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.
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Switch: NWRKNJ021KD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
973-810 9 Hopatcong NJ 7142 TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 224      
973-813 A Mendham NJ 7142 TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 224      
973-813 6 Mendham NJ 7142 TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 224      

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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