Local Calling Guide
Area code/prefix search
NPA: 475
[Rate centres in NPA 475]
[Dial plan for NPA 475]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 475-353
| 3 |
Fairfield |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-12 |
|
| 475-353
| 4 |
Fairfield |
CT |
|
5562 METROPCS, INC. |
920 |
|
2024-10-13 |
|
| 475-353
| 6 |
Fairfield |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2025-05-02 |
|
| 475-353
| 7 |
Fairfield |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2025-05-02 |
|
| 475-353
| 8 |
Fairfield |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-03-17 |
|
| 475-353
| 9 |
Fairfield |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2024-03-16 |
|
| 475-354
| A |
Waterbury |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-03-29 |
|
| 475-354
| 0 |
Waterbury |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-03-29 |
|
| 475-354
| 1 |
Waterbury |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-03-29 |
|
| 475-354
| 2 |
Waterbury |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-03-29 |
|
| 475-354
| 3 |
Waterbury |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-03-29 |
|
| 475-354
| 4 |
Waterbury |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-03-29 |
|
| 475-354
| 5 |
Waterbury |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-03-29 |
|
| 475-354
| 6 |
Waterbury |
CT |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2024-08-03 |
|
| 475-354
| 7 |
Waterbury |
CT |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2025-01-20 |
|
| 475-354
| 8 |
Waterbury |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2024-11-02 |
|
| 475-354
| 9 |
Waterbury |
CT |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2025-02-19 |
|
| 475-355
| A |
New Haven |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
| 475-355
| 0 |
New Haven |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2014-08-01 |
|
| 475-355
| 1 |
New Haven |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2014-08-01 |
|
| 475-355
| 2 |
New Haven |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2014-11-13 |
|
| 475-355
| 3 |
New Haven |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2014-11-13 |
|
| 475-355
| 4 |
New Haven |
CT |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2014-10-02 |
|
| 475-355
| 5 |
New Haven |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2014-08-15 |
|
| 475-355
| 6 |
New Haven |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2014-08-15 |
|
| 475-355
| 7 |
New Haven |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2015-06-15 |
|
| 475-355
| 8 |
New Haven |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2014-10-05 |
|
| 475-355
| 9 |
New Haven |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2014-10-05 |
|
| 475-356
| A |
Bridgeport |
CT |
HRFRCT03XOX |
965H FRACTEL, LLC |
920 |
|
|
|
| 475-356
| 0 |
Bridgeport |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2022-09-25 |
|
| 475-356
| 1 |
Bridgeport |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2022-09-25 |
|
| 475-356
| 2 |
Bridgeport |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2022-11-06 |
|
| 475-356
| 3 |
Bridgeport |
CT |
HRFRCTBC2MD |
073H TELNYX LLC |
920 |
|
2022-11-27 |
|
| 475-356
| 4 |
Bridgeport |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2022-12-03 |
|
| 475-356
| 5 |
Bridgeport |
CT |
HRFRCT03CMD |
197D VONAGE AMERICA LLC |
920 |
|
2022-07-23 |
|
| 475-356
| 6 |
Bridgeport |
CT |
HRFRCT0383Z |
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
2022-05-10 |
|
| 475-356
| 7 |
Bridgeport |
CT |
HRFRCT03XOX |
965H FRACTEL, LLC |
920 |
|
2022-05-09 |
|
| 475-356
| 8 |
Bridgeport |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2023-10-14 |
|
| 475-356
| 9 |
Bridgeport |
CT |
HRFRCT03XOX |
965H FRACTEL, LLC |
920 |
|
2022-05-09 |
|
| 475-357
| A |
Milford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-04 |
|
| 475-357
| 0 |
Milford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-04 |
|
| 475-357
| 1 |
Milford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-04 |
|
| 475-357
| 2 |
Milford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-04 |
|
| 475-357
| 3 |
Milford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-04 |
|
| 475-357
| 4 |
Milford |
CT |
SMFRCTPU4MD |
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2025-01-23 |
|
| 475-357
| 5 |
Milford |
CT |
|
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2025-10-03 |
|
| 475-357
| 8 |
Milford |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2025-04-06 |
|
| 475-358
| A |
Branford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-06 |
|
| 475-358
| 0 |
Branford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-06 |
|
| 475-358
| 1 |
Branford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2024-04-06 |
|
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 >>
Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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