Local Calling Guide

Area code/prefix search

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

NXX: 249

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-249 A Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358      
331-249 0 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-01-26   
331-249 1 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-01-26   
331-249 2 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-07-07   
331-249 3 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-07-07   
331-249 4 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-07-07   
331-249 5 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-07-07   
331-249 6 Naperville IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2019-10-07   
331-249 7 Naperville IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2019-10-29   
331-249 8 Naperville IL CHCGILWUJMD  073H TELNYX LLC 358   2019-01-27   
331-249 9 Naperville IL CHCGIL24XMD  495J STRATUS NETWORKS 358   2020-09-26   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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