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: 283

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-283 A Arrowhead CA   649C ONVOY, LLC - CA 730   2025-11-09   
840-283 0 Arrowhead CA   649C ONVOY, LLC - CA 730   2025-11-09   
840-283 1 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2025-11-10   
840-283 2 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2025-11-10   
840-283 3 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2025-11-10   
840-283 4 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2025-11-10   
840-283 5 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2025-11-10   
840-283 6 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2025-11-10   
840-283 7 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2025-12-04   
840-283 8 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2025-12-04   
840-283 9 Arrowhead CA   6529 T-MOBILE USA, INC. 730   2025-12-04   

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

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