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: 499

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-499 A Carlsbad NM MSCLNM01DS1  661D MESCALERO APACHE TELECOM, INC. - NM 664      
575-499 0 Carlsbad NM MSCLNM01DS1  661D MESCALERO APACHE TELECOM, INC. - NM 664      
575-499 1 Carlsbad NM MSCLNM01DS1  661D MESCALERO APACHE TELECOM, INC. - NM 664      
575-499 2 Carlsbad NM MSCLNM01DS1  661D MESCALERO APACHE TELECOM, INC. - NM 664      
575-499 3 Carlsbad NM ALBQNMMAXCY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 664      
575-499 4 Carlsbad NM ALBQNMMAXCY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 664      
575-499 5 Carlsbad NM ALBQNMMAXCY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 664      
575-499 6 Carlsbad NM ALBQNMMAXCY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 664      
575-499 7 Carlsbad NM ALBRNMFE6MD  5562 METROPCS, INC. 664      
575-499 8 Carlsbad NM ALBRNMFE6MD  5562 METROPCS, INC. 664      
575-499 9 Carlsbad NM ALBRNMFE5MD  6529 T-MOBILE USA, INC. 664      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.