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: 431

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-431 A Ottawa IL OTWAILOTDS0  9329 ILLINOIS BELL TEL CO 358      
815-431 0 Ottawa IL OTWAILOTDS0  9329 ILLINOIS BELL TEL CO 358      
815-431 1 Ottawa IL OTWAILOTDS0  9329 ILLINOIS BELL TEL CO 358      
815-431 2 Ottawa IL OTWAILOTDS0  9329 ILLINOIS BELL TEL CO 358      
815-431 3 Ottawa IL OTWAILOTDS0  9329 ILLINOIS BELL TEL CO 358      
815-431 4 Ottawa IL OTWAILOTDS0  9329 ILLINOIS BELL TEL CO 358      
815-431 5 Ottawa IL OTWAILOTDS0  9329 ILLINOIS BELL TEL CO 358      
815-431 6 Ottawa IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-12-23   
815-431 7 Ottawa IL   145J TERRA NOVA TELECOM INC. 358   2021-01-15   
815-431 8 Ottawa IL OTWAILOTDS0  9329 ILLINOIS BELL TEL CO 358      
815-431 9 Ottawa IL OTWAILOTDS0  9329 ILLINOIS BELL TEL CO 358      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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