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: 370

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-370 A Northbrook West IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
630-370 0 Northbrook West IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
630-370 1 Northbrook West IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
630-370 2 Northbrook West IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
630-370 3 Northbrook West IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
630-370 7 Northbrook West IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      

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

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