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: 281 [Rate centres in NPA 281] [Dial plan for NPA 281]

NXX: 823

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
281-823 A Apollo TX HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-823 0 Apollo TX HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-823 1 Apollo TX HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-823 2 Apollo TX HSTDTXBGCM5  5562 METROPCS, INC. 560   2005-12-23   
281-823 3 Apollo TX HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-823 4 Apollo TX HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-823 5 Apollo TX HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-823 6 Apollo TX HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-823 7 Apollo TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-01-17   
281-823 8 Apollo TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-01-17   
281-823 9 Apollo TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2006-03-31   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.