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: 991

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-991 A Sycamore IL DKLBILRSNMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 364      
815-991 0 Sycamore IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 364   2019-12-15   
815-991 1 Sycamore IL   224C ONVOY, LLC 364   2018-10-01   
815-991 2 Sycamore IL   972C DIGITAL NETWORK ACCESS COMMUNICATIONS, INC. - IL 364   2005-10-17   
815-991 3 Sycamore IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 364   2019-03-29   
815-991 4 Sycamore IL   224C ONVOY, LLC 364   2019-09-07   
815-991 5 Sycamore IL   318J COMCAST IP PHONE LLC 364   2005-07-01   
815-991 6 Sycamore IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 364   2017-02-23   
815-991 7 Sycamore IL   259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-06   
815-991 8 Sycamore IL   259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-06   
815-991 9 Sycamore IL   318J COMCAST IP PHONE LLC 364   2008-01-14   

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

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