Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 840 [Rate centres in NPA 840] [Dial plan for NPA 840]

NXX: 286

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-286 A Arrowhead CA   6529 T-MOBILE USA, INC. 730   2026-01-19   
840-286 5 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2026-01-19   
840-286 6 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2026-01-19   
840-286 7 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2026-01-19   
840-286 8 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2026-01-19   
840-286 9 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2026-01-19   

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

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