Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: NYCMNY37UMD

<< 1 2 3 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
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   
631-341 5 Yaphank NY 321J HD CARRIER LLC 132   2014-08-02   
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   
631-518 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   
631-620 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   
631-856 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   
631-960 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   
845-363 5 Brewster NY 321J HD CARRIER LLC 132   2013-04-05   
845-400 3 Spring Valley NY 321J HD CARRIER LLC 132   2016-08-22   
845-400 7 Spring Valley NY 321J HD CARRIER LLC 132   2014-08-01   
845-403 2 Spring Valley NY 321J HD CARRIER LLC 132   2016-08-22   
845-403 3 Spring Valley NY 321J HD CARRIER LLC 132   2016-08-22   
845-403 4 Spring Valley NY 321J HD CARRIER LLC 132   2016-08-22   
845-403 5 Spring Valley NY 321J HD CARRIER LLC 132   2016-08-22   
845-422 4 New City NY 321J HD CARRIER LLC 132   2014-08-01   
845-600 7 Mahopac NY 321J HD CARRIER LLC 132   2014-08-01   
845-630 3 Carmel NY 321J HD CARRIER LLC 132   2016-08-22   
845-630 4 Carmel NY 321J HD CARRIER LLC 132   2016-08-22   
845-630 6 Carmel NY 321J HD CARRIER LLC 132   2016-08-22   
845-643 6 Nyack NY 321J HD CARRIER LLC 132   2014-08-01   
914-300 5 Westchester Zone 3 NY 321J HD CARRIER LLC 132   2016-08-19   
914-300 6 Westchester Zone 3 NY 321J HD CARRIER LLC 132   2016-08-19   
914-300 7 Westchester Zone 3 NY 321J HD CARRIER LLC 132   2016-08-19   

<< 1 2 3 >>

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.