Local Calling Guide
Area code/prefix search
Stamford, CT
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 203-428
| 4 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2004-07-14 |
|
| 203-428
| 5 |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2005-09-15 |
|
| 203-428
| 6 |
NWHNCT02GT0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
2006-07-07 |
|
| 203-428
| 7 |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2007-09-10 |
|
| 203-428
| 8 |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2005-08-22 |
|
| 203-428
| 9 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-01-01 |
|
| 203-461
| A |
SMFRCT02DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-461
| 0 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
| 203-461
| 1 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
| 203-461
| 2 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2012-11-26 |
|
| 203-461
| 3 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2013-10-01 |
|
| 203-461
| 4 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
| 203-461
| 5 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
| 203-461
| 6 |
SMFRCT02DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-461
| 7 |
SMFRCT02DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-461
| 8 |
SMFRCT02DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-461
| 9 |
SMFRCT02DS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-462
| A |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-487
| A |
|
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-487
| 0 |
|
829J PAETEC ITEL, LLC |
920 |
|
2001-05-17 |
|
| 203-487
| 1 |
|
829J PAETEC ITEL, LLC |
920 |
|
2002-09-10 |
|
| 203-487
| 2 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2025-01-04 |
|
| 203-487
| 3 |
|
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-487
| 4 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-487
| 5 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-487
| 6 |
|
829J PAETEC ITEL, LLC |
920 |
|
2002-12-16 |
|
| 203-487
| 7 |
|
829J PAETEC ITEL, LLC |
920 |
|
2003-10-21 |
|
| 203-487
| 8 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2014-10-24 |
|
| 203-487
| 9 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-504
| A |
|
829J PAETEC ITEL, LLC |
920 |
|
|
|
| 203-504
| 0 |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2004-04-15 |
|
| 203-504
| 1 |
|
829J PAETEC ITEL, LLC |
920 |
|
2004-04-04 |
|
| 203-504
| 2 |
|
612K CSC VOICE, LLC |
920 |
|
2007-09-20 |
|
| 203-504
| 3 |
|
829J PAETEC ITEL, LLC |
920 |
|
2004-12-02 |
|
| 203-504
| 4 |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2005-02-28 |
|
| 203-504
| 5 |
|
829J PAETEC ITEL, LLC |
920 |
|
2005-04-18 |
|
| 203-504
| 6 |
|
829J PAETEC ITEL, LLC |
920 |
|
2006-02-04 |
|
| 203-504
| 7 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2006-05-05 |
|
| 203-504
| 8 |
|
612K CSC VOICE, LLC |
920 |
|
2007-09-20 |
|
| 203-504
| 9 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2006-01-08 |
|
| 203-517
| A |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-517
| 0 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2005-03-20 |
|
| 203-517
| 1 |
|
829J PAETEC ITEL, LLC |
920 |
|
2006-11-17 |
|
| 203-517
| 2 |
|
829J PAETEC ITEL, LLC |
920 |
|
2007-06-21 |
|
| 203-517
| 3 |
|
829J PAETEC ITEL, LLC |
920 |
|
2006-08-07 |
|
| 203-517
| 4 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-517
| 5 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2006-07-31 |
|
| 203-517
| 6 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2006-07-31 |
|
| 203-517
| 7 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2006-07-31 |
|
| 203-517
| 8 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2006-07-31 |
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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