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.
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Switch: RVSDCAYAGT1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
951-992 8 Moreno CA 6529 T-MOBILE USA, INC. 730   2005-12-03   
951-999 2 Moreno CA 899D METROPCS NETWORKS, LLC 730   2011-03-20   
951-999 5 Moreno CA 899D METROPCS NETWORKS, LLC 730   2011-02-07   
951-999 7 Moreno CA 899D METROPCS NETWORKS, LLC 730   2011-03-14   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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