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: 575 [Rate centres in NPA 575] [Dial plan for NPA 575]

NXX: 306

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-306 A Roswell NM ALBQNMMAXQX  6010 NEW CINGULAR WIRELESS PCS, LLC 664      
575-306 3 Roswell NM ALBQNMMAXQX  6010 NEW CINGULAR WIRELESS PCS, LLC 664   2024-01-05   
575-306 4 Roswell NM ALBQNMMAXQX  6010 NEW CINGULAR WIRELESS PCS, LLC 664   2024-01-05   
575-306 5 Roswell NM ALBQNMMAXQX  6010 NEW CINGULAR WIRELESS PCS, LLC 664   2024-01-05   
575-306 6 Roswell NM ALBRNMFE5MD  6529 T-MOBILE USA, INC. 664   2023-12-14   
575-306 7 Roswell NM ALBRNMFE5MD  6529 T-MOBILE USA, INC. 664   2023-12-14   
575-306 8 Roswell NM ALBRNMFE5MD  6529 T-MOBILE USA, INC. 664   2023-12-14   
575-306 9 Roswell NM ALBQNMMAXQX  6010 NEW CINGULAR WIRELESS PCS, LLC 664   2023-10-28   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.