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: CMDNNJCE55Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
856-799 7 Camden NJ 321J HD CARRIER LLC 222   2020-05-01   
856-799 8 Camden NJ 321J HD CARRIER LLC 222   2020-05-01   
856-799 9 Camden NJ 321J HD CARRIER LLC 222   2019-03-15   
856-846 5 Berlin NJ 321J HD CARRIER LLC 222   2020-05-01   
856-944 4 Vineland NJ 321J HD CARRIER LLC 222   2025-12-11   
856-944 5 Vineland NJ 321J HD CARRIER LLC 222   2025-12-11   

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

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