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: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-300 A Cooper TX COPRTXAI1MD  4042 CUMBY TELEPHONE COOPERATIVE, INC. 552      
903-300 0 Cooper TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-300 1 Cooper TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-300 2 Cooper TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-300 3 Cooper TX COPRTXAI1MD  4042 CUMBY TELEPHONE COOPERATIVE, INC. 552      
903-300 4 Cooper TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
903-300 5 Cooper TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-300 6 Cooper TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-300 7 Cooper TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
903-300 8 Cooper TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-300 9 Cooper TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.