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 |
| 475-394
| 1 |
Ansonia-Derby |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2026-03-04 |
|
| 475-394
| 2 |
Ansonia-Derby |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-07-24 |
|
| 475-394
| 3 |
Ansonia-Derby |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2025-11-24 |
|
| 475-394
| 4 |
Ansonia-Derby |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-07-24 |
|
| 475-394
| 5 |
Ansonia-Derby |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2025-10-03 |
|
| 475-394
| 6 |
Ansonia-Derby |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-08-23 |
|
| 475-394
| 8 |
Ansonia-Derby |
CT |
|
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2026-08-08 |
|
| 475-394
| 9 |
Ansonia-Derby |
CT |
SMFRCT018MD |
7421 AT&T - LOCAL |
920 |
|
2025-09-25 |
|
| 475-395
| A |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
| 475-395
| 0 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-11-15 |
|
| 475-395
| 1 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-11-15 |
|
| 475-395
| 2 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-11-16 |
|
| 475-395
| 3 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-11-16 |
|
| 475-395
| 4 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-12-15 |
|
| 475-395
| 5 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-12-15 |
|
| 475-395
| 6 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-12-15 |
|
| 475-395
| 7 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-12-15 |
|
| 475-395
| 8 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2016-11-14 |
|
| 475-395
| 9 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2016-12-14 |
|
| 475-396
| A |
Bridgeport |
CT |
HRFRCTBCBMD |
612K CSC VOICE, LLC |
920 |
|
2025-10-02 |
|
| 475-396
| 0 |
Bridgeport |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2026-05-02 |
|
| 475-396
| 1 |
Bridgeport |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-07-24 |
|
| 475-396
| 2 |
Bridgeport |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-07-24 |
|
| 475-396
| 3 |
Bridgeport |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-07-24 |
|
| 475-396
| 4 |
Bridgeport |
CT |
HRFRCTBCBMD |
612K CSC VOICE, LLC |
920 |
|
2025-10-02 |
|
| 475-397
| A |
Norwalk |
CT |
NRWLCT02ZMD |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2025-12-11 |
|
| 475-397
| 0 |
Norwalk |
CT |
NRWLCT02ZMD |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
2025-12-11 |
|
| 475-397
| 1 |
Norwalk |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2026-05-21 |
|
| 475-397
| 2 |
Norwalk |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-09-14 |
|
| 475-397
| 3 |
Norwalk |
CT |
|
639C ONVOY, LLC - CT |
920 |
|
2026-09-14 |
|
| 475-397
| 8 |
Norwalk |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2026-06-06 |
|
| 475-397
| 9 |
Norwalk |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2026-06-22 |
|
| 475-398
| A |
Huntington |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2026-02-02 |
|
| 475-398
| 0 |
Huntington |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2026-02-02 |
|
| 475-398
| 5 |
Huntington |
CT |
HRFRCT0389Z |
490J BOOST SUBSCRIBERCO L.L.C. |
920 |
|
2026-09-24 |
|
| 475-398
| 6 |
Huntington |
CT |
HRFRCT0389Z |
490J BOOST SUBSCRIBERCO L.L.C. |
920 |
|
2026-06-11 |
|
| 475-398
| 8 |
Huntington |
CT |
HRFRCT0379Z |
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2026-06-06 |
|
| 475-399
| A |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
|
|
| 475-399
| 0 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-11-15 |
|
| 475-399
| 1 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-11-15 |
|
| 475-399
| 2 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-11-15 |
|
| 475-399
| 3 |
Stamford |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2024-09-24 |
|
| 475-399
| 4 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-12-01 |
|
| 475-399
| 5 |
Stamford |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2024-09-24 |
|
| 475-399
| 6 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-11-18 |
|
| 475-399
| 7 |
Stamford |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2015-11-18 |
|
| 475-399
| 8 |
Stamford |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2024-09-24 |
|
| 475-399
| 9 |
Stamford |
CT |
HRFRCT03XMX |
145J TERRA NOVA TELECOM INC. |
920 |
|
2026-03-15 |
|
| 475-400
| A |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
|
|
| 475-400
| 0 |
Stamford |
CT |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
2018-01-22 |
|
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Last updated: Tue, 01 Sep 2026 00:40:05 UTC
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