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: GRDLKSXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
620-836 A Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      
620-836 0 Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      
620-836 1 Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      
620-836 2 Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      
620-836 3 Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      
620-836 4 Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      
620-836 5 Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      
620-836 6 Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      
620-836 7 Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      
620-836 9 Gridley KS 1810 UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK 532      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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