Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 630 [Rate centres in NPA 630] [Dial plan for NPA 630]

NXX: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-678 A Lombard IL LBRDILLMDS0  9329 ILLINOIS BELL TEL CO 358      
630-678 0 Lombard IL   9329 ILLINOIS BELL TEL CO 358      
630-678 1 Lombard IL   9329 ILLINOIS BELL TEL CO 358      
630-678 2 Lombard IL   9329 ILLINOIS BELL TEL CO 358      
630-678 3 Lombard IL   495J STRATUS NETWORKS 358   2020-10-10   
630-678 4 Lombard IL   9329 ILLINOIS BELL TEL CO 358      
630-678 6 Lombard IL   9329 ILLINOIS BELL TEL CO 358      
630-678 7 Lombard IL   046L CLEAR RATE COMMUNICATIONS, LLC 358   2012-06-10   
630-678 8 Lombard IL   9329 ILLINOIS BELL TEL CO 358      
630-678 9 Lombard IL   9329 ILLINOIS BELL TEL CO 358      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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