Local Calling Guide
Area code/prefix search
NPA: 475
[Rate centres in NPA 475]
[Dial plan for NPA 475]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 475-666
| A |
Westport |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
|
|
| 475-666
| 0 |
Westport |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2016-07-10 |
|
| 475-666
| 1 |
Westport |
CT |
HRFRCT03HMD |
073H TELNYX LLC |
920 |
|
2017-06-05 |
|
| 475-666
| 2 |
Westport |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2018-10-21 |
|
| 475-666
| 3 |
Westport |
CT |
NWHNCT02XJX |
624H ONVOY SPECTRUM, LLC |
920 |
|
2021-03-12 |
|
| 475-666
| 4 |
Westport |
CT |
HRFRCT0383Z |
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
2018-12-07 |
|
| 475-666
| 5 |
Westport |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2018-10-15 |
|
| 475-666
| 6 |
Westport |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2016-06-12 |
|
| 475-666
| 7 |
Westport |
CT |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2016-10-04 |
|
| 475-666
| 8 |
Westport |
CT |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2016-09-28 |
|
| 475-666
| 9 |
Westport |
CT |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2016-08-26 |
|
| 475-673
| A |
Norwalk |
CT |
HRFRCT03XSX |
516J TON80 COMMUNICATIONS, LLC |
920 |
|
|
|
| 475-673
| 0 |
Norwalk |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-01-07 |
|
| 475-673
| 1 |
Norwalk |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-01-07 |
|
| 475-673
| 2 |
Norwalk |
CT |
HRFRCT03XSX |
516J TON80 COMMUNICATIONS, LLC |
920 |
|
2022-03-12 |
|
| 475-673
| 3 |
Norwalk |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2023-01-20 |
|
| 475-673
| 4 |
Norwalk |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2023-01-20 |
|
| 475-673
| 5 |
Norwalk |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2023-01-20 |
|
| 475-673
| 6 |
Norwalk |
CT |
NWHNCT02XJX |
624H ONVOY SPECTRUM, LLC |
920 |
|
2022-03-13 |
|
| 475-673
| 7 |
Norwalk |
CT |
NWHNCT02XJX |
624H ONVOY SPECTRUM, LLC |
920 |
|
2022-03-13 |
|
| 475-673
| 8 |
Norwalk |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-07-15 |
|
| 475-673
| 9 |
Norwalk |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-06-07 |
|
| 475-675
| A |
Seymour |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
|
|
| 475-675
| 0 |
Seymour |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2013-03-31 |
|
| 475-675
| 1 |
Seymour |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2015-05-08 |
|
| 475-675
| 2 |
Seymour |
CT |
HRFRCTCR3MD |
318J COMCAST IP PHONE, LLC |
920 |
|
2014-09-10 |
|
| 475-675
| 3 |
Seymour |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2015-06-29 |
|
| 475-675
| 4 |
Seymour |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2021-09-30 |
|
| 475-675
| 5 |
Seymour |
CT |
HRFRCTCR3MD |
318J COMCAST IP PHONE, LLC |
920 |
|
2014-03-17 |
|
| 475-675
| 6 |
Seymour |
CT |
HRFRCT03HMD |
073H TELNYX LLC |
920 |
|
2018-05-02 |
|
| 475-675
| 7 |
Seymour |
CT |
NWLNCTCS6MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
920 |
|
2014-07-16 |
|
| 475-675
| 8 |
Seymour |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2013-04-29 |
|
| 475-675
| 9 |
Seymour |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2013-04-29 |
|
| 475-678
| A |
Danbury |
CT |
|
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
2025-12-11 |
|
| 475-678
| 6 |
Danbury |
CT |
|
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
2025-12-11 |
|
| 475-685
| A |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
| 475-685
| 0 |
Stamford |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2019-06-12 |
|
| 475-685
| 1 |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2019-06-14 |
|
| 475-685
| 2 |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2019-06-14 |
|
| 475-685
| 3 |
Stamford |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2019-07-01 |
|
| 475-685
| 4 |
Stamford |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2019-08-28 |
|
| 475-685
| 5 |
Stamford |
CT |
|
829J PAETEC ITEL, LLC |
920 |
|
2019-06-13 |
|
| 475-685
| 6 |
Stamford |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2018-10-15 |
|
| 475-685
| 7 |
Stamford |
CT |
HRFRCT0383Z |
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
2018-12-27 |
|
| 475-685
| 8 |
Stamford |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2019-01-28 |
|
| 475-685
| 9 |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2019-02-15 |
|
| 475-688
| A |
Meriden |
CT |
HRFRCT03XOX |
965H FRACTEL, LLC |
920 |
|
|
|
| 475-688
| 0 |
Meriden |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2020-12-06 |
|
| 475-688
| 1 |
Meriden |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2021-05-10 |
|
| 475-688
| 2 |
Meriden |
CT |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2021-09-30 |
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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