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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
203-503 7 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-01-08   
203-503 8 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-01-08   
203-504 0 Stamford CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-04-15   
203-504 4 Stamford CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-02-28   
203-507 A New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-02-09   
203-507 0 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-04-13   
203-507 1 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-04-13   
203-507 3 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-507 4 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-507 5 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-507 6 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-507 7 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-507 8 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-507 9 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-508 0 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-06-13   
203-508 2 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-07-16   
203-508 3 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-07-16   
203-508 4 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-05-29   
203-508 5 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-01-01   
203-509 A Waterbury CT 5562 METROPCS, INC. 920      
203-509 0 Waterbury CT 5562 METROPCS, INC. 920      
203-509 1 Waterbury CT 5562 METROPCS, INC. 920      
203-509 2 Waterbury CT 5562 METROPCS, INC. 920      
203-509 3 Waterbury CT 5562 METROPCS, INC. 920      
203-509 4 Waterbury CT 5562 METROPCS, INC. 920      
203-509 5 Waterbury CT 5562 METROPCS, INC. 920      
203-509 6 Waterbury CT 5562 METROPCS, INC. 920      
203-509 7 Waterbury CT 5562 METROPCS, INC. 920      
203-509 8 Waterbury CT 5562 METROPCS, INC. 920      
203-509 9 Waterbury CT 5562 METROPCS, INC. 920      
203-510 A Waterbury CT 5562 METROPCS, INC. 920   2024-02-09   
203-510 0 Waterbury CT 5562 METROPCS, INC. 920      
203-510 1 Waterbury CT 5562 METROPCS, INC. 920      
203-510 2 Waterbury CT 5562 METROPCS, INC. 920      
203-510 3 Waterbury CT 5562 METROPCS, INC. 920      
203-510 4 Waterbury CT 5562 METROPCS, INC. 920      
203-510 5 Waterbury CT 5562 METROPCS, INC. 920      
203-510 6 Waterbury CT 5562 METROPCS, INC. 920      
203-510 7 Waterbury CT 5562 METROPCS, INC. 920      
203-510 8 Waterbury CT 5562 METROPCS, INC. 920      
203-510 9 Waterbury CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-512 A Danbury CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-514 1 Meriden CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2016-03-19   
203-515 A Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-02-09   
203-515 0 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-515 1 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-515 2 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-515 3 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-515 4 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-515 5 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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