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: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-954 5 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-954 6 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-954 7 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-954 8 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-954 9 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-955 A Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 0 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 1 Fairfield CT NRWLCT028MD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-955 2 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 3 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 4 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 5 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 6 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 7 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 8 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 9 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-956 A Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 0 Norwalk CT NRWLCT028MD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 1 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 2 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 3 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 4 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 5 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 6 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 7 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 8 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 9 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-957 A Norwalk CT NRWLCT02PMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-957 0 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-957 1 Norwalk CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-957 2 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-957 3 Norwalk CT NRWLCT028MD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-957 4 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-957 5 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-957 6 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-957 7 Norwalk CT NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920      
203-957 8 Norwalk CT NRWLCT028MD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-957 9 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-960 A Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 0 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 1 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 2 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 3 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 4 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 5 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 6 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 7 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 8 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 9 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-961 A Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 0 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 1 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 2 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 3 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-961 4 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 5 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 6 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 7 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 8 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 9 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-962 A Stamford CT SMFRCT02DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-962 0 Stamford CT SMFRCT02DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-962 1 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 2 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 3 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 4 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 5 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 6 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 7 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 8 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 9 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-963 A Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 0 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-963 1 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 2 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 3 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 4 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 5 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 6 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 7 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 8 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 9 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-964 A Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-964 0 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-964 1 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-964 2 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-964 3 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-964 4 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-964 5 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-964 6 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-964 7 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-964 8 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-964 9 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-965 A Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-965 0 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-965 1 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-965 2 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-965 3 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-965 4 Stamford CT SMFRCT0162Z  3863 CTC COMMUNICATIONS CORP. - CT 920      
203-965 5 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.