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: 903 [Rate centres in NPA 903] [Dial plan for NPA 903]

NXX: 989

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-989 A Trenton TX TRENTXXARS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-989 1 Trenton TX   515J IP HORIZON LLC 552   2017-12-15   
903-989 2 Trenton TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-989 3 Trenton TX   903C ONVOY, LLC - TX 552   2020-07-07   
903-989 4 Trenton TX   903C ONVOY, LLC - TX 552   2020-07-07   
903-989 5 Trenton TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-989 7 Trenton TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2013-04-24   
903-989 8 Trenton TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2013-04-24   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.