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: 361 [Rate centres in NPA 361] [Dial plan for NPA 361]

NXX: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
361-557 A Rockport TX CRCHTXTUXJY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 564      
361-557 0 Rockport TX CRCHTXTUXJY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 564      
361-557 1 Rockport TX CRCHTXTUXJY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 564      
361-557 2 Rockport TX CRCHTXTUXJY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 564      
361-557 3 Rockport TX CRCHTXTUX1Y  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 564      
361-557 4 Rockport TX CRCHTXTUXJY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 564      
361-557 5 Rockport TX CRCHTX9359Z  5562 METROPCS, INC. 564      
361-557 7 Rockport TX CRCHTXTUXJY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 564      
361-557 8 Rockport TX CRCHTXTUXJY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 564      
361-557 9 Rockport TX CRCHTXBB2MD  145J TERRA NOVA TELECOM INC. 564      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.