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: 432 [Rate centres in NPA 432] [Dial plan for NPA 432]

NXX: 599

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
432-599 A Midland TX MDLDTXMUX6Y  6529 T-MOBILE USA, INC. 542      
432-599 0 Midland TX   6529 T-MOBILE USA, INC. 542   2004-10-09   
432-599 1 Midland TX   6529 T-MOBILE USA, INC. 542   2004-10-09   
432-599 2 Midland TX   6529 T-MOBILE USA, INC. 542   2007-01-11   
432-599 3 Midland TX   6529 T-MOBILE USA, INC. 542   2007-06-22   
432-599 4 Midland TX   6529 T-MOBILE USA, INC. 542   2008-08-29   
432-599 5 Midland TX   6529 T-MOBILE USA, INC. 542   2009-10-07   
432-599 6 Midland TX   6529 T-MOBILE USA, INC. 542   2015-01-04   
432-599 7 Midland TX   6529 T-MOBILE USA, INC. 542   2021-07-16   
432-599 8 Midland TX   6529 T-MOBILE USA, INC. 542   2005-12-15   
432-599 9 Midland TX   6529 T-MOBILE USA, INC. 542   2005-12-15   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.