phone.gd North American phone lookup, short codes, caller signals, and complaint-driven research.

203-423

You are reviewing the Area Code (NPA/NXX) report for 203-423. Did you mean to search the SMS short code 203423?

North American Phone Intelligence

Search a phone number, area code, exchange, or short code

Paste raw digits, a formatted phone number, an area code, an NPA-NXX block, or a short code. US and Canada phone lookups route automatically, and international iMessage checks are available separately.

Examples: 206-739-5800, 206, 206-739, 48369
Raw Number203423
Basic Format203-423
NPA (Area Code)203
NXX423

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
203-423-0XXX4800LEVEL 3 COMMUNICATIONS, LLC - CTWILTONAS12/08/2005WILTONCTNE01/02/2006
203-423-1XXX4950CABLEVISION LIGHTPATH, INC. - CTWILTONAS08/03/2007WILTONCTNE08/31/2007
203-423-2XXX7230MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CTWILTONAS05/29/2003WILTONCTNE06/18/2003
203-423-3XXX199FBANDWIDTH.COM CLEC, LLC - CTWILTONAS01/29/2010WILTONCTNE02/28/2010
203-423-4XXX7143TELEPORT COMMUNICATIONS AMERICA, LLC - CTWILTONRTWILTONCTNE
203-423-5XXX4800LEVEL 3 COMMUNICATIONS, LLC - CTWILTONAS11/01/2010WILTONCTNE11/23/2010
203-423-6XXX7143TELEPORT COMMUNICATIONS AMERICA, LLC - CTWILTONRTWILTONCTNE
203-423-7XXX7143TELEPORT COMMUNICATIONS AMERICA, LLC - CTWILTONRTWILTONCTNE
203-423-8XXX7230MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CTWILTONAS08/22/2012WILTONCTNE09/04/2012
203-423-9XXX5562METROPCS, INC.WILTONAS11/25/2002WILTONCTNE12/23/2002
203-423-XXXX7143TELEPORT COMMUNICATIONS AMERICA, LLC - CTWILTONASWILTONCT

Reports

Anonymous User from West Haven, Connecticut

March 25, 2026 at 1:15 PM

203-423-1197 reported as a Live Voice or Other. Received on March 25, 2026 at 1:06 PM.

Anonymous User from Wilton, Connecticut

February 5, 2026 at 10:58 AM

203-423-8234 reported as a Robocall. Received on February 5, 2026 at 9:36 AM.

Anonymous User from , CT

January 22, 2026 at 2:43 PM

203-423-5395 reported as a unwanted call. Received on January 22, 2026 at 2:31 PM.
Call for Dropped call or no message

Anonymous User from Wethersfield, Connecticut

December 16, 2025 at 9:36 PM

203-423-3779 reported as a Robocall. Received on December 16, 2025 at 6:27 PM.

Anonymous User from Farmington, Connecticut

December 10, 2025 at 6:32 PM

203-423-3598 reported as a Robocall. Received on December 10, 2025 at 5:03 PM.
Call for Dropped call or no message

Anonymous User from Waterbury, Connecticut

December 9, 2025 at 2:45 PM

203-423-3598 reported as a Live Voice or Other. Received on December 2, 2025 at 2:43 PM.

Anonymous User from , OH

August 11, 2025 at 2:09 PM

203-423-5152 reported as a Live Voice or Other. Received on August 11, 2025 at 2:08 PM.

Anonymous User from , CT

July 21, 2025 at 9:54 AM

203-423-0648 reported as a Robocall. Received on July 21, 2025 at 12:00 AM.
Call for Medical & prescriptions

Anonymous User from Norwalk, Connecticut

July 11, 2025 at 4:32 PM

203-423-0237 reported as a Live Voice or Other. Received on July 11, 2025 at 12:00 AM.
Call for No Subject Provided

Anonymous User from , CT

June 27, 2025 at 5:00 PM

203-423-2783 reported as a Live Voice or Other. Received on June 26, 2025 at 1:28 PM.
Call for Energy, solar, & utilities

Anonymous User from , CT

June 3, 2025 at 7:35 PM

203-423-3502 reported as a Live Voice or Other. Received on June 2, 2025 at 12:00 AM.
Call for Energy, solar, & utilities

Anonymous User from , CT

May 6, 2025 at 5:50 PM

203-423-5665 reported as a Robocall. Received on May 5, 2025 at 3:32 PM.
Call for Energy, solar, & utilities

Anonymous User from , CT

March 5, 2025 at 4:55 PM

203-423-4731 reported as a Robocall. Received on March 5, 2025 at 2:20 PM.
Call for No Subject Provided

Anonymous User from Maryland Heights, Missouri

March 4, 2025 at 9:29 AM

203-423-1734 reported as a Robocall. Received on March 4, 2025 at 7:29 AM.

Anonymous User from Cheshire, Connecticut

March 3, 2025 at 1:52 PM

203-423-3451 reported as a Robocall. Received on March 3, 2025 at 1:47 PM.

Anonymous User from , AL

February 24, 2025 at 3:07 PM

203-423-0863 reported as a Live Voice or Other. Received on February 19, 2025 at 12:11 PM.

