   
667-334 7 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-01-01   
667-334 8 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-10-10   
667-334 9 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-10-10   
667-335 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-335 0 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-10-11   
667-335 1 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-10-11   
667-335 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-24   
667-335 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-24   
667-335 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-24   
667-335 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-24   
667-335 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-10   
667-335 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-10   
667-335 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-10   
667-335 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-10   
667-336 A Bel Air MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-336 0 Bel Air MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-23   
667-336 1 Bel Air MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-23   

<< 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: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.