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203-399

You are reviewing the Area Code (NPA/NXX) report for 203-399. Did you mean to search the SMS short code 203399?

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Raw Number203399
Basic Format203-399
NPA (Area Code)203
NXX399

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
203-399-0XXX7230MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CTSTAMFORDRTSTAMFORDCTNE
203-399-1XXX7230MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CTSTAMFORDRTSTAMFORDCTNE
203-399-2XXX6388CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CTSTAMFORDAS10/23/2013STAMFORDCTNE11/15/2013
203-399-3XXX6388CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CTSTAMFORDAS10/23/2013STAMFORDCTNE11/15/2013
203-399-4XXX6388CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CTSTAMFORDAS10/23/2013STAMFORDCTNE11/15/2013
203-399-5XXX7230MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CTSTAMFORDRTSTAMFORDCTNE
203-399-6XXX6388CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CTSTAMFORDAS10/23/2013STAMFORDCTNE11/15/2013
203-399-7XXX6388CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CTSTAMFORDAS10/23/2013STAMFORDCTNE11/15/2013
203-399-8XXX6388CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CTSTAMFORDAS10/23/2013STAMFORDCTNE11/15/2013
203-399-9XXX829JPAETEC ITEL, LLCSTAMFORDAS10/06/2014STAMFORDCTNE10/16/2014
203-399-XXXX7230MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CTSTAMFORDASSTAMFORDCT

Business/Government Phones on the 203-399 Prefix

PhoneNameAddress
203-399-0000Goff Law Group LLC
203-399-3784AK Hanley Accounting LLC
203-399-5000American Institute For Foreign Study, Inc.

Reports

Anonymous User from Bothell, Washington

September 15, 2025 at 10:39 PM

203-399-5161 reported as a Robocall. Received on September 12, 2025 at 1:52 PM.

Anonymous User from Danbury, Connecticut

July 11, 2025 at 2:31 PM

203-399-9224 reported as a Robocall. Received on July 11, 2025 at 2:15 PM.
Call for Medical & prescriptions

Anonymous User from North Bergen, New Jersey

February 6, 2025 at 12:34 PM

203-399-6845 reported as a Live Voice or Other. Received on February 5, 2025 at 2:59 PM.

Anonymous User from , CT

December 4, 2024 at 10:08 AM

203-399-0681 reported as a Robocall. Received on December 4, 2024 at 10:03 AM.
Call for Medical & prescriptions

Anonymous User from , CT

July 29, 2022 at 12:30 PM

203-399-7170 reported as a Robocall. Received on July 28, 2022 at 4:32 PM.

Anonymous User from , CT

June 22, 2022 at 2:13 PM

203-399-0086 reported as a Robocall. Received on June 22, 2022 at 1:58 PM.
Call for Warranties & protection plans

Most 'popular' numbers on this prefix:

203-399-0XXX: 203-399-0000 | 203-399-0003 | 203-399-0005 | 203-399-0007 | 203-399-0600 | 203-399-0606 | 203-399-0630 | 203-399-0680 | 203-399-0681 | 203-399-0687 |
203-399-2XXX: 203-399-2200 | 203-399-2222 | 203-399-2223 | 203-399-2224 | 203-399-2233 | 203-399-2252 | 203-399-2800 | 203-399-2870 | 203-399-2875 | 203-399-2877 | 203-399-2888 |
203-399-3XXX: 203-399-3700 | 203-399-3731 | 203-399-3737 | 203-399-3738 | 203-399-3778 | 203-399-3780 | 203-399-3783 | 203-399-3789 |
203-399-5XXX: 203-399-5000 | 203-399-5003 | 203-399-5005 | 203-399-5006 |
203-399-6XXX: 203-399-6800 | 203-399-6801 | 203-399-6840 | 203-399-6845 | 203-399-6847 | 203-399-6888 |
203-399-7XXX: 203-399-7133 | 203-399-7153 | 203-399-7171 | 203-399-7173 | 203-399-7178 | 203-399-7188 |