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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-308 2 Towson MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2013-07-24   
667-308 3 Towson MD   876D ONVOY, LLC - MD 238   2014-09-01   
667-308 4 Towson MD   5562 METRO PCS, INC. 238   2013-08-15   
667-308 5 Towson MD   5562 METRO PCS, INC. 238   2013-09-06   
667-308 6 Towson MD   5562 METRO PCS, INC. 238   2013-09-06   
667-308 7 Towson MD   7575 CENTURYLINK COMMUNICATIONS LLC 238   2013-10-01   
667-308 8 Towson MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-01-11   
667-308 9 Towson MD   082H LOCAL ACCESS LLC - MD 238   2013-09-06   
667-309 A Baltimore MD   082H LOCAL ACCESS LLC - MD 238      
667-309 0 Baltimore MD   082H LOCAL ACCESS LLC - MD 238   2014-11-27   
667-309 1 Baltimore MD   082H LOCAL ACCESS LLC - MD 238   2013-09-22   
667-309 2 Baltimore MD   876D ONVOY, LLC - MD 238   2015-07-27   
667-309 3 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2014-05-30   
667-309 4 Baltimore MD   876D ONVOY, LLC - MD 238   2015-07-27   
667-309 5 Baltimore MD   876D ONVOY, LLC - MD 238   2015-07-27   
667-309 6 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2014-03-04   
667-309 7 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2014-03-04   
667-309 8 Baltimore MD   876D ONVOY, LLC - MD 238   2015-07-27   
667-309 9 Baltimore MD   876D ONVOY, LLC - MD 238   2015-07-27   
667-312 A Baltimore MD   361H ATLANTECH ONLINE, INC. - MD 238      
667-312 0 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
667-312 1 Baltimore MD   361H ATLANTECH ONLINE, INC. - MD 238   2015-07-20   
667-312 2 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2016-01-05   
667-312 3 Baltimore MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2015-11-16   
667-312 4 Baltimore MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2017-02-09   
667-312 5 Baltimore MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2018-11-15   
667-312 6 Baltimore MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-12   
667-312 7 Baltimore MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-12   
667-312 8 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
667-312 9 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
667-313 A Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
667-313 0 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-313 1 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-313 2 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-313 3 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-313 4 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-313 5 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-313 6 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-313 7 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-313 8 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-313 9 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2016-01-30   
667-314 A Westminster MD   964H BARR TELL USA, INC. 238      
667-314 0 Westminster MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-07-12   
667-314 1 Westminster MD   964H BARR TELL USA, INC. 238   2016-12-17   
667-314 2 Westminster MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-09-27   
667-314 3 Westminster MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2017-10-30   
667-314 4 Westminster MD   073H TELNYX LLC 238   2017-03-14   
667-314 5 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2017-10-02   
667-314 6 Westminster MD   6664 SPRINT SPECTRUM L.P. 238   2019-11-04   
667-314 7 Westminster MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-07-07   

<< 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 >>

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.