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: 226

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-226 A Bolingbrook IL BGBKILBKDS0  9329 ILLINOIS BELL TEL CO 358      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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