Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 640 [Rate centres in NPA 640] [Dial plan for NPA 640]

NXX: 234

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
640-234 A Plainsboro NJ CMDNNJCECM2  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 222      
640-234 0 Plainsboro NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2023-10-21   
640-234 1 Plainsboro NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2024-03-01   
640-234 2 Plainsboro NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2024-04-05   
640-234 3 Plainsboro NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2024-04-05   
640-234 4 Plainsboro NJ   637C ONVOY, LLC - NJ 222   2025-02-02   
640-234 5 Plainsboro NJ   637C ONVOY, LLC - NJ 222   2025-04-13   
640-234 7 Plainsboro NJ CMDNNJCEXFZ  264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 222   2023-09-28   
640-234 8 Plainsboro NJ CMDNNJCECM2  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 222   2022-10-22   
640-234 9 Plainsboro NJ CMDNNJCECM2  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 222   2022-10-22   

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

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