Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

NXX: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-639 A Brentwood NY HNTNNYSUDS2  7140 TC SYSTEMS, INC. - NY 132      
631-639 0 Brentwood NY   5562 METROPCS, INC. 132   2010-06-18   
631-639 1 Brentwood NY   5562 METROPCS, INC. 132   2010-06-18   
631-639 2 Brentwood NY   7140 TC SYSTEMS, INC. - NY 132   2009-02-27   
631-639 3 Brentwood NY   7140 TC SYSTEMS, INC. - NY 132   2009-09-14   
631-639 4 Brentwood NY   5562 METROPCS, INC. 132   2010-06-18   
631-639 5 Brentwood NY   5562 METROPCS, INC. 132   2010-06-26   
631-639 6 Brentwood NY   5562 METROPCS, INC. 132   2010-06-26   
631-639 7 Brentwood NY   5562 METROPCS, INC. 132   2010-06-26   
631-639 8 Brentwood NY   5562 METROPCS, INC. 132   2010-02-26   
631-639 9 Brentwood NY   5562 METROPCS, INC. 132   2010-02-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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