231-307

You are reviewing the Area Code (NPA/NXX) report for 231-307. Did you mean to search the SMS short code 231307?

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.

Phone Lookup Top Complaints Area Codes NPA-NXX iMessage

Raw Number	231307
Basic Format	231-307
NPA (Area Code)	231
NXX	307

Call Routing Data

NPA-NXX-X	OCN	Company	Rate Center	Use Type	Assign Date	State	Region	Block Effective Date
231-307-0XXX	6534	NEW CINGULAR WIRELESS PCS, LLC - IL	MORLEY	RT		MI	MW
231-307-1XXX	543C	ONVOY, LLCV - MI	MORLEY	AS	12/07/2012	MI	MW	01/04/2013
231-307-2XXX	3535	ACD TELECOM, INC. - MI	MORLEY	AS	01/18/2005	MI	MW	02/17/2005
231-307-3XXX	792K	CHARTER IP ENABLED SERVICES, LLC	MORLEY	AS	01/17/2007	MI	MW	02/25/2007
231-307-4XXX	991E	BANDWIDTH.COM CLEC, LLC - MI	MORLEY	AS	08/21/2014	MI	MW	09/20/2014
231-307-5XXX	6120	LEVEL 3 COMMUNICATIONS, LLC - MI	MORLEY	AS	04/28/2008	MI	MW	05/08/2008
231-307-6XXX	991E	BANDWIDTH.COM CLEC, LLC - MI	MORLEY	AS	05/03/2018	MI	MW	06/02/2018
231-307-7XXX	543C	ONVOY, LLCV - MI	MORLEY	AS	02/20/2013	MI	MW	03/18/2013
231-307-8XXX	6120	LEVEL 3 COMMUNICATIONS, LLC - MI	MORLEY	AS	04/28/2008	MI	MW	05/08/2008
231-307-9XXX	6534	NEW CINGULAR WIRELESS PCS, LLC - IL	MORLEY	AS	03/24/2025	MI	MW	04/21/2025
231-307-XXXX	6534	NEW CINGULAR WIRELESS PCS, LLC - IL	MORLEY	AS		MI

Reports

Anonymous User from Manton Mi, Michigan

March 5, 2026 at 10:36 AM

231-307-6808 reported as a Robocall. Received on March 4, 2026 at 12:13 PM.
Call for No Subject Provided

Anonymous User from Big Rapids, Michigan

February 22, 2026 at 5:02 AM

231-307-5309 reported as a Live Voice or Other. Received on February 20, 2026 at 5:09 PM.

Anonymous User from Kalkaska, Michigan

February 20, 2026 at 12:22 PM

231-307-1845 reported as a Live Voice or Other. Received on February 20, 2026 at 11:10 AM.

Anonymous User from Norton Shores, Michigan

December 3, 2025 at 12:59 PM

231-307-4652 reported as a Robocall. Received on December 2, 2025 at 12:00 AM.

Anonymous User from Palatine, IL

November 20, 2025 at 3:33 PM

reported as a Prerecorded Voice. Received on November 20, 2025 at 9:29 AM.
Unwanted call for Health Insurance Services
Caller ID indicated they called from 231-307-6286
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , MI

November 19, 2025 at 12:21 PM

231-307-8328 reported as a Robocall. Received on November 11, 2025 at 12:00 AM.
Call for Medical & prescriptions

Anonymous User from Delton, Michigan

August 11, 2025 at 6:27 PM

231-307-7218 reported as a Robocall. Received on August 11, 2025 at 6:05 PM.

Anonymous User from Morley, Michigan

January 17, 2025 at 11:42 AM

231-307-2579 reported as a Robocall. Received on January 16, 2025 at 11:23 AM.
Call for Medical & prescriptions

Anonymous User from Traverse City, Michigan

January 13, 2025 at 1:25 PM

231-307-7989 reported as a Robocall. Received on January 13, 2025 at 11:30 AM.

Anonymous User from Irons, Michigan

December 8, 2024 at 3:41 PM

231-307-6323 reported as a Robocall. Received on December 7, 2024 at 9:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Kendall, New York

December 5, 2024 at 9:21 AM

231-307-1465 reported as a unwanted call. Received on December 2, 2024 at 5:12 PM.
Call for No Subject Provided

Anonymous User from Flat Rock, Michigan

September 24, 2024 at 1:52 PM

231-307-1477 reported as a Robocall. Received on September 23, 2024 at 2:47 PM.

