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: 333

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
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   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.