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: HRBGPAGU8MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
223-240 A Harrisburg City Zone-1 PA 321J HD CARRIER LLC 226      
223-240 8 Harrisburg City Zone-1 PA 321J HD CARRIER LLC 226   2020-11-22   
223-240 9 Harrisburg City Zone-1 PA 321J HD CARRIER LLC 226   2020-11-22   
223-384 3 York PA 321J HD CARRIER LLC 226   2026-02-20   
223-384 4 York PA 321J HD CARRIER LLC 226   2026-02-20   
223-387 6 Lancaster PA 321J HD CARRIER LLC 226   2026-06-07   
223-387 7 Lancaster PA 321J HD CARRIER LLC 226   2026-06-07   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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