517-991

You are reviewing the Area Code (NPA/NXX) report for 517-991. Did you mean to search the SMS short code 517991?

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	517991
Basic Format	517-991
NPA (Area Code)	517
NXX	991

Call Routing Data

NPA-NXX-X	OCN	Company	Rate Center	Use Type	Assign Date	State	Region	Block Effective Date	Block Available Date
517-991-0XXX	624H	ONVOY SPECTRUM, LLC	CAMDEN	AS	04/03/2024	MI	MW	05/03/2024
517-991-1XXX	543C	ONVOY, LLCV - MI	CAMDEN	AS	09/12/2018	MI	MW	10/12/2018
517-991-2XXX	543C	ONVOY, LLCV - MI	CAMDEN	AS	06/11/2021	MI	MW	07/11/2021
517-991-3XXX	3535	ACD TELECOM, INC. - MI	CAMDEN	RT		MI	MW
517-991-4XXX	770E	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	CAMDEN	AS	01/20/2016	MI	MW	02/15/2016
517-991-5XXX	792K	CHARTER IP ENABLED SERVICES, LLC	CAMDEN	AS	08/26/2025	MI	MW	02/22/2026
517-991-6XXX	3535	ACD TELECOM, INC. - MI	CAMDEN	AV		MI	MW		01/11/2005
517-991-7XXX	508J	CENTURYLINK COMMUNICATIONS, LLC	CAMDEN	AS	12/22/2015	MI	MW	01/23/2016
517-991-8XXX	6003	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	CAMDEN	AS	08/22/2025	MI	MW	09/19/2025
517-991-9XXX	145J	TERRA NOVA TELECOM INC.	CAMDEN	AS	05/02/2025	MI	MW	05/31/2025
517-991-XXXX	3535	ACD TELECOM, INC. - MI	CAMDEN	AS	06/18/2002	MI

Reports

Anonymous User from , MI

March 11, 2026 at 1:29 PM

517-991-3841 reported as a Robocall. Received on March 11, 2026 at 11:15 AM.

Anonymous User from , MI

March 11, 2026 at 11:28 AM

517-991-3841 reported as a Live Voice or Other. Received on March 11, 2026 at 9:00 AM.
Call for No Subject Provided

Anonymous User from Lansing, Michigan

March 10, 2026 at 8:51 PM

517-991-3841 reported as a Live Voice or Other. Received on March 10, 2026 at 12:00 AM.

Anonymous User from Highland, Michigan

February 27, 2026 at 3:06 PM

517-991-1577 reported as a Robocall. Received on February 26, 2026 at 12:14 PM.

Anonymous User from , MI

February 23, 2026 at 4:41 PM

517-991-3841 reported as a Robocall. Received on February 23, 2026 at 12:00 AM.

Anonymous User from Livonia, Michigan

February 18, 2026 at 11:42 AM

517-991-1005 reported as a Live Voice or Other. Received on February 18, 2026 at 11:41 AM.

Anonymous User from Comstock Park, Michigan

February 18, 2026 at 11:31 AM

517-991-1004 reported as a unwanted call. Received on February 17, 2026 at 4:39 PM.

Anonymous User from , MI

February 17, 2026 at 4:00 PM

517-991-1004 reported as a Robocall. Received on February 17, 2026 at 3:55 PM.

Anonymous User from Holt, Michigan

January 27, 2026 at 4:03 PM

517-991-2316 reported as a Robocall. Received on January 27, 2026 at 12:00 AM.
Call for Dropped call or no message

Anonymous User from , MI

September 23, 2025 at 12:34 PM

517-991-2005 reported as a Robocall. Received on September 23, 2025 at 12:00 AM.
Call for Energy, solar, & utilities

Anonymous User from East Lansing, Michigan

August 5, 2025 at 6:57 PM

517-991-2743 reported as a Robocall. Received on August 5, 2025 at 2:41 PM.

Anonymous User from , MI

June 14, 2025 at 7:45 PM

517-991-2895 reported as a Robocall. Received on June 14, 2025 at 7:34 PM.

