Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 307 [Rate centres in NPA 307] [Dial plan for NPA 307]

NXX: 776

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-776 A Casper WY CHYNWYRF5MD  197D VONAGE AMERICA LLC 654      
307-776 0 Casper WY CHYNWYRF5MD  197D VONAGE AMERICA LLC 654   2018-04-30   
307-776 1 Casper WY CHYNWY07GMD  5562 METROPCS, INC. 654   2021-05-16   
307-776 2 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2021-07-11   
307-776 3 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2021-07-11   
307-776 4 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2019-11-07   
307-776 5 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2019-11-07   
307-776 6 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2019-07-08   
307-776 7 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2019-07-08   
307-776 8 Casper WY CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654   2021-11-20   
307-776 9 Casper WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2019-10-24   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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