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: 401

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
945-401 A McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 0 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 1 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 2 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 3 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 4 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 5 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 6 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 7 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 8 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   
945-401 9 McKinney TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-10-19   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.