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: SMFRCTPU4MD

<< 1 2 3 4 5 6 7 8 9 10 11 12 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
860-272 4 Enfield CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-05-16   
860-288 A Manchester CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
860-288 1 Manchester CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-01-14   
860-288 2 Manchester CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-07   
860-288 4 Manchester CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2003-08-12   
860-288 5 Manchester CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-01-17   
860-288 8 Manchester CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2010-11-18   
860-295 2 East Hampton CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-01-31   
860-316 2 Middletown CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-05-19   
860-317 7 Plainfield CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-07-26   
860-319 0 Norwich CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-06-17   
860-322 5 Deep River CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-03-10   
860-323 0 Simsbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-08-15   
860-331 8 Hartford CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-07-12   
860-333 1 New London CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-07-25   
860-333 6 New London CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2010-11-18   
860-337 7 Columbia CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-01-12   
860-339 0 Old Saybrook CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-05-19   
860-341 4 Storrs CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-09-12   
860-348 8 New Britain CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-01-10   
860-351 2 Plainville CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-10-29   
860-352 5 Canton CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-05-13   
860-356 0 New Britain CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-01-17   
860-356 2 New Britain CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-07   
860-356 4 New Britain CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2003-01-06   
860-357 5 New Britain CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-05-16   
860-357 6 New Britain CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-08-27   
860-359 4 Columbia CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-07-17   
860-365 8 East Hampton CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-12-12   
860-367 8 Norwich CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2002-07-16   
860-373 9 Norwich CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-05-16   
860-378 8 Southington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-05-19   
860-381 4 Ledyard CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-07-17   
860-381 6 Ledyard CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-01-28   
860-383 0 Norwich CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-09-22   
860-383 8 Norwich CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-12-09   
860-386 9 Windsor Locks CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-10-01   
860-391 0 Old Saybrook CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-09-22   
860-393 7 Litchfield CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2014-07-09   
860-394 4 Enfield CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-02-02   
860-398 A Middletown CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
860-398 4 Middletown CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
860-398 5 Middletown CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-01-14   
860-398 6 Middletown CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-07   
860-398 7 Middletown CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2014-10-27   
860-410 4 Plainville CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-09-12   
860-415 4 Mystic CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-09-12   
860-415 8 Mystic CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-12-12   
860-419 A Cornwall CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
860-419 8 Cornwall CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-04-07   

<< 1 2 3 4 5 6 7 8 9 10 11 12 >>

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.