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: 297

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
945-297 A Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
945-297 0 Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2023-09-10   
945-297 1 Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2023-09-10   
945-297 2 Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2023-08-25   
945-297 3 Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2023-08-25   
945-297 4 Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2023-08-25   
945-297 5 Frisco TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2023-11-06   
945-297 6 Frisco TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2023-11-06   
945-297 7 Frisco TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2023-11-06   
945-297 8 Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2023-09-10   
945-297 9 Frisco TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2023-11-06   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.