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]

NXX: 380

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-380 A Annapolis MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-10-31   
667-380 0 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2021-11-01   
667-380 1 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2021-11-01   
667-380 2 Annapolis MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-10-31   
667-380 3 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2021-11-01   
667-380 4 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-05-14   
667-380 5 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-05-14   
667-380 6 Annapolis MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-01-22   
667-380 7 Annapolis MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-01-22   
667-380 8 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-05-14   
667-380 9 Annapolis MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2021-11-01   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.