Anonymous User from , CT

February 4, 2025 at 10:11 AM

203-423-6923 reported as a Robocall. Received on February 4, 2025 at 9:26 AM.
Call for Medical & prescriptions

Anonymous User from Pittsburgh, Connecticut

January 22, 2025 at 9:41 PM

203-423-4618 reported as a Robocall. Received on January 22, 2025 at 3:54 PM.

Anonymous User from Port Chester, New York

November 15, 2024 at 3:21 PM

203-423-6130 reported as a Robocall. Received on November 15, 2024 at 3:17 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Port Chester, New York

November 15, 2024 at 3:21 PM

203-423-6130 reported as a Robocall. Received on November 15, 2024 at 3:17 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Stamford, Connecticut

November 5, 2024 at 11:56 AM

203-423-8481 reported as a Robocall. Received on November 4, 2024 at 5:59 PM.

Anonymous User from Naugatuck, CT

October 31, 2024 at 9:00 PM

203-423-5393 reported as a Live Voice. Received on October 31, 2024 at 12:00 AM.
Unwanted call for Auto Warranty Services
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Guilford, Connecticut

August 12, 2024 at 10:07 AM

203-423-0310 reported as a Robocall. Received on August 9, 2024 at 4:44 PM.
Call for Medical & prescriptions

Anonymous User from Berlin, CT

August 1, 2024 at 5:09 PM

reported as a Live Voice. Received on August 1, 2024 at 1:01 PM.
Unwanted call for Other Services
Caller ID indicated they called from 203-423-1740
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , CT

April 18, 2024 at 3:35 PM

203-423-1258 reported as a Robocall. Received on April 15, 2024 at 12:03 PM.

Anonymous User from Milford, Connecticut

December 12, 2023 at 3:18 PM

203-423-3610 reported as a Robocall. Received on December 12, 2023 at 12:00 AM.

Anonymous User from Hamden, Connecticut

October 26, 2023 at 1:37 PM

203-423-3610 reported as a Live Voice or Other. Received on October 26, 2023 at 12:00 AM.

Anonymous User from Bethel, Connecticut

October 13, 2023 at 11:12 AM

203-423-0571 reported as a Robocall. Received on October 13, 2023 at 11:09 AM.
Call for Dropped call or no message

Anonymous User from Bethel, Connecticut

February 14, 2023 at 2:13 PM

203-423-3559 reported as a Live Voice or Other. Received on February 14, 2023 at 2:07 PM.
Call for Medical & prescriptions

Anonymous User from Clarksburg, West Virginia

January 18, 2023 at 4:31 PM

203-423-8053 reported as a Robocall. Received on January 17, 2023 at 12:00 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Jacksonville, North Carolina

December 5, 2022 at 10:58 AM

203-423-3860 reported as a unwanted call. Received on November 1, 2022 at 5:08 AM.

Anonymous User from Prospect, CT

December 1, 2021 at 5:44 PM

203-423-5205 reported as a Prerecorded Voice. Received on December 1, 2021 at 11:33 AM.
Unwanted call for Auto Warranty Services
Contacted via Wired

Most 'popular' numbers on this prefix:

203-423-0XXX: 203-423-0000 | 203-423-0015 | 203-423-0020 | 203-423-0300 | 203-423-0303 | 203-423-0307 | 203-423-0310 | 203-423-0311 | 203-423-0315 | 203-423-0503 | 203-423-0538 | 203-423-0567 | 203-423-0572 | 203-423-0576 | 203-423-0577 |
203-423-1XXX: 203-423-1200 | 203-423-1234 | 203-423-1251 | 203-423-1254 | 203-423-1257 | 203-423-1700 | 203-423-1740 | 203-423-1745 | 203-423-1747 | 203-423-1777 |
203-423-2XXX: 203-423-2300 | 203-423-2333 | 203-423-2345 | 203-423-2352 | 203-423-2353 | 203-423-2354 |
203-423-3XXX: 203-423-3100 | 203-423-3104 | 203-423-3106 | 203-423-3196 | 203-423-3197 | 203-423-3198 | 203-423-3500 | 203-423-3550 | 203-423-3551 | 203-423-3555 | 203-423-3600 | 203-423-3609 | 203-423-3614 | 203-423-3617 | 203-423-3618 | 203-423-3636 | 203-423-3800 | 203-423-3838 | 203-423-3848 | 203-423-3862 | 203-423-3865 | 203-423-3868 |
203-423-4XXX: 203-423-4600 | 203-423-4609 | 203-423-4610 | 203-423-4611 | 203-423-4612 |
203-423-5XXX: 203-423-5200 | 203-423-5201 | 203-423-5208 | 203-423-5238 | 203-423-5263 | 203-423-5268 | 203-423-5300 | 203-423-5320 | 203-423-5330 | 203-423-5390 | 203-423-5393 | 203-423-5399 |
203-423-6XXX: 203-423-6100 | 203-423-6130 | 203-423-6135 | 203-423-6138 | 203-423-6191 | 203-423-6197 |
203-423-7XXX: 203-423-7700 | 203-423-7708 | 203-423-7709 | 203-423-7770 | 203-423-7777 |
203-423-8XXX: 203-423-8000 | 203-423-8003 | 203-423-8006 | 203-423-8050 | 203-423-8054 | 203-423-8056 | 203-423-8400 | 203-423-8404 | 203-423-8408 | 203-423-8480 | 203-423-8484 | 203-423-8487 |