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: 936 [Rate centres in NPA 936] [Dial plan for NPA 936]

NXX: 505

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
936-505 A Center TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560      
936-505 0 Center TX   903C ONVOY, LLC - TX 560   2023-10-28   
936-505 1 Center TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 560      
936-505 2 Center TX   903C ONVOY, LLC - TX 560   2021-08-16   
936-505 3 Center TX   903C ONVOY, LLC - TX 560   2021-08-16   
936-505 4 Center TX   624H ONVOY SPECTRUM, LLC 560   2021-11-26   
936-505 5 Center TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2024-12-22   
936-505 6 Center TX   624H ONVOY SPECTRUM, LLC 560   2021-07-09   
936-505 7 Center TX   624H ONVOY SPECTRUM, LLC 560   2021-11-26   
936-505 8 Center TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-09-13   
936-505 9 Center TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 560      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.