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: 272

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-272 A Chino CA   624H ONVOY SPECTRUM, LLC 730   2025-03-21   
840-272 0 Chino CA   624H ONVOY SPECTRUM, LLC 730   2025-03-21   
840-272 1 Chino CA   6529 T-MOBILE USA, INC. 730   2025-04-05   
840-272 2 Chino CA   6529 T-MOBILE USA, INC. 730   2025-04-05   
840-272 3 Chino CA   6529 T-MOBILE USA, INC. 730   2025-04-05   
840-272 4 Chino CA   6529 T-MOBILE USA, INC. 730   2025-04-05   
840-272 5 Chino CA   6529 T-MOBILE USA, INC. 730   2025-04-05   
840-272 6 Chino CA   6529 T-MOBILE USA, INC. 730   2025-04-05   
840-272 7 Chino CA   6529 T-MOBILE USA, INC. 730   2025-04-05   
840-272 8 Chino CA   6529 T-MOBILE USA, INC. 730   2025-04-05   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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