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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-812 5 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2015-10-10   
667-812 6 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2015-10-10   
667-812 7 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2015-10-10   
667-812 8 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2015-10-10   
667-812 9 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2015-10-10   
667-824 A Edgewood MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-824 0 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-10-23   
667-824 2 Edgewood MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-824 3 Edgewood MD   516J TON80 COMMUNICATIONS, LLC 238   2022-03-16   
667-824 4 Edgewood MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-824 5 Edgewood MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-824 6 Edgewood MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-824 7 Edgewood MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-824 8 Edgewood MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-824 9 Edgewood MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-827 A Berlin MD SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242      
667-827 0 Berlin MD   939H COMMIO, LLC 242   2022-08-21   
667-827 1 Berlin MD   876D ONVOY, LLC - MD 242   2023-08-10   
667-827 2 Berlin MD   876D ONVOY, LLC - MD 242   2023-08-10   
667-827 3 Berlin MD   876D ONVOY, LLC - MD 242   2023-08-10   
667-827 4 Berlin MD   876D ONVOY, LLC - MD 242   2023-08-10   
667-827 5 Berlin MD   876D ONVOY, LLC - MD 242   2023-08-10   
667-827 7 Berlin MD   516J TON80 COMMUNICATIONS, LLC 242   2022-05-15   
667-827 8 Berlin MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2025-12-24   
667-827 9 Berlin MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2023-08-07   
667-832 A Brooklyn Park-Linthicum MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-832 0 Brooklyn Park-Linthicum MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-08-19   
667-832 1 Brooklyn Park-Linthicum MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-08-19   
667-832 2 Brooklyn Park-Linthicum MD   5562 METROPCS, INC. 238   2023-04-03   
667-832 3 Brooklyn Park-Linthicum MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-04-03   
667-832 4 Brooklyn Park-Linthicum MD   516J TON80 COMMUNICATIONS, LLC 238   2022-04-25   
667-832 5 Brooklyn Park-Linthicum MD   876D ONVOY, LLC - MD 238   2024-04-19   
667-832 6 Brooklyn Park-Linthicum MD   876D ONVOY, LLC - MD 238   2025-03-02   
667-832 7 Brooklyn Park-Linthicum MD   876D ONVOY, LLC - MD 238   2022-04-26   
667-832 8 Brooklyn Park-Linthicum MD   876D ONVOY, LLC - MD 238   2022-04-26   
667-832 9 Brooklyn Park-Linthicum MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2022-04-26   
667-837 A Port Deposit MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-837 0 Port Deposit MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-07   
667-837 1 Port Deposit MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-07   
667-837 2 Port Deposit MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-08   
667-837 3 Port Deposit MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-08   
667-837 4 Port Deposit MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-07   
667-837 5 Port Deposit MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-08   
667-837 6 Port Deposit MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-08   
667-837 7 Port Deposit MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-08   
667-837 8 Port Deposit MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-08   
667-837 9 Port Deposit MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
667-842 A Woodlawn MD BLTQMD01AMD  965H FRACTEL, LLC 238      
667-842 0 Woodlawn MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-13   
667-842 1 Woodlawn MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-04-09   
667-842 2 Woodlawn MD   876D ONVOY, LLC - MD 238   2025-01-09   
667-842 3 Woodlawn MD   516J TON80 COMMUNICATIONS, LLC 238   2022-03-30   
667-842 4 Woodlawn MD   624H ONVOY SPECTRUM, LLC 238   2022-01-28   
667-842 5 Woodlawn MD   965H FRACTEL, LLC 238   2020-09-12   
667-842 6 Woodlawn MD   624H ONVOY SPECTRUM, LLC 238   2022-01-28   
667-842 7 Woodlawn MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-12-14   
667-842 8 Woodlawn MD   624H ONVOY SPECTRUM, LLC 238   2021-05-23   
667-842 9 Woodlawn MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2021-07-12   
667-843 A Deal Island MD ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242      
667-843 0 Deal Island MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-01-31   
667-843 1 Deal Island MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-01-31   
667-843 2 Deal Island MD   876D ONVOY, LLC - MD 242   2021-05-21   
667-843 3 Deal Island MD   876D ONVOY, LLC - MD 242   2021-05-21   
667-843 4 Deal Island MD   876D ONVOY, LLC - MD 242   2021-04-29   
667-843 5 Deal Island MD   876D ONVOY, LLC - MD 242   2021-04-29   
667-843 7 Deal Island MD   876D ONVOY, LLC - MD 242   2019-03-04   
667-843 8 Deal Island MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-01-31   
667-843 9 Deal Island MD   876D ONVOY, LLC - MD 242   2019-03-04   
667-846 A Cockeysville MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-846 0 Cockeysville MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-846 1 Cockeysville MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-846 2 Cockeysville MD   876D ONVOY, LLC - MD 238   2022-04-26   
667-846 3 Cockeysville MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-846 4 Cockeysville MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-846 5 Cockeysville MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-846 6 Cockeysville MD   516J TON80 COMMUNICATIONS, LLC 238   2022-04-25   
667-846 7 Cockeysville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2025-08-11   
667-846 9 Cockeysville MD   876D ONVOY, LLC - MD 238   2024-04-19   
667-848 A Aberdeen MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 236      
667-848 0 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-11-04   
667-848 1 Aberdeen MD   624H ONVOY SPECTRUM, LLC 236   2021-11-26   
667-848 2 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2022-02-24   
667-848 3 Aberdeen MD   516J TON80 COMMUNICATIONS, LLC 236   2021-05-09   
667-848 4 Aberdeen MD   876D ONVOY, LLC - MD 236   2021-07-11   
667-848 5 Aberdeen MD   876D ONVOY, LLC - MD 236   2021-07-11   
667-848 6 Aberdeen MD   876D ONVOY, LLC - MD 236   2022-02-13   
667-848 7 Aberdeen MD   876D ONVOY, LLC - MD 236   2022-02-13   
667-848 8 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-07-24   
667-848 9 Aberdeen MD   624H ONVOY SPECTRUM, LLC 236   2021-11-26   
667-853 A Pocomoke MD SLBRMD90DS0  469J CORETEL MARYLAND, INC. - MD 242      
667-853 1 Pocomoke MD   624H ONVOY SPECTRUM, LLC 242   2022-02-28   
667-853 2 Pocomoke MD   624H ONVOY SPECTRUM, LLC 242   2022-02-28   
667-853 3 Pocomoke MD   876D ONVOY, LLC - MD 242   2021-03-05   
667-853 4 Pocomoke MD   876D ONVOY, LLC - MD 242   2021-03-05   
667-853 5 Pocomoke MD   792K CHARTER IP ENABLED SERVICES, LLC 242   2022-11-28   
667-853 6 Pocomoke MD   318J COMCAST IP PHONE, LLC 242   2022-12-28   
667-853 7 Pocomoke MD   624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-853 8 Pocomoke MD   876D ONVOY, LLC - MD 242   2021-12-20   
667-853 9 Pocomoke MD   469J CORETEL MARYLAND, INC. - MD 242   2019-11-11   
667-855 A Salisbury MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242      

<< 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 >>

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.