Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 317 [Rate centres in NPA 317] [Dial plan for NPA 317]

NXX: 855

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
317-855 A Oaklandon IN IPLUINJGDS0  7440 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 336      
317-855 0 Oaklandon IN IPLSIN01XNY  105F BANDWIDTH.COM CLEC, LLC - IN 336   2010-02-21   
317-855 1 Oaklandon IN IPLTINUM3MD  318J COMCAST IP PHONE, LLC 336   2012-06-30   
317-855 2 Oaklandon IN MCCRINXADS2  7459 HANCOCK COMMUNICATIONS, INC. - IN 336   2007-11-15   
317-855 3 Oaklandon IN IPLSINATJMD  516C AT&T CORP. 336   2007-03-05   
317-855 4 Oaklandon IN   045L BHN IP ENABLED SERVICES, LLC 336   2007-10-06   
317-855 5 Oaklandon IN IPLSINATKMD  7314 TELEPORT COMMUNICATIONS AMERICA, LLC - IN 336   2007-11-03   
317-855 6 Oaklandon IN IPLWIN75XIX  829J PAETEC ITEL, LLC 336   2010-02-05   
317-855 7 Oaklandon IN IPLTINUM3MD  318J COMCAST IP PHONE, LLC 336   2006-06-22   
317-855 8 Oaklandon IN IPLSIN01XNY  105F BANDWIDTH.COM CLEC, LLC - IN 336   2008-11-24   
317-855 9 Oaklandon IN IPLUINJGDS0  7440 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 336   2006-01-20   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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