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 |
203-399
| 3 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2013-11-15 |
|
203-399
| 4 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2013-11-15 |
|
203-399
| 5 |
Stamford |
CT |
SMFRCTDSDS0 |
7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
920 |
|
|
|
203-399
| 6 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2013-11-15 |
|
203-399
| 7 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2013-11-15 |
|
203-399
| 8 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2013-11-15 |
|
203-399
| 9 |
Stamford |
CT |
SMFRCTATXMD |
3083 PAETEC COMMUNICATIONS, LLC - CT |
920 |
|
2014-10-16 |
|
203-400
| A |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
203-400
| 0 |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
203-400
| 1 |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
203-400
| 2 |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
203-400
| 3 |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
203-400
| 4 |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
203-400
| 5 |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2004-03-17 |
|
203-400
| 6 |
Trumbull |
CT |
SMFRCTDSDS0 |
7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
920 |
|
2003-06-18 |
|
203-400
| 7 |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2004-05-08 |
|
203-400
| 8 |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2004-05-08 |
|
203-400
| 9 |
Trumbull |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2004-07-11 |
|
203-401
| A |
New Haven |
CT |
NWHNCT03DS3 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-401
| 0 |
New Haven |
CT |
NWHNCT03DS3 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-401
| 1 |
New Haven |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2003-03-16 |
|
203-401
| 2 |
New Haven |
CT |
NWHNCT03DS3 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-401
| 3 |
New Haven |
CT |
NWHNCT03DS3 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-401
| 4 |
New Haven |
CT |
NWHNCT03DS3 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-401
| 5 |
New Haven |
CT |
NWHNCT03DS3 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-401
| 6 |
New Haven |
CT |
NWHNCT03DS3 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-401
| 7 |
New Haven |
CT |
NWHNCT03DS3 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-401
| 8 |
New Haven |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2002-07-16 |
|
203-401
| 9 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2005-09-05 |
|
203-402
| A |
Huntington |
CT |
HNTNCT00DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-402
| 0 |
Huntington |
CT |
HNTNCT00DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-402
| 1 |
Huntington |
CT |
HNTNCT00DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-402
| 2 |
Huntington |
CT |
NWHNCT030MD |
3863 CTC COMMUNICATIONS CORP. - CT |
920 |
|
2008-03-26 |
|
203-402
| 3 |
Huntington |
CT |
HNTNCT00DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-402
| 4 |
Huntington |
CT |
HNTNCT00DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-402
| 5 |
Huntington |
CT |
HNTNCT00DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-402
| 6 |
Huntington |
CT |
HNTNCT00DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-402
| 7 |
Huntington |
CT |
HNTNCT00DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
203-402
| 8 |
Huntington |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2010-09-09 |
|
203-402
| 9 |
Huntington |
CT |
MDTWCTNIGT1 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2011-06-15 |
|
203-403
| A |
Ridgefield |
CT |
HRFRCTCRDS0 |
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
|
|
203-403
| 0 |
Ridgefield |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2014-04-19 |
|
203-403
| 1 |
Ridgefield |
CT |
HRFRCTCRDS0 |
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
|
|
203-403
| 2 |
Ridgefield |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2008-05-13 |
|
203-403
| 3 |
Ridgefield |
CT |
HRFRCTCR3MD |
318J COMCAST IP PHONE, LLC |
920 |
|
2008-12-13 |
|
203-403
| 4 |
Ridgefield |
CT |
SMFRCTATXMD |
3083 PAETEC COMMUNICATIONS, LLC - CT |
920 |
|
2004-09-28 |
|
203-403
| 5 |
Ridgefield |
CT |
NWHNCT02GT0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
2007-09-07 |
|
203-403
| 6 |
Ridgefield |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2011-02-26 |
|
203-403
| 7 |
Ridgefield |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2012-06-08 |
|
203-403
| 8 |
Ridgefield |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2013-11-02 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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