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.

Switch: GDISNENWUMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
308-925 7 Morrill NE 508J CENTURYLINK COMMUNICATIONS, LLC 646   2014-12-15   
308-940 7 Central City NE 508J CENTURYLINK COMMUNICATIONS, LLC 646   2015-01-06   
308-999 4 Holdrege NE 508J CENTURYLINK COMMUNICATIONS, LLC 646   2015-01-06   
970-789 A South Sidney CO 508J CENTURYLINK COMMUNICATIONS, LLC 646      
970-789 7 South Sidney CO 508J CENTURYLINK COMMUNICATIONS, LLC 646   2015-03-16   
970-885 7 South Big Springs CO 508J CENTURYLINK COMMUNICATIONS, LLC 646   2016-09-17   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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