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.

Switch: SNANTX91X8X

<< 1 2 3 4

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-649 4 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2022-01-16   
956-649 9 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2022-01-16   
956-679 4 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2022-12-19   
956-679 5 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2022-12-19   
956-815 8 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2016-02-09   
956-815 9 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2016-02-09   
956-949 A Laredo TX 4290 STPCS JOINT VENTURE, LLC 566      
956-949 9 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2007-09-03   
956-952 0 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2021-11-14   
956-952 9 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2021-11-14   
956-955 0 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2020-09-11   
956-955 1 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2020-09-11   
956-955 2 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2020-09-11   
956-955 9 Laredo TX 4290 STPCS JOINT VENTURE, LLC 566   2020-09-11   

<< 1 2 3 4

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.