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.

Switch: NWRKNJ0298Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
973-662 5 Nutley NJ 321J HD CARRIER LLC 224   2016-05-19   
973-798 3 Nutley NJ 321J HD CARRIER LLC 224   2016-05-19   
973-798 5 Nutley NJ 321J HD CARRIER LLC 224   2016-05-19   
973-840 3 Caldwell NJ 321J HD CARRIER LLC 224   2016-05-19   
973-922 5 Nutley NJ 321J HD CARRIER LLC 224   2016-05-19   
973-922 7 Nutley NJ 321J HD CARRIER LLC 224   2016-05-19   
973-924 3 Millburn NJ 321J HD CARRIER LLC 224   2016-05-19   

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Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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