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: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
945-544 A Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
945-544 0 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
945-544 1 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
945-544 2 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
945-544 3 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
945-544 4 Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
945-544 5 Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
945-544 6 Frisco TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
945-544 7 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
945-544 8 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
945-544 9 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.