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: 979 [Rate centres in NPA 979] [Dial plan for NPA 979]

NXX: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
979-637 A El Campo TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
979-637 0 El Campo TX   6701 AERIAL COMMUNICATIONS, INC. 560      
979-637 1 El Campo TX   6701 AERIAL COMMUNICATIONS, INC. 560      
979-637 2 El Campo TX   939H COMMIO, LLC 560   2024-01-19   
979-637 3 El Campo TX   939H COMMIO, LLC 560   2024-01-19   
979-637 4 El Campo TX   903C ONVOY, LLC - TX 560   2021-02-18   
979-637 5 El Campo TX   624H ONVOY SPECTRUM, LLC 560   2021-11-26   
979-637 6 El Campo TX   6701 AERIAL COMMUNICATIONS, INC. 560      
979-637 7 El Campo TX   145J TERRA NOVA TELECOM INC. 560   2024-05-10   
979-637 8 El Campo TX   5562 METROPCS, INC. 560   2016-06-24   
979-637 9 El Campo TX   624H ONVOY SPECTRUM, LLC 560   2021-11-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.