Local Calling Guide

Area code/prefix search

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El Cajon, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
858-899 7 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2021-03-07   
858-899 8 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2021-03-07   
858-899 9 SNDGCA0263Z  965H FRACTEL, LLC 732   2021-03-06   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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