Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 501 [Rate centres in NPA 501] [Dial plan for NPA 501]

NXX: 991

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
501-991 A Crystal Springs AR CRSPARMARS2  9533 SOUTHWESTERN BELL 528      
501-991 0 Crystal Springs AR   348F ONVOY, LLC - AR 528   2019-01-12   
501-991 1 Crystal Springs AR   9533 SOUTHWESTERN BELL 528      
501-991 2 Crystal Springs AR   516C AT&T CORP. 528   2011-04-25   
501-991 3 Crystal Springs AR   9533 SOUTHWESTERN BELL 528      
501-991 4 Crystal Springs AR   196F BANDWIDTH.COM CLEC, LLC - AR 528   2015-02-15   
501-991 5 Crystal Springs AR   348F ONVOY, LLC - AR 528   2017-03-27   
501-991 6 Crystal Springs AR   5179 LEVEL 3 COMMUNICATIONS, LLC - AR 528   2017-09-11   
501-991 7 Crystal Springs AR   508J CENTURYLINK COMMUNICATIONS LLC 528   2015-01-13   
501-991 8 Crystal Springs AR   348F ONVOY, LLC - AR 528   2019-01-12   
501-991 9 Crystal Springs AR   073H TELNYX LLC 528   2018-11-26   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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