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: 301

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-301 A Collinsville IL COVLILCQXQX  829J PAETEC ITEL, LLC 520      
618-301 0 Collinsville IL STLTMOBOAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 520   2006-02-16   
618-301 1 Collinsville IL STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2006-03-10   
618-301 2 Collinsville IL STLTMOBOAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 520   2006-04-29   
618-301 3 Collinsville IL COVLILCQXQX  829J PAETEC ITEL, LLC 520   2002-11-01   
618-301 4 Collinsville IL COVLILCQXQX  829J PAETEC ITEL, LLC 520      
618-301 5 Collinsville IL STLSMO09DS1  7421 AT&T - LOCAL 520   2003-12-16   
618-301 6 Collinsville IL STLTMOBOAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 520   2006-04-29   
618-301 7 Collinsville IL STLTMOBOAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 520   2006-06-19   
618-301 8 Collinsville IL STLTMOBOAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 520   2006-06-19   
618-301 9 Collinsville IL STLTMOBOAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 520   2018-03-15   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.