Local Calling Guide
Area code/prefix search
Seymour, CT
1 2 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 203-463
| A |
HRFRCTCRDS0 |
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
|
|
| 203-463
| 0 |
NWHNCT02GT0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
2010-03-23 |
|
| 203-463
| 1 |
HRFRCTCRDS0 |
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
|
|
| 203-463
| 2 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2005-12-18 |
|
| 203-463
| 3 |
|
829J PAETEC ITEL, LLC |
920 |
|
2005-08-26 |
|
| 203-463
| 4 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2004-12-12 |
|
| 203-463
| 5 |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2019-02-18 |
|
| 203-463
| 6 |
HRFRCTASDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
920 |
|
2008-08-01 |
|
| 203-463
| 7 |
|
829J PAETEC ITEL, LLC |
920 |
|
2003-09-16 |
|
| 203-463
| 8 |
HRFRCTCR3MD |
318J COMCAST IP PHONE, LLC |
920 |
|
2006-11-22 |
|
| 203-463
| 9 |
|
829J PAETEC ITEL, LLC |
920 |
|
2002-02-22 |
|
| 203-828
| A |
|
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2025-04-26 |
|
| 203-828
| 0 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2008-11-29 |
|
| 203-828
| 1 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2008-09-16 |
|
| 203-828
| 2 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-828
| 3 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-828
| 4 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-828
| 5 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
|
|
| 203-828
| 6 |
HRFRCTCR3MD |
318J COMCAST IP PHONE, LLC |
920 |
|
2010-01-10 |
|
| 203-828
| 7 |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
2005-12-02 |
|
| 203-828
| 8 |
|
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2002-12-16 |
|
| 203-881
| A |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-881
| 0 |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-881
| 1 |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-881
| 2 |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-881
| 3 |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-881
| 4 |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-881
| 5 |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-881
| 6 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2010-02-28 |
|
| 203-881
| 7 |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-881
| 8 |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-881
| 9 |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-888
| A |
SYMRCT00RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 203-941
| A |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
|
|
| 203-941
| 0 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2010-11-19 |
|
| 203-941
| 1 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2011-10-13 |
|
| 203-941
| 2 |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2012-03-03 |
|
| 203-941
| 3 |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2014-02-08 |
|
| 203-941
| 4 |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2012-10-22 |
|
| 203-941
| 5 |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2012-10-22 |
|
| 203-941
| 6 |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2012-10-22 |
|
| 203-941
| 7 |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2012-10-22 |
|
| 203-941
| 8 |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2012-10-22 |
|
| 203-941
| 9 |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
2011-03-02 |
|
| 475-362
| A |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-22 |
|
| 475-362
| 0 |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-22 |
|
| 475-362
| 3 |
|
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2025-05-30 |
|
| 475-362
| 9 |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2024-11-20 |
|
| 475-463
| A |
HRFRCT03XSX |
516J TON80 COMMUNICATIONS, LLC |
920 |
|
|
|
| 475-463
| 0 |
|
515J IP HORIZON LLC |
920 |
|
2022-07-29 |
|
1 2 >>
Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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