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: 551

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-551 A Collinsville IL STLSMOGZDS5  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 0 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 1 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 2 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 3 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 4 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 5 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 6 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 7 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 8 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      
618-551 9 Collinsville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.