Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 270

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-270 A Roscoe IL RCFRILRTXQY  792K CHARTER IP ENABLED SERVICES, LLC 360   2025-01-16   
815-270 0 Roscoe IL   792K CHARTER IP ENABLED SERVICES, LLC 360   2007-06-18   
815-270 1 Roscoe IL   792K CHARTER IP ENABLED SERVICES, LLC 360   2010-08-05   
815-270 2 Roscoe IL   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 360   2017-10-16   
815-270 3 Roscoe IL   224C ONVOY, LLC 360   2019-09-06   
815-270 4 Roscoe IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 360   2017-10-02   
815-270 5 Roscoe IL   224C ONVOY, LLC 360   2018-07-30   
815-270 6 Roscoe IL   224C ONVOY, LLC 360   2019-09-06   
815-270 7 Roscoe IL   508J CENTURYLINK COMMUNICATIONS, LLC 360   2016-02-20   
815-270 8 Roscoe IL   224C ONVOY, LLC 360   2018-11-05   
815-270 9 Roscoe IL   224C ONVOY, LLC 360   2020-05-21   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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