Anonymous User from Mason, Michigan

April 11, 2025 at 4:42 PM

517-991-3908 reported as a Robocall. Received on April 11, 2025 at 12:24 PM.
Call for Medical & prescriptions

Anonymous User from Clarkston, Michigan

February 26, 2025 at 10:37 AM

517-991-2002 reported as a Live Voice or Other. Received on February 26, 2025 at 10:08 AM.
Call for Energy, solar, & utilities

Anonymous User from Clarkston, Michigan

February 26, 2025 at 10:31 AM

517-991-2002 reported as a Live Voice or Other. Received on February 26, 2025 at 9:08 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Farmington Hills, Michigan

February 26, 2025 at 9:55 AM

517-991-2001 reported as a Live Voice or Other. Received on February 26, 2025 at 9:42 AM.
Call for Energy, solar, & utilities

Anonymous User from , MI

February 21, 2025 at 2:15 PM

517-991-2774 reported as a unwanted call. Received on February 10, 2025 at 2:26 PM.
Call for No Subject Provided

Anonymous User from Lathrup Village, Michigan

February 20, 2025 at 1:59 PM

517-991-2006 reported as a Robocall. Received on February 20, 2025 at 11:15 AM.
Call for Energy, solar, & utilities

Anonymous User from Parma, Michigan

November 24, 2024 at 4:55 PM

517-991-4626 reported as a Robocall. Received on November 24, 2024 at 4:52 PM.
Call for Medical & prescriptions

Anonymous User from Soddy Daisy, Tennessee

October 2, 2024 at 1:03 PM

517-991-1680 reported as a Live Voice or Other. Received on October 2, 2024 at 12:44 PM.
Call for Medical & prescriptions

Anonymous User from East Lansing, Michigan

August 14, 2024 at 2:32 PM

517-991-1780 reported as a Live Voice or Other. Received on August 12, 2024 at 7:22 PM.

Anonymous User from , MI

March 27, 2023 at 4:52 PM

517-991-1092 reported as a Robocall. Received on March 27, 2023 at 3:55 AM.

Anonymous User from Trenton, MI

February 16, 2023 at 9:00 PM

None reported as a Prerecorded Voice. Received on February 16, 2023 at 9:00 AM.
Unwanted call for unknown
Caller ID indicated they called from 517-991-1890
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Detroit, Michigan

February 9, 2023 at 6:40 PM

517-991-1186 reported as a Live Voice or Other. Received on February 9, 2023 at 6:36 PM.
Call for Dropped call or no message

Anonymous User from Misouri, Michigan

August 31, 2022 at 4:18 PM

517-991-8155 reported as a Robocall. Received on August 31, 2022 at 2:00 AM.
Call for Dropped call or no message

Anonymous User from , MI

August 9, 2022 at 2:55 PM

517-991-7046 reported as a Robocall. Received on August 9, 2022 at 2:47 PM.
Call for No Subject Provided

Anonymous User from , PA

November 3, 2016 at 4:24 PM

reported as a Prerecorded Voice. Received on November 3, 2016 at 12:00 AM.
Unwanted call for unknown
Caller ID indicated they called from 517-991-1271
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

517-991-1XXX: 517-991-1000 | 517-991-1004 | 517-991-1010 | 517-991-1090 | 517-991-1091 | 517-991-1099 | 517-991-1212 | 517-991-1220 | 517-991-1234 | 517-991-1270 | 517-991-1271 | 517-991-1272 | 517-991-1600 | 517-991-1605 | 517-991-1608 | 517-991-1680 | 517-991-1686 | 517-991-1688 | 517-991-1700 | 517-991-1701 | 517-991-1703 | 517-991-1780 | 517-991-1783 | 517-991-1788 | 517-991-1800 | 517-991-1808 | 517-991-1809 | 517-991-1891 | 517-991-1896 | 517-991-1899 |
517-991-2XXX: 517-991-2000 | 517-991-2006 | 517-991-2008 | 517-991-2770 | 517-991-2777 |
517-991-3XXX: 517-991-3900 | 517-991-3903 | 517-991-3906 | 517-991-3993 | 517-991-3998 |
517-991-4XXX: 517-991-4600 | 517-991-4620 | 517-991-4623 | 517-991-4625 | 517-991-4662 | 517-991-4668 |
517-991-7XXX: 517-991-7000 | 517-991-7010 | 517-991-7040 | 517-991-7044 | 517-991-7048 | 517-991-7050 |
517-991-8XXX: 517-991-8150 | 517-991-8153 | 517-991-8159 | 517-991-8187 | 517-991-8188 | 517-991-8197 |