Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 531 [Rate centres in NPA 531] [Dial plan for NPA 531]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-221 A South Yankton NE   872G ONVOY, LLC - NE 640   2019-07-01   
531-221 1 South Yankton NE   549E ONVOY, LLC - NE 640   2020-06-15   
531-221 2 South Yankton NE   549E ONVOY, LLC - NE 640   2019-07-01   
531-221 3 South Yankton NE   549E ONVOY, LLC - NE 640   2019-10-31   
531-221 5 South Yankton NE   549E ONVOY, LLC - NE 640   2019-09-16   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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