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: 552

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-552 A Plano IL PLANILPORS0  9329 ILLINOIS BELL TEL CO 358      
630-552 0 Plano IL   9329 ILLINOIS BELL TEL CO 358      
630-552 1 Plano IL   9329 ILLINOIS BELL TEL CO 358      
630-552 2 Plano IL   9329 ILLINOIS BELL TEL CO 358      
630-552 3 Plano IL   9329 ILLINOIS BELL TEL CO 358      
630-552 4 Plano IL   9329 ILLINOIS BELL TEL CO 358      
630-552 5 Plano IL   6529 T-MOBILE USA, INC. 358   2007-07-27   
630-552 6 Plano IL   224C ONVOY, LLC 358   2014-09-07   
630-552 7 Plano IL   9329 ILLINOIS BELL TEL CO 358      
630-552 8 Plano IL   9329 ILLINOIS BELL TEL CO 358      
630-552 9 Plano IL   9329 ILLINOIS BELL TEL CO 358      

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

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