Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 646 [Rate centres in NPA 646] [Dial plan for NPA 646]

NXX: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
646-637 A New York City Zone 01 NY NYCMNY54DS2  7140 TC SYSTEMS, INC. - NY 132      
646-637 0 New York City Zone 01 NY NYCMNY54DS2  7140 TC SYSTEMS, INC. - NY 132      
646-637 1 New York City Zone 01 NY NYCMNYAACMM  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2003-06-01   
646-637 2 New York City Zone 01 NY NYCMNYAACMM  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2003-06-01   
646-637 3 New York City Zone 01 NY NYCMNYAACMM  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2003-06-01   
646-637 4 New York City Zone 01 NY NYCMNYAACMM  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2003-10-06   
646-637 5 New York City Zone 01 NY NYCMNYAACMM  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2003-06-01   
646-637 6 New York City Zone 01 NY NYCMNYAACMM  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2003-06-01   
646-637 7 New York City Zone 01 NY NYCMNYAACMM  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2003-06-15   
646-637 8 New York City Zone 01 NY NYCMNYAACMM  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2003-06-15   
646-637 9 New York City Zone 01 NY NYCMNY54DS2  7140 TC SYSTEMS, INC. - NY 132      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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