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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
281-203 A Spring TX HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
281-203 0 Spring TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-203 1 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-203 2 Spring TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-203 3 Spring TX HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
281-203 4 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-203 5 Spring TX SPRNTXNODS0  9533 SOUTHWESTERN BELL 560      
281-203 6 Spring TX HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
281-203 7 Spring TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-203 8 Spring TX   903C ONVOY, LLC - TX 560      
281-203 9 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.