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: 945 [Rate centres in NPA 945] [Dial plan for NPA 945]

NXX: 387

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
945-387 A Plano TX   6529 T-MOBILE USA, INC. 552   2025-08-01   
945-387 0 Plano TX   903C ONVOY, LLC - TX 552   2025-09-27   
945-387 1 Plano TX   903C ONVOY, LLC - TX 552   2025-09-27   
945-387 2 Plano TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2025-08-18   
945-387 3 Plano TX   6529 T-MOBILE USA, INC. 552   2025-08-01   
945-387 4 Plano TX   6529 T-MOBILE USA, INC. 552   2025-08-01   
945-387 5 Plano TX   6529 T-MOBILE USA, INC. 552   2025-08-01   
945-387 6 Plano TX   6529 T-MOBILE USA, INC. 552   2025-08-01   
945-387 7 Plano TX   6529 T-MOBILE USA, INC. 552   2025-08-01   
945-387 8 Plano TX   6529 T-MOBILE USA, INC. 552   2025-08-01   
945-387 9 Plano TX   6529 T-MOBILE USA, INC. 552   2025-08-01   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.