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: 307 [Rate centres in NPA 307] [Dial plan for NPA 307]

NXX: 240

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-240 A Riverton WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-240 0 Riverton WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-240 1 Riverton WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-240 2 Riverton WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-240 3 Riverton WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654      
307-240 4 Riverton WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-240 5 Riverton WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-240 6 Riverton WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-240 7 Riverton WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-240 8 Riverton WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-240 9 Riverton WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.