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: 402 [Rate centres in NPA 402] [Dial plan for NPA 402]

NXX: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
402-356 A Carleton NE CATNNEXLRP0  1568 WINDSTREAM NEBRASKA, INC. 958      
402-356 0 Carleton NE   549E ONVOY, LLC - NE 958   2021-12-09   
402-356 1 Carleton NE   995E BANDWIDTH.COM CLEC, LLC - NE 958   2011-12-24   
402-356 2 Carleton NE   1568 WINDSTREAM NEBRASKA, INC. 958      
402-356 3 Carleton NE   549E ONVOY, LLC - NE 958   2019-04-18   
402-356 4 Carleton NE   1568 WINDSTREAM NEBRASKA, INC. 958      
402-356 5 Carleton NE   549E ONVOY, LLC - NE 958   2021-03-19   
402-356 6 Carleton NE   549E ONVOY, LLC - NE 958   2021-03-19   
402-356 7 Carleton NE   508J CENTURYLINK COMMUNICATIONS, LLC 958   2014-07-23   
402-356 8 Carleton NE   549E ONVOY, LLC - NE 958   2022-06-27   
402-356 9 Carleton NE   1568 WINDSTREAM NEBRASKA, INC. 958      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.