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203-604

You are reviewing the Area Code (NPA/NXX) report for 203-604. Did you mean to search the SMS short code 203604?

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Examples: 206-739-5800, 206, 206-739, 48369
Raw Number203604
Basic Format203-604
NPA (Area Code)203
NXX604

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
203-604-0XXX4800LEVEL 3 COMMUNICATIONS, LLC - CTNORWALKAS02/14/2005NORWALKCTNE03/12/2005
203-604-1XXX829JPAETEC ITEL, LLCNORWALKAS11/12/2003NORWALKCTNE12/06/2003
203-604-2XXX4800LEVEL 3 COMMUNICATIONS, LLC - CTNORWALKAS08/16/2004NORWALKCTNE09/11/2004
203-604-3XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCNORWALKAS04/17/2014NORWALKCTNE05/17/2014
203-604-4XXX6388CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CTNORWALKAS06/04/2010NORWALKCTNE06/16/2010
203-604-5XXX6388CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CTNORWALKAS01/05/2011NORWALKCTNE02/03/2011
203-604-6XXX4800LEVEL 3 COMMUNICATIONS, LLC - CTNORWALKAS10/05/2005NORWALKCTNE11/03/2005
203-604-7XXX6388CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CTNORWALKAS08/08/2011NORWALKCTNE08/18/2011
203-604-8XXX4800LEVEL 3 COMMUNICATIONS, LLC - CTNORWALKAS06/14/2002NORWALKCTNE07/16/2002
203-604-9XXX4800LEVEL 3 COMMUNICATIONS, LLC - CTNORWALKAS05/10/2005NORWALKCTNE06/04/2005
203-604-XXXX4800LEVEL 3 COMMUNICATIONS, LLC - CTNORWALKAS03/14/2001NORWALKCT

Business/Government Phones on the 203-604 Prefix

PhoneNameAddress
203-604-0027Action J Productions, LLC
203-604-4016Legacy Mason Contractors LLC
203-604-6939Phase 2 Face Home Care
203-604-7118Chaos2Calm Home Editing LLC
203-604-1104P. C. Richard & Son444 Connecticut Avenue Norwalk 06854 US

Reports

Anonymous User from , CT

January 11, 2026 at 4:12 AM

203-604-2621 reported as a Robocall. Received on January 9, 2026 at 12:00 AM.
Call for No Subject Provided

Anonymous User from , CT

November 26, 2025 at 9:53 AM

203-604-1375 reported as a Live Voice or Other. Received on November 25, 2025 at 9:30 PM.
Call for Energy, solar, & utilities

Anonymous User from , CT

August 30, 2025 at 4:04 PM

203-604-8726 reported as a Robocall. Received on August 30, 2025 at 12:00 AM.

Anonymous User from Plainview, Texas

August 29, 2025 at 1:23 PM

203-604-2644 reported as a Live Voice or Other. Received on August 29, 2025 at 11:49 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CT

July 24, 2025 at 10:10 AM

203-604-2495 reported as a Robocall. Received on July 24, 2025 at 9:57 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Norwalk, Connecticut

July 11, 2025 at 4:20 PM

203-604-1439 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

July 1, 2025 at 4:54 PM

203-604-6707 reported as a Robocall. Received on July 1, 2025 at 12:00 AM.
Call for No Subject Provided

Anonymous User from Oxford, Connecticut

June 24, 2025 at 2:52 PM

203-604-6535 reported as a Robocall. Received on June 23, 2025 at 7:38 PM.
Call for Energy, solar, & utilities

Anonymous User from Norwalk, Connecticut

June 4, 2025 at 12:54 PM

203604941 reported as a Robocall. Received on June 4, 2025 at 12:00 AM.
Call for No Subject Provided

Anonymous User from Columbia, SC

March 24, 2025 at 9:55 PM

reported as a Prerecorded Voice. Received on March 24, 2025 at 5:15 PM.
Unwanted call for Other Services
Caller ID indicated they called from 203-604-2855
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , CA

March 24, 2025 at 5:54 PM

203-604-2856 reported as a Robocall. Received on March 24, 2025 at 5:33 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from North Haven, Connecticut

January 9, 2025 at 10:00 AM

203-604-9915 reported as a Live Voice or Other. Received on January 9, 2025 at 9:58 AM.

Anonymous User from , CT

November 14, 2024 at 4:55 PM

203-604-8450 reported as a Robocall. Received on November 14, 2024 at 3:58 PM.
Call for Energy, solar, & utilities

Anonymous User from Saint Clair Shores, Michigan

September 9, 2024 at 9:58 AM

203-604-2384 reported as a Robocall. Received on September 5, 2024 at 10:23 AM.

Anonymous User from Middlefield, CT

September 5, 2024 at 5:19 PM

203-604-2299 reported as a Live Voice. Received on September 5, 2024 at 12:25 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , PA

September 5, 2024 at 3:39 PM

203-604-2299 reported as a Robocall. Received on September 5, 2024 at 11:11 AM.

