Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 331 [Rate centres in NPA 331] [Dial plan for NPA 331]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-244 A Naperville IL   224C ONVOY, LLC 358   2017-11-23   
331-244 0 Naperville IL   224C ONVOY, LLC 358   2017-11-23   
331-244 1 Naperville IL   224C ONVOY, LLC 358   2017-11-23   
331-244 2 Naperville IL   224C ONVOY, LLC 358   2017-11-23   
331-244 3 Naperville IL   224C ONVOY, LLC 358   2017-11-23   
331-244 4 Naperville IL   224C ONVOY, LLC 358   2017-11-23   
331-244 5 Naperville IL   224C ONVOY, LLC 358   2017-11-24   
331-244 6 Naperville IL   224C ONVOY, LLC 358   2017-11-24   
331-244 7 Naperville IL   224C ONVOY, LLC 358   2017-11-24   
331-244 8 Naperville IL   224C ONVOY, LLC 358   2017-11-24   
331-244 9 Naperville IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-12-05   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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