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: 430 [Rate centres in NPA 430] [Dial plan for NPA 430]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-666 A Denison TX DLLSTX97X5X  965H FRACTEL, LLC 552      
430-666 0 Denison TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
430-666 1 Denison TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552      
430-666 2 Denison TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552      
430-666 3 Denison TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
430-666 4 Denison TX ELSSTXAEGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
430-666 5 Denison TX ELSSTXAEGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
430-666 6 Denison TX   965H FRACTEL, LLC 552      
430-666 7 Denison TX ELSSTXAEGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
430-666 8 Denison TX ELSSTXAEGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
430-666 9 Denison TX DLLSTX97X6X  145J TERRA NOVA TELECOM INC. 552      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.