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: 564 [Rate centres in NPA 564] [Dial plan for NPA 564]

NXX: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
564-900 A Mount Vernon WA MTVRWAXXQMD  624H ONVOY SPECTRUM, LLC 674      
564-900 0 Mount Vernon WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
564-900 1 Mount Vernon WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
564-900 2 Mount Vernon WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
564-900 3 Mount Vernon WA BOTHWAAK2MD  6529 T-MOBILE USA, INC. 674      
564-900 4 Mount Vernon WA BOTHWAAK2MD  6529 T-MOBILE USA, INC. 674      
564-900 5 Mount Vernon WA BOTHWAAK2MD  6529 T-MOBILE USA, INC. 674      
564-900 6 Mount Vernon WA BOTHWAAK2MD  6529 T-MOBILE USA, INC. 674      
564-900 7 Mount Vernon WA BOTHWAAK2MD  6529 T-MOBILE USA, INC. 674      
564-900 8 Mount Vernon WA BOTHWAAK2MD  6529 T-MOBILE USA, INC. 674      
564-900 9 Mount Vernon WA MTVRWAXXQMD  624H ONVOY SPECTRUM, LLC 674      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.