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: GOLTCACEBMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
820-236 3 Santa Barbara CA 6010 NEW CINGULAR WIRELESS PCS, LLC 740   2025-01-06   
820-236 4 Santa Barbara CA 6010 NEW CINGULAR WIRELESS PCS, LLC 740   2025-01-06   
820-236 5 Santa Barbara CA 6010 NEW CINGULAR WIRELESS PCS, LLC 740   2025-01-06   
820-236 6 Santa Barbara CA 6010 NEW CINGULAR WIRELESS PCS, LLC 740   2025-01-06   
820-236 7 Santa Barbara CA 6010 NEW CINGULAR WIRELESS PCS, LLC 740   2025-01-06   
820-236 8 Santa Barbara CA 6010 NEW CINGULAR WIRELESS PCS, LLC 740   2025-01-06   
820-236 9 Santa Barbara CA 6010 NEW CINGULAR WIRELESS PCS, LLC 740   2025-01-06   

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Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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