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.

OCN: 4290 STPCS JOINT VENTURE, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
956-993 3 Brownsville TX   568   2025-07-10   
956-993 4 Brownsville TX   568   2025-07-10   
956-993 5 Brownsville TX   568   2025-07-10   
956-993 6 Brownsville TX   568   2025-07-10   
956-993 7 Brownsville TX   568   2025-07-10   
956-993 8 Brownsville TX   568   2025-06-27   
956-993 9 Brownsville TX   568   2025-06-27   
956-997 1 Mission TX   568   2015-11-30   
956-998 1 Weslaco TX   568   2013-01-12   
956-998 2 Weslaco TX   568   2013-01-12   

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Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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