Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: NYCMNY37UMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
631-202 4 Ronkonkoma NY 321J HD CARRIER LLC 132   2016-08-22   
631-202 5 Ronkonkoma NY 321J HD CARRIER LLC 132   2016-08-22   
631-202 6 Ronkonkoma NY 321J HD CARRIER LLC 132   2016-08-22   
631-250 0 St James NY 321J HD CARRIER LLC 132   2014-08-01   
631-290 2 Babylon NY 321J HD CARRIER LLC 132   2016-08-22   
631-290 3 Babylon NY 321J HD CARRIER LLC 132   2016-08-22   
631-290 4 Babylon NY 321J HD CARRIER LLC 132   2016-08-22   
631-290 5 Babylon NY 321J HD CARRIER LLC 132   2016-08-22   
631-307 3 Patchogue NY 321J HD CARRIER LLC 132   2014-08-01   
631-315 4 Mattituck NY 321J HD CARRIER LLC 132   2014-08-01   
631-326 3 Commack NY 321J HD CARRIER LLC 132   2014-08-01   
631-341 5 Yaphank NY 321J HD CARRIER LLC 132   2014-08-02   
631-350 3 Huntington NY 321J HD CARRIER LLC 132   2014-08-01   
631-364 4 Stony Brook NY 321J HD CARRIER LLC 132   2014-08-01   
631-483 9 Montauk Point NY 321J HD CARRIER LLC 132   2014-08-01   
631-500 3 Water Mill NY 321J HD CARRIER LLC 132   2014-08-01   
631-518 5 Bay Shore NY 321J HD CARRIER LLC 132   2014-08-01   
631-526 5 Babylon NY 321J HD CARRIER LLC 132   2016-08-22   
631-538 3 Selden NY 321J HD CARRIER LLC 132   2014-08-01   
631-542 4 Ronkonkoma NY 321J HD CARRIER LLC 132   2014-08-01   
631-568 A Amityville NY 321J HD CARRIER LLC 132      
631-568 5 Amityville NY 321J HD CARRIER LLC 132   2014-07-31   
631-573 5 Sayville NY 321J HD CARRIER LLC 132   2014-08-01   
631-599 5 Riverhead NY 321J HD CARRIER LLC 132   2014-08-01   
631-620 6 Babylon NY 321J HD CARRIER LLC 132   2014-08-01   
631-633 3 Bellport NY 321J HD CARRIER LLC 132   2014-08-01   
631-637 7 Brentwood NY 321J HD CARRIER LLC 132   2014-08-01   
631-652 2 Smithtown NY 321J HD CARRIER LLC 132   2014-08-01   
631-659 6 Cold Spring Harbor NY 321J HD CARRIER LLC 132   2016-08-22   
631-659 7 Cold Spring Harbor NY 321J HD CARRIER LLC 132   2016-08-22   
631-659 9 Cold Spring Harbor NY 321J HD CARRIER LLC 132   2016-08-22   
631-674 5 Midland NY 321J HD CARRIER LLC 132   2014-08-01   
631-743 3 Port Jefferson NY 321J HD CARRIER LLC 132   2014-08-01   
631-763 0 Cold Spring Harbor NY 321J HD CARRIER LLC 132   2016-08-22   
631-800 5 Southampton NY 321J HD CARRIER LLC 132   2014-08-01   
631-832 2 Bayport NY 321J HD CARRIER LLC 132   2014-08-01   
631-837 7 Northport NY 321J HD CARRIER LLC 132   2014-08-01   
631-856 6 Hampton Bays NY 321J HD CARRIER LLC 132   2014-08-01   
631-857 8 Cold Spring Harbor NY 321J HD CARRIER LLC 132   2014-08-01   
631-858 4 West Commack NY 321J HD CARRIER LLC 132   2014-08-01   
631-881 1 Central Islip NY 321J HD CARRIER LLC 132   2014-08-01   
631-888 7 Lindenhurst NY 321J HD CARRIER LLC 132   2014-08-01   
631-931 1 East Hampton NY 321J HD CARRIER LLC 132   2016-07-23   
631-960 9 Islip NY 321J HD CARRIER LLC 132   2014-08-01   
631-973 9 Kings Park NY 321J HD CARRIER LLC 132   2014-08-01   
631-992 9 Deer Park NY 321J HD CARRIER LLC 132   2014-08-01   
646-357 5 New York City Zone 01 NY 321J HD CARRIER LLC 132   2026-01-11   
646-768 6 New York City Zone 01 NY 321J HD CARRIER LLC 132   2014-01-24   
646-928 6 New York City Zone 01 NY 321J HD CARRIER LLC 132   2026-01-11   
845-269 4 Haverstraw NY 321J HD CARRIER LLC 132   2014-08-01   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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