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.

Switch: HRLNTXKX8MD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-996 3 Mission TX 5562 METROPCS, INC. 568   2018-03-16   
956-996 4 Mission TX 5562 METROPCS, INC. 568   2018-03-16   
956-996 5 Mission TX 5562 METROPCS, INC. 568   2017-04-14   
956-996 7 Mission TX 5562 METROPCS, INC. 568   2018-10-05   
956-997 1 Mission TX 4290 STPCS JOINT VENTURE, LLC 568   2015-11-30   
956-997 7 Mission TX 5562 METROPCS, INC. 568   2018-10-05   
956-998 1 Weslaco TX 4290 STPCS JOINT VENTURE, LLC 568   2013-01-12   
956-998 2 Weslaco TX 4290 STPCS JOINT VENTURE, LLC 568   2013-01-12   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.