Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Mendham, NJ

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
973-543 A MNHMNJMDRP0  9206 VERIZON NEW JERSEY, INC. 224      
973-813 A NWRKNJ021KD  7142 TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 224      
973-813 0   829J PAETEC ITEL, LLC 224   2002-03-01   
973-813 1 WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224   2006-08-22   
973-813 2 WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224   2006-01-05   
973-813 3 NBWKNJNBX3Z  318J COMCAST IP PHONE, LLC 224   2007-12-31   
973-813 4 JRCYNJ65DS4  264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 224   2010-08-27   
973-813 5 NWRKNJ0248Z  118F BANDWIDTH.COM CLEC, LLC - NJ 224   2009-11-13   
973-813 6 NWRKNJ021KD  7142 TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 224      
973-813 7 WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224   2004-04-11   
973-813 8 BLVLNJAADS0  8407 COOPERATIVE COMMUNICATIONS, INC. 224   2002-03-27   
973-813 9 NWRKNJ0248Z  118F BANDWIDTH.COM CLEC, LLC - NJ 224   2010-08-27   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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