Anonymous User from Spencer, Indiana

September 5, 2024 at 1:53 PM

203-604-2310 reported as a Live Voice or Other. Received on September 5, 2024 at 12:00 PM.

Anonymous User from Maumee, Ohio

September 5, 2024 at 12:40 PM

203-604-2302 reported as a Robocall. Received on September 5, 2024 at 12:28 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Strongsville, Ohio

September 5, 2024 at 12:07 PM

203-604-2294 reported as a unwanted call. Received on September 5, 2024 at 9:49 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , TX

September 5, 2024 at 10:42 AM

203-604-2291 reported as a Robocall. Received on September 5, 2024 at 8:23 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , MD

September 5, 2024 at 10:36 AM

203-604-2304 reported as a Live Voice or Other. Received on September 5, 2024 at 10:31 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CT

August 26, 2024 at 12:17 PM

203-604-9915 reported as a Live Voice or Other. Received on August 26, 2024 at 10:00 AM.
Call for No Subject Provided

Anonymous User from , CA

May 6, 2024 at 12:40 PM

203-604-3235 reported as a Robocall. Received on May 5, 2024 at 12:35 PM.
Call for No Subject Provided

Anonymous User from , CT

February 28, 2024 at 10:18 AM

203-604-1475 reported as a Robocall. Received on February 28, 2024 at 10:15 AM.

Anonymous User from Warminister, Pennsylvania

February 17, 2024 at 4:27 PM

203-604-0259 reported as a Robocall. Received on January 16, 2024 at 12:00 AM.

Anonymous User from Theodore, Alabama

November 6, 2023 at 1:21 PM

203-604-6048 reported as a Live Voice or Other. Received on November 6, 2023 at 11:25 AM.
Call for Medical & prescriptions

Anonymous User from , TN

September 29, 2023 at 5:14 AM

203-604-0259 reported as a Live Voice or Other. Received on September 28, 2023 at 5:00 PM.
Call for No Subject Provided

Anonymous User from , WA

September 20, 2023 at 9:40 PM

203-604-0259 reported as a Live Voice or Other. Received on September 20, 2023 at 10:30 AM.
Call for No Subject Provided

Anonymous User from , ME

September 2, 2023 at 4:42 PM

203-604-0259 reported as a Robocall. Received on September 2, 2023 at 4:34 PM.

Anonymous User from , ME

September 1, 2023 at 4:14 PM

203-604-0259 reported as a Robocall. Received on September 1, 2023 at 1:32 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Cheshire, Connecticut

December 3, 2022 at 1:03 PM

203-604-8517 reported as a Robocall. Received on November 11, 2022 at 6:18 PM.

Anonymous User from , CT

November 30, -0001 at 12:00 AM

203-604-8450 reported as a Robocall. Received on November 30, -0001 at 12:00 AM.
Call for Energy, solar, & utilities

Most 'popular' numbers on this prefix:

203-604-0XXX: 203-604-0011 | 203-604-0015 | 203-604-0022 | 203-604-0024 | 203-604-0025 | 203-604-0051 | 203-604-0217 | 203-604-0250 | 203-604-0253 | 203-604-0255 | 203-604-0270 | 203-604-0277 |
203-604-1XXX: 203-604-1100 | 203-604-1103 | 203-604-1108 | 203-604-1111 | 203-604-1122 | 203-604-1147 | 203-604-1400 | 203-604-1431 | 203-604-1447 | 203-604-1470 | 203-604-1471 | 203-604-1478 | 203-604-1800 | 203-604-1852 | 203-604-1853 | 203-604-1854 | 203-604-1887 |
203-604-2XXX: 203-604-2200 | 203-604-2233 | 203-604-2262 | 203-604-2290 | 203-604-2294 | 203-604-2299 | 203-604-2300 | 203-604-2310 | 203-604-2311 | 203-604-2314 | 203-604-2345 | 203-604-2362 | 203-604-2800 | 203-604-2853 | 203-604-2854 | 203-604-2855 | 203-604-2888 | 203-604-2889 |
203-604-3XXX: 203-604-3228 | 203-604-3230 | 203-604-3232 | 203-604-3238 | 203-604-3252 | 203-604-3258 |
203-604-4XXX: 203-604-4000 | 203-604-4003 | 203-604-4010 | 203-604-4017 | 203-604-4018 | 203-604-4040 |
203-604-6XXX: 203-604-6000 | 203-604-6003 | 203-604-6006 | 203-604-6040 | 203-604-6047 | 203-604-6049 | 203-604-6900 | 203-604-6930 | 203-604-6931 | 203-604-6935 |
203-604-7XXX: 203-604-7103 | 203-604-7108 | 203-604-7109 | 203-604-7111 | 203-604-7116 | 203-604-7119 |
203-604-8XXX: 203-604-8452 | 203-604-8453 | 203-604-8454 | 203-604-8455 | 203-604-8500 | 203-604-8503 | 203-604-8505 | 203-604-8510 | 203-604-8512 | 203-604-8513 |
203-604-9XXX: 203-604-9900 | 203-604-9909 | 203-604-9910 | 203-604-9911 | 203-604-9914 | 203-604-9962 |