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840-666

You are reviewing the Area Code (NPA/NXX) report for 840-666. Did you mean to search the SMS short code 840666?

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Raw Number840666
Basic Format840-666
NPA (Area Code)840
NXX666

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateStateRegionBlock Effective Date
840-666-0XXX6010NEW CINGULAR WIRELESS PCS, LLCFONTANAAS03/09/2021CAWC04/08/2021
840-666-1XXX939HCOMMIO, LLCFONTANAAS08/17/2021CAWC09/16/2021
840-666-2XXX939HCOMMIO, LLCFONTANAAS08/17/2021CAWC09/16/2021
840-666-3XXX939HCOMMIO, LLCFONTANAAS08/17/2021CAWC09/16/2021
840-666-4XXX939HCOMMIO, LLCFONTANAAS08/17/2021CAWC09/16/2021
840-666-5XXX6010NEW CINGULAR WIRELESS PCS, LLCFONTANAAS03/17/2021CAWC03/31/2021
840-666-6XXX965HFRACTEL, LLCFONTANAAS12/28/2020CAWC02/25/2021
840-666-7XXX6010NEW CINGULAR WIRELESS PCS, LLCFONTANAAS03/17/2021CAWC03/31/2021
840-666-8XXX6529T-MOBILE USA, INC.FONTANAAS03/01/2021CAWC03/29/2021
840-666-9XXX6529T-MOBILE USA, INC.FONTANAAS03/01/2021CAWC03/29/2021
840-666-XXXX965HFRACTEL, LLCFONTANAAS12/24/2020CA

Business/Government Phones on the 840-666 Prefix

PhoneNameAddress
840-666-5842All n 1

Reports

Anonymous User from , CA

February 25, 2026 at 10:06 PM

840-666-6970 reported as a Robocall. Received on February 25, 2026 at 3:30 PM.

Anonymous User from Hartland, WI

December 24, 2025 at 4:19 PM

840-666-6192 reported as a Prerecorded Voice. Received on December 24, 2025 at 1:00 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Federal Way, Washington

August 8, 2025 at 4:51 PM

840-666-6452 reported as a Robocall. Received on August 8, 2025 at 1:32 PM.

Anonymous User from Deerfield, Illinois

July 22, 2025 at 4:34 PM

840-666-6228 reported as a Live Voice or Other. Received on July 22, 2025 at 1:35 PM.

Anonymous User from Los Angeles, California

October 15, 2024 at 5:17 PM

840-666-7304 reported as a Robocall. Received on October 15, 2024 at 10:30 AM.
Call for Dropped call or no message

Anonymous User from Monroe Twp, New Jersey

September 11, 2024 at 5:49 PM

840-666-6241 reported as a Robocall. Received on September 11, 2024 at 2:16 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , CA

August 7, 2024 at 11:05 PM

840-666-1298 reported as a Live Voice or Other. Received on August 7, 2024 at 10:28 AM.

Anonymous User from Clarksburg, New Jersey

June 30, 2024 at 4:49 PM

840-666-5371 reported as a Robocall. Received on June 12, 2024 at 3:13 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Brunswick, GA

March 9, 2024 at 7:28 PM

840-666-0705 reported as a Text Message. Received on March 9, 2024 at 1:22 PM.
Unwanted call for Other Services
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , CA

September 11, 2023 at 3:52 PM

840-666-7264 reported as a Robocall. Received on September 11, 2023 at 12:35 PM.

Anonymous User from Brooklyn, NY

September 21, 2021 at 3:10 PM

None reported as a Text Message. Received on September 21, 2021 at 9:20 AM.
Unwanted call for other_services
Caller ID indicated they called from 840-666-5469
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Wilson, NC

September 9, 2021 at 1:21 AM

None reported as a Text Message. Received on September 9, 2021 at 10:01 AM.
Unwanted call for other_services
Caller ID indicated they called from 840-666-0440
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

840-666-0XXX: 840-666-0443 | 840-666-0444 | 840-666-0449 | 840-666-0493 | 840-666-0496 | 840-666-0700 | 840-666-0706 | 840-666-0707 | 840-666-0787 |
840-666-1XXX: 840-666-1234 | 840-666-1236 | 840-666-1290 | 840-666-1298 | 840-666-1299 |
840-666-5XXX: 840-666-5370 | 840-666-5373 | 840-666-5375 | 840-666-5460 | 840-666-5465 | 840-666-5466 | 840-666-5840 | 840-666-5847 | 840-666-5848 | 840-666-5887 |
840-666-6XXX: 840-666-6188 | 840-666-6196 | 840-666-6197 | 840-666-6198 | 840-666-6245 | 840-666-6246 | 840-666-6247 | 840-666-6258 | 840-666-6268 |
840-666-7XXX: 840-666-7110 | 840-666-7111 | 840-666-7117 | 840-666-7172 | 840-666-7176 | 840-666-7179 | 840-666-7260 | 840-666-7265 | 840-666-7268 | 840-666-7300 | 840-666-7303 | 840-666-7309 |
840-666-9XXX: 840-666-9370 | 840-666-9372 | 840-666-9373 | 840-666-9600 | 840-666-9606 | 840-666-9609 | 840-666-9667 | 840-666-9696 | 840-666-9697 |