Anonymous User from East Lansing, Michigan

February 6, 2023 at 2:13 PM

231-307-1005 reported as a Robocall. Received on February 6, 2023 at 1:25 PM.
Call for Energy, solar, & utilities

Anonymous User from , MI

February 1, 2023 at 8:01 PM

231-307-5262 reported as a Live Voice or Other. Received on January 31, 2023 at 11:32 AM.
Call for No Subject Provided

Anonymous User from , MI

September 29, 2022 at 9:52 PM

231-307-1298 reported as a Live Voice or Other. Received on September 26, 2022 at 5:21 PM.

Anonymous User from Kalkaska, Michigan

September 20, 2022 at 2:43 PM

231-307-6927 reported as a Robocall. Received on September 20, 2022 at 2:25 PM.

Anonymous User from , MI

August 17, 2022 at 12:41 PM

231-307-4305 reported as a Live Voice or Other. Received on July 28, 2022 at 9:45 AM.
Call for No Subject Provided

Anonymous User from , MI

August 17, 2022 at 12:38 PM

231-307-4305 reported as a Live Voice or Other. Received on July 28, 2022 at 9:45 AM.
Call for No Subject Provided

Anonymous User from , MI

August 17, 2022 at 12:36 PM

231-307-4305 reported as a Live Voice or Other. Received on July 28, 2022 at 9:45 AM.
Call for No Subject Provided

Anonymous User from Jackson, Michigan

August 16, 2022 at 7:19 PM

231-307-1299 reported as a Robocall. Received on August 11, 2022 at 2:20 PM.

Anonymous User from Midland, Michigan

August 14, 2022 at 8:04 PM

231-307-1299 reported as a Live Voice or Other. Received on August 11, 2022 at 6:34 PM.

Anonymous User from , MI

August 12, 2022 at 9:15 AM

231-307-1299 reported as a Live Voice or Other. Received on August 11, 2022 at 6:17 PM.
Call for No Subject Provided

Anonymous User from Brownstown, MI

June 14, 2022 at 5:27 PM

None reported as a Live Voice. Received on June 14, 2022 at 1:20 PM.
Unwanted call for unknown
Caller ID indicated they called from 231-307-1462
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , MI

June 6, 2022 at 5:03 PM

231-307-2461 reported as a Live Voice or Other. Received on June 6, 2022 at 10:43 AM.

Anonymous User from Discovery Bay, CA

September 23, 2020 at 12:37 AM

231-307-7797 reported as a Text Message. Received on September 22, 2020 at 4:49 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , CA

May 10, 2015 at 6:56 PM

reported as a Prerecorded Voice. Received on March 16, 2015 at 7:09 PM.
Robocall for unknown
Caller ID indicated they called from 231-307-4934
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

231-307-0XXX: 231-307-0501 | 231-307-0502 | 231-307-0540 | 231-307-0545 |
231-307-1XXX: 231-307-1000 | 231-307-1001 | 231-307-1234 | 231-307-1290 | 231-307-1291 | 231-307-1299 | 231-307-1400 | 231-307-1460 | 231-307-1462 | 231-307-1469 |
231-307-2XXX: 231-307-2400 | 231-307-2447 | 231-307-2460 | 231-307-2462 | 231-307-2469 | 231-307-2478 | 231-307-2500 | 231-307-2508 | 231-307-2570 | 231-307-2571 | 231-307-2577 |
231-307-4XXX: 231-307-4300 | 231-307-4303 | 231-307-4308 | 231-307-4348 | 231-307-4349 | 231-307-4931 | 231-307-4937 | 231-307-4939 | 231-307-4996 | 231-307-4997 | 231-307-4998 |
231-307-5XXX: 231-307-5200 | 231-307-5260 | 231-307-5265 | 231-307-5268 |
231-307-6XXX: 231-307-6280 | 231-307-6283 | 231-307-6287 | 231-307-6320 | 231-307-6325 | 231-307-6327 | 231-307-6900 | 231-307-6920 | 231-307-6925 | 231-307-6929 | 231-307-6997 | 231-307-6998 |
231-307-7XXX: 231-307-7700 | 231-307-7777 | 231-307-7778 | 231-307-7790 | 231-307-7795 | 231-307-7799 | 231-307-7983 | 231-307-7987 | 231-307-7989 | 231-307-7996 | 231-307-7997 | 231-307-7998 |