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: 202

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-202 A Oakland NE BLLVNEBLCMD  073H TELNYX LLC 644      
531-202 0 Oakland NE OMAKNEYW0MD  073H TELNYX LLC 644   2018-08-31   
531-202 1 Oakland NE BLLVNEBLCMD  073H TELNYX LLC 644   2020-10-18   
531-202 2 Oakland NE OMAKNEYW1MD  939H COMMIO, LLC 644   2024-02-12   
531-202 3 Oakland NE OMAHNENWXPX  549E ONVOY, LLC - NE 644   2019-09-16   
531-202 4 Oakland NE OMAHNENWXPX  549E ONVOY, LLC - NE 644   2021-04-12   
531-202 5 Oakland NE OMAHNENWXPX  549E ONVOY, LLC - NE 644   2019-09-16   
531-202 6 Oakland NE OMAHNENWXPX  549E ONVOY, LLC - NE 644   2021-03-11   
531-202 7 Oakland NE OMAHNENWXJX  508J CENTURYLINK COMMUNICATIONS, LLC 644   2015-03-16   
531-202 8 Oakland NE OMAHNENWXPX  549E ONVOY, LLC - NE 644   2021-03-11   
531-202 9 Oakland NE OMAHNENWX6Y  073H TELNYX LLC 644   2021-06-04   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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