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.

NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

NXX: 521

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-521 A Brentwood NY NYCPNYYK9MD  8473 LEVEL 3 TELECOM OF NEW YORK, LP - NY 132      
631-521 0 Brentwood NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2004-05-02   
631-521 1 Brentwood NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2004-05-02   
631-521 2 Brentwood NY NYCPNYYK9MD  8473 LEVEL 3 TELECOM OF NEW YORK, LP - NY 132   2004-04-24   
631-521 3 Brentwood NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2004-05-02   
631-521 4 Brentwood NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2004-05-02   
631-521 5 Brentwood NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2004-05-02   
631-521 6 Brentwood NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2004-05-02   
631-521 7 Brentwood NY HCVLNYAHDS1  7126 CABLEVISION LIGHTPATH, INC. - NY 132   2004-06-07   
631-521 8 Brentwood NY HCVLNYAHDS1  7126 CABLEVISION LIGHTPATH, INC. - NY 132   2004-06-07   
631-521 9 Brentwood NY SYOSNYGNCM1  5562 METROPCS, INC. 132   2004-04-26   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.