Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 908

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-908 A Alton IL NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-908 0 Alton IL   224C ONVOY, LLC 520   2023-08-12   
618-908 1 Alton IL   224C ONVOY, LLC 520   2023-08-12   
618-908 2 Alton IL   224C ONVOY, LLC 520   2023-08-12   
618-908 3 Alton IL   224C ONVOY, LLC 520   2023-08-12   
618-908 4 Alton IL   224C ONVOY, LLC 520   2023-08-12   
618-908 5 Alton IL   478J NUSO, LLC 520   2023-12-03   
618-908 6 Alton IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2023-09-02   
618-908 7 Alton IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2023-05-27   
618-908 8 Alton IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2023-01-22   
618-908 9 Alton IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2023-01-22   

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

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