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.

Clarington, OH

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
740-299 A   460K FIRST COMMUNICATIONS, LLC 324      
740-299 0 CLMBOHLTGMD  495J STRATUS NETWORKS 324      
740-299 1 CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-299 2 CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-299 3 CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-299 4 CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-299 5 CLMDOH44MMD  516J TON80 COMMUNICATIONS, LLC 324      
740-299 7 CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-299 8   515J IP HORIZON LLC 324      
740-299 9   624H ONVOY SPECTRUM, LLC 324      
740-458 A CATNOH45RS1  9321 OHIO BELL TEL CO 324      
740-458 0 CATNOH45RS1  9321 OHIO BELL TEL CO 324      
740-458 1 CATNOH45RS1  9321 OHIO BELL TEL CO 324      
740-458 8 CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-458 9   145J TERRA NOVA TELECOM INC. 324      
740-519 A   829J PAETEC ITEL, LLC 324      
740-519 0   829J PAETEC ITEL, LLC 324      
740-519 1 CLMDOH448MD  073H TELNYX LLC 324      
740-519 4 CLMBOH11XJZ  516C AT&T CORP. 324      
740-519 5 CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-519 7 CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324      
740-519 8 CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-519 9 CLMDOH44DS5  284F PEERLESS NETWORK OF OHIO, LLC - OH 324      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.