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 |
| 475-900
| 3 |
Guilford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2020-07-06 |
|
| 475-900
| 4 |
Guilford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2020-07-06 |
|
| 475-900
| 5 |
Guilford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2020-07-06 |
|
| 475-900
| 6 |
Guilford |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2020-08-09 |
|
| 475-900
| 7 |
Guilford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2019-09-13 |
|
| 475-900
| 8 |
Guilford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2019-09-13 |
|
| 475-900
| 9 |
Guilford |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2020-05-23 |
|
| 475-946
| A |
Old Greenwich |
CT |
HRFRCT03XOX |
965H FRACTEL, LLC |
920 |
|
|
|
| 475-946
| 0 |
Old Greenwich |
CT |
NWHNCT02XJX |
624H ONVOY SPECTRUM, LLC |
920 |
|
2021-03-12 |
|
| 475-946
| 1 |
Old Greenwich |
CT |
|
515J IP HORIZON LLC |
920 |
|
2022-07-31 |
|
| 475-946
| 2 |
Old Greenwich |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2022-09-17 |
|
| 475-946
| 3 |
Old Greenwich |
CT |
HRFRCT03XOX |
965H FRACTEL, LLC |
920 |
|
2020-09-17 |
|
| 475-946
| 4 |
Old Greenwich |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2020-11-22 |
|
| 475-946
| 5 |
Old Greenwich |
CT |
NWHNCT02XJX |
624H ONVOY SPECTRUM, LLC |
920 |
|
2022-02-04 |
|
| 475-946
| 6 |
Old Greenwich |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2020-11-22 |
|
| 475-946
| 7 |
Old Greenwich |
CT |
NWHNCT02XJX |
624H ONVOY SPECTRUM, LLC |
920 |
|
2022-02-04 |
|
| 475-946
| 8 |
Old Greenwich |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2022-09-15 |
|
| 475-977
| A |
Stamford |
CT |
HRFRCT03XOX |
965H FRACTEL, LLC |
920 |
|
|
|
| 475-977
| 0 |
Stamford |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2020-09-18 |
|
| 475-977
| 1 |
Stamford |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2021-06-06 |
|
| 475-977
| 2 |
Stamford |
CT |
HRFRCT03CMD |
197D VONAGE AMERICA LLC |
920 |
|
2021-06-11 |
|
| 475-977
| 3 |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2021-08-08 |
|
| 475-977
| 4 |
Stamford |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-09-12 |
|
| 475-977
| 5 |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2020-11-22 |
|
| 475-977
| 6 |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2020-11-22 |
|
| 475-977
| 7 |
Stamford |
CT |
HRFRCT03XOX |
965H FRACTEL, LLC |
920 |
|
2020-09-17 |
|
| 475-977
| 8 |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2020-11-22 |
|
| 475-977
| 9 |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2020-11-22 |
|
| 475-988
| A |
Bridgeport |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 475-988
| 0 |
Bridgeport |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2015-05-08 |
|
| 475-988
| 1 |
Bridgeport |
CT |
WLMNCT132MD |
792K CHARTER IP ENABLED SERVICES, LLC |
920 |
|
2015-06-03 |
|
| 475-988
| 2 |
Bridgeport |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2016-08-18 |
|
| 475-988
| 3 |
Bridgeport |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2015-10-04 |
|
| 475-988
| 4 |
Bridgeport |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2015-10-04 |
|
| 475-988
| 5 |
Bridgeport |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-06-29 |
|
| 475-988
| 6 |
Bridgeport |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2016-02-06 |
|
| 475-988
| 7 |
Bridgeport |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-04-05 |
|
| 475-988
| 8 |
Bridgeport |
CT |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2016-01-19 |
|
| 475-988
| 9 |
Bridgeport |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2015-04-04 |
|
| 475-996
| A |
Milford |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-10-18 |
|
| 475-996
| 0 |
Milford |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-10-18 |
|
| 475-997
| A |
Cheshire |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-09-11 |
|
| 475-997
| 0 |
Cheshire |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-09-11 |
|
| 475-998
| A |
Fairfield |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-08-29 |
|
| 475-998
| 0 |
Fairfield |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-08-29 |
|
| 475-998
| 1 |
Fairfield |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-08-29 |
|
| 475-998
| 2 |
Fairfield |
CT |
|
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2026-08-31 |
|
| 475-999
| A |
Fairfield |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
|
|
| 475-999
| 0 |
Fairfield |
CT |
HRFRCT0380Z |
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2013-10-18 |
|
| 475-999
| 1 |
Fairfield |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2013-11-10 |
|
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Last updated: Tue, 01 Sep 2026 00:40:05 UTC
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