Local Calling Guide
Area code/prefix search
NPA: 203
[Rate centres in NPA 203]
[Dial plan for NPA 203]
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NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
203-304
| 7 |
Newtown |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2005-12-19 |
|
203-304
| 8 |
Newtown |
CT |
NWHNCT02GT0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
2007-09-07 |
|
203-304
| 9 |
Newtown |
CT |
WLMNCT130MD |
777C CHARTER FIBERLINK CT-CCO, LLC - CT |
920 |
|
2007-12-09 |
|
203-305
| A |
Ansonia-Derby |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
203-306
| A |
Milford |
CT |
HRFRCT0370Z |
2706 CHOICE ONE COMMUNICATIONS, INC. - CT |
920 |
|
|
|
203-306
| 0 |
Milford |
CT |
HRFRCT0370Z |
2706 CHOICE ONE COMMUNICATIONS, INC. - CT |
920 |
|
|
|
203-306
| 1 |
Milford |
CT |
HRFRCT0370Z |
2706 CHOICE ONE COMMUNICATIONS, INC. - CT |
920 |
|
|
|
203-306
| 2 |
Milford |
CT |
HRFRCT0370Z |
2706 CHOICE ONE COMMUNICATIONS, INC. - CT |
920 |
|
|
|
203-306
| 3 |
Milford |
CT |
HRFRCT0370Z |
2706 CHOICE ONE COMMUNICATIONS, INC. - CT |
920 |
|
|
|
203-306
| 4 |
Milford |
CT |
HRFRCT0370Z |
2706 CHOICE ONE COMMUNICATIONS, INC. - CT |
920 |
|
|
|
203-306
| 5 |
Milford |
CT |
HRFRCTASDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
920 |
|
2004-08-27 |
|
203-306
| 6 |
Milford |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
2008-10-16 |
|
203-306
| 7 |
Milford |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
2004-02-09 |
|
203-306
| 8 |
Milford |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
2002-12-30 |
|
203-306
| 9 |
Milford |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
2005-12-29 |
|
203-307
| A |
Fairfield |
CT |
SMFRCTDSDS0 |
7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
920 |
|
|
|
203-307
| 0 |
Fairfield |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2011-05-27 |
|
203-307
| 1 |
Fairfield |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2005-12-19 |
|
203-307
| 2 |
Fairfield |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2005-12-19 |
|
203-307
| 3 |
Fairfield |
CT |
NWHNCT030MD |
3722 CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC - CT |
920 |
|
2005-12-19 |
|
203-307
| 4 |
Fairfield |
CT |
SMFRCT0162Z |
3863 CTC COMMUNICATIONS CORP. - CT |
920 |
|
2006-09-21 |
|
203-307
| 5 |
Fairfield |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2010-03-05 |
|
203-307
| 6 |
Fairfield |
CT |
SMFRCTDSDS0 |
7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
920 |
|
2005-03-24 |
|
203-307
| 7 |
Fairfield |
CT |
SMFRCTDSDS0 |
7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
920 |
|
2005-03-24 |
|
203-307
| 8 |
Fairfield |
CT |
SMFRCTDSDS0 |
7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
920 |
|
2005-03-24 |
|
203-307
| 9 |
Fairfield |
CT |
SMFRCTDSDS0 |
7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
920 |
|
2005-03-24 |
|
203-308
| A |
Ansonia-Derby |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
203-308
| 0 |
Ansonia-Derby |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2008-12-28 |
|
203-308
| 1 |
Ansonia-Derby |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2009-04-11 |
|
203-308
| 2 |
Ansonia-Derby |
CT |
HRFRCTCR3MD |
318J COMCAST IP PHONE, LLC |
920 |
|
2010-08-08 |
|
203-308
| 3 |
Ansonia-Derby |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2009-07-28 |
|
203-308
| 4 |
Ansonia-Derby |
CT |
SMFRCTATXMD |
3083 PAETEC COMMUNICATIONS, LLC - CT |
920 |
|
2009-10-29 |
|
203-308
| 5 |
Ansonia-Derby |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2010-09-09 |
|
203-308
| 6 |
Ansonia-Derby |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2010-09-09 |
|
203-308
| 7 |
Ansonia-Derby |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2010-08-07 |
|
203-308
| 8 |
Ansonia-Derby |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2010-04-01 |
|
203-308
| 9 |
Ansonia-Derby |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2010-01-21 |
|
203-309
| A |
Darien |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
203-309
| 0 |
Darien |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2008-03-10 |
|
203-309
| 1 |
Darien |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2014-04-19 |
|
203-309
| 2 |
Darien |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2010-08-07 |
|
203-309
| 3 |
Darien |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2012-06-02 |
|
203-309
| 4 |
Darien |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2012-07-29 |
|
203-309
| 5 |
Darien |
CT |
NRWLCT028MD |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2011-08-19 |
|
203-309
| 6 |
Darien |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2012-09-07 |
|
203-309
| 7 |
Darien |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
2007-11-02 |
|
203-309
| 8 |
Darien |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
2007-11-02 |
|
203-309
| 9 |
Darien |
CT |
|
5562 METROPCS, INC. |
920 |
|
2007-11-02 |
|
203-310
| A |
New Canaan |
CT |
SMFRCTDSDS0 |
7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
920 |
|
|
|
203-310
| 0 |
New Canaan |
CT |
SMFRCTDSDS0 |
7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
920 |
|
2003-06-01 |
|
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Last updated: Wed, 07 Feb 2024 04:12:25 UTC
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