Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-666 A Collinsville IL STLSMOWQDS2  224C ONVOY, LLC 520      
618-666 0 Collinsville IL STLSMOWQDS2  224C ONVOY, LLC 520      
618-666 1 Collinsville IL NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-666 2 Collinsville IL STLTMOBOAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 520      
618-666 3 Collinsville IL STLTMOBOAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 520      
618-666 4 Collinsville IL COVLILCQXIX  984E BANDWIDTH.COM CLEC, LLC - IL 520      
618-666 5 Collinsville IL STLSMOGZ8MD  939H COMMIO, LLC 520      
618-666 6 Collinsville IL STLSMOWQDS2  224C ONVOY, LLC 520      
618-666 7 Collinsville IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-666 8 Collinsville IL STLSMOGZHMD  516J TON80 COMMUNICATIONS, LLC 520      
618-666 9 Collinsville IL STLSMOGZ00Z  490J DISH WIRELESS, LLC 520      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.