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: 304 [Rate centres in NPA 304] [Dial plan for NPA 304]

NXX: 936

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-936 A Winfield WV HNTNWVDT5MD  073H TELNYX LLC 254      
304-936 0 Winfield WV CHTNWVLEXBZ  449F ONVOY, LLC - WV 254   2021-03-11   
304-936 1 Winfield WV CHTNWVLEKMD  318J COMCAST IP PHONE, LLC 254   2013-04-25   
304-936 2 Winfield WV HNTNWVDT0MD  9944 LEVEL 3 COMMUNICATIONS, LLC - WV 254   2012-05-03   
304-936 3 Winfield WV CHTNWVLEX4Z  546B MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WV 254   2017-11-13   
304-936 4 Winfield WV CHTNWVLEGMD  624H ONVOY SPECTRUM, LLC 254   2021-06-03   
304-936 5 Winfield WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254   2021-06-27   
304-936 6 Winfield WV CHTNWVLEXBZ  449F ONVOY, LLC - WV 254   2018-11-05   
304-936 7 Winfield WV CHTNWVLEBMD  508J CENTURYLINK COMMUNICATIONS, LLC 254   2015-10-06   
304-936 8 Winfield WV CHTNWVLEXBZ  449F ONVOY, LLC - WV 254   2021-03-11   
304-936 9 Winfield WV HNTNWVDT5MD  073H TELNYX LLC 254   2021-03-07   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.