Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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San Mateo, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-954 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
650-954 9 OKLECAZV1MD  5562 METROPCS, INC. 722      

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Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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