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: JHCYTNXCXYX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
423-952 9 Johnson City TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2020-04-04   
423-979 9 Johnson City TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-09-05   
423-992 0 Bristol TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-04-25   
423-992 1 Bristol TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-04-25   
423-992 3 Bristol TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-06-20   
423-992 4 Bristol TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-06-20   
423-992 5 Bristol TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-06-20   
423-992 6 Bristol TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-06-20   
423-992 7 Bristol TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-06-20   
423-992 8 Bristol TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-06-20   
423-992 9 Bristol TN 6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-04-25   

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

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