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: 877

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
979-877 A Sealy TX SELYTXSERS1  9533 SOUTHWESTERN BELL 560      
979-877 0 Sealy TX   9533 SOUTHWESTERN BELL 560      
979-877 1 Sealy TX   5562 METROPCS, INC. 560   2016-06-24   
979-877 2 Sealy TX   9533 SOUTHWESTERN BELL 560      
979-877 3 Sealy TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-12-10   
979-877 4 Sealy TX   9533 SOUTHWESTERN BELL 560      
979-877 5 Sealy TX   9533 SOUTHWESTERN BELL 560      
979-877 6 Sealy TX   9533 SOUTHWESTERN BELL 560      
979-877 7 Sealy TX   9533 SOUTHWESTERN BELL 560      
979-877 8 Sealy TX   9533 SOUTHWESTERN BELL 560      
979-877 9 Sealy TX   9533 SOUTHWESTERN BELL 560      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.