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: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

NXX: 408

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-408 A Grand Prairie TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-408 0 Grand Prairie TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-408 1 Grand Prairie TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-408 2 Grand Prairie TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-408 3 Grand Prairie TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-408 4 Grand Prairie TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-408 5 Grand Prairie TX DLLTTX01DMD  6529 T-MOBILE USA, INC. 552   2004-05-16   
972-408 6 Grand Prairie TX DLLTTX01DMD  6529 T-MOBILE USA, INC. 552   2004-07-05   
972-408 7 Grand Prairie TX DLLTTX01DMD  6529 T-MOBILE USA, INC. 552   2004-07-05   
972-408 8 Grand Prairie TX DLLTTX01DMD  6529 T-MOBILE USA, INC. 552   2004-07-05   
972-408 9 Grand Prairie TX   515J IP HORIZON LLC 552   2017-07-14   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.