Local Calling Guide
Area code/prefix search
Stamford, CT
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 203-517
| 9 |
|
612K CSC VOICE, LLC |
920 |
|
2008-03-07 |
|
| 203-524
| A |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
| 203-524
| 0 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
| 203-524
| 1 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2010-08-11 |
|
| 203-524
| 2 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
| 203-524
| 3 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
| 203-524
| 4 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
| 203-524
| 5 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
| 203-524
| 6 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2010-08-11 |
|
| 203-524
| 7 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2008-09-19 |
|
| 203-524
| 8 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2010-05-22 |
|
| 203-524
| 9 |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2010-05-22 |
|
| 203-536
| A |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
| 203-539
| A |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-539
| 0 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2008-11-29 |
|
| 203-539
| 1 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2008-11-29 |
|
| 203-539
| 2 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2013-10-01 |
|
| 203-539
| 3 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-539
| 4 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-539
| 5 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-539
| 6 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2006-12-21 |
|
| 203-539
| 7 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-539
| 8 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-539
| 9 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2011-04-15 |
|
| 203-541
| A |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-541
| 0 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2010-07-03 |
|
| 203-541
| 1 |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-01-01 |
|
| 203-541
| 2 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-541
| 3 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-541
| 4 |
NRWLCTCVDS0 |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2008-05-16 |
|
| 203-541
| 5 |
|
829J PAETEC ITEL, LLC |
920 |
|
2009-03-30 |
|
| 203-541
| 6 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-541
| 7 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-541
| 8 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-541
| 9 |
SMFRCT01DS2 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-547
| A |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
|
|
| 203-548
| A |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-548
| 0 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2010-02-28 |
|
| 203-548
| 1 |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2008-06-21 |
|
| 203-548
| 2 |
NRWLCTCVDS0 |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2003-04-16 |
|
| 203-548
| 3 |
NRWLCTCVDS0 |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2003-05-09 |
|
| 203-548
| 4 |
NRWLCTCVDS0 |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2003-04-16 |
|
| 203-548
| 5 |
NRWLCTCVDS0 |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2003-08-01 |
|
| 203-548
| 6 |
NRWLCTCVDS0 |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2003-08-01 |
|
| 203-548
| 7 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2010-02-28 |
|
| 203-548
| 8 |
NRWLCTCVDS0 |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2009-06-05 |
|
| 203-548
| 9 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2002-07-16 |
|
| 203-550
| A |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-554
| A |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
| 203-561
| A |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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