Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 812 [Rate centres in NPA 812] [Dial plan for NPA 812]

NXX: 638

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
812-638 A Sullivan IN TRRHIN02SMD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 938      
812-638 0 Sullivan IN   073H TELNYX LLC 938   2022-08-20   
812-638 2 Sullivan IN   318J COMCAST IP PHONE, LLC 938   2013-09-18   
812-638 3 Sullivan IN   7440 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 938   2012-05-01   
812-638 4 Sullivan IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 938      
812-638 6 Sullivan IN   097D ONVOY, LLC - IN 938   2020-04-19   
812-638 7 Sullivan IN   508J CENTURYLINK COMMUNICATIONS, LLC 938   2017-06-12   
812-638 8 Sullivan IN   352E YMAX COMMUNICATIONS CORP. - IN 938   2011-04-06   
812-638 9 Sullivan IN   352E YMAX COMMUNICATIONS CORP. - IN 938   2011-04-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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