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.

Sumner, NE

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
308-373 A GDISNEASGMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 646      
308-373 2 GDISNENWJMD  549E ONVOY, LLC - NE 646   2021-12-05   
308-373 7 GDISNENWJMD  549E ONVOY, LLC - NE 646   2021-06-01   
308-373 9 GDISNEASGMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 646   2020-12-04   
308-752 A SMNRNEXHRS0  1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      
308-752 0 SMNRNEXHRS0  1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      
308-752 1 SMNRNEXHRS0  1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      
308-752 2 SMNRNEXHRS0  1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      
308-752 3 SMNRNEXHRS0  1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      
308-752 4 SMNRNEXHRS0  1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      
308-752 5 SMNRNEXHRS0  1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      
308-752 6 SMNRNEXHRS0  1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      
308-752 7 GDISNENWUMD  508J CENTURYLINK COMMUNICATIONS, LLC 646   2015-05-23   
308-752 8   792K CHARTER IP ENABLED SERVICES, LLC 646   2019-01-12   
308-752 9 SMNRNEXHRS0  1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.