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312-999

You are reviewing the Area Code (NPA/NXX) report for 312-999. Did you mean to search the SMS short code 312999?

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Examples: 206-739-5800, 206, 206-739, 48369

🇺🇸 DSN NORTHCOM Area Code Detected

The area code you entered, 312, overlaps with the DSN network for the Continental United States and Puerto Rico under Northern Command (NORTHCOM), though it could also be part of standard civilian phone numbers.

Raw Number312999
Basic Format312-999
NPA (Area Code)312
NXX999

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
312-999-0XXX984EBANDWIDTH.COM CLEC, LLC - ILCHICGOZN01AS07/18/2011CHICAGO ZONE 01ILMW08/14/2011
312-999-1XXX7229MCIMETRO ACCESS TRANSMISSION SERVICES LLCCHICGOZN01AS11/04/2010CHICAGO ZONE 01ILMW12/02/2010
312-999-2XXX6115LEVEL 3 COMMUNICATIONS, LLC - ILCHICGOZN01AS11/04/2010CHICAGO ZONE 01ILMW12/02/2010
312-999-3XXX624HONVOY SPECTRUM, LLCCHICGOZN01AS09/17/2024CHICAGO ZONE 01ILMW10/14/2024
312-999-4XXX7229MCIMETRO ACCESS TRANSMISSION SERVICES LLCCHICGOZN01AS11/18/2010CHICAGO ZONE 01ILMW12/02/2010
312-999-5XXX7229MCIMETRO ACCESS TRANSMISSION SERVICES LLCCHICGOZN01AS11/18/2010CHICAGO ZONE 01ILMW12/02/2010
312-999-6XXX7229MCIMETRO ACCESS TRANSMISSION SERVICES LLCCHICGOZN01AS11/18/2010CHICAGO ZONE 01ILMW12/02/2010
312-999-7XXX984EBANDWIDTH.COM CLEC, LLC - ILCHICGOZN01AS07/18/2011CHICAGO ZONE 01ILMW08/14/2011
312-999-8XXX984EBANDWIDTH.COM CLEC, LLC - ILCHICGOZN01AS07/18/2011CHICAGO ZONE 01ILMW08/14/2011
312-999-9XXX460KFIRST COMMUNICATIONS, LLCCHICGOZN01AS12/18/2013CHICAGO ZONE 01ILMW01/02/2014
312-999-XXXX7229MCIMETRO ACCESS TRANSMISSION SERVICES LLCCHICGOZN01AS08/20/2010CHICAGO ZONE 01IL

Business/Government Phones on the 312-999 Prefix

PhoneNameAddress
312-999-8400FlooringDealz LLC
312-999-9999GWC Injury Lawyers LLC
312-999-0202Mag Vacations2408 South Wentworth Avenue Chicago 60616 US
312-999-0344MoneyTree Genetics4017 West Irving Park Road Chicago 60641 US
312-999-9300Doc B's Fresh Kitchen - River North55 East Grand Avenue Chicago 60611 US

Reports

Anonymous User from Fort Collins, Colorado

March 18, 2026 at 11:39 AM

312-999-7697 reported as a Live Voice or Other. Received on March 18, 2026 at 9:29 AM.
Call for Medical & prescriptions

Anonymous User from Park Ridge, Illinois

February 24, 2026 at 1:48 PM

312-999-1807 reported as a Robocall. Received on February 23, 2026 at 12:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , IL

February 18, 2026 at 2:22 PM

312-999-9993 reported as a Robocall. Received on February 4, 2026 at 4:35 PM.

Anonymous User from , IL

February 4, 2026 at 5:41 PM

312-999-9993 reported as a Robocall. Received on February 4, 2026 at 4:35 PM.

Anonymous User from , IL

January 7, 2026 at 12:21 PM

312-999-9993 reported as a Robocall. Received on January 2, 2026 at 6:14 PM.

Anonymous User from , IL

December 11, 2025 at 2:34 PM

312-999-9993 reported as a Robocall. Received on December 11, 2025 at 12:56 PM.

Anonymous User from Carpentersville, Illinois

November 26, 2025 at 10:17 AM

312-999-8112 reported as a Live Voice or Other. Received on November 26, 2025 at 9:11 AM.
Call for Medical & prescriptions

Anonymous User from Libertyville, Illinois

July 11, 2025 at 3:53 PM

312-999-2410 reported as a Live Voice or Other. Received on July 10, 2025 at 2:52 PM.

Anonymous User from Libertyville, Illinois

June 10, 2025 at 10:06 AM

312-999-6358 reported as a Live Voice or Other. Received on June 5, 2025 at 9:05 AM.

Anonymous User from , FL

June 4, 2025 at 3:33 PM

312-999-9722 reported as a Live Voice or Other. Received on June 4, 2025 at 2:30 PM.
Call for Work from home & other ways to make money

Anonymous User from , IL

May 28, 2025 at 10:45 PM

312-999-7391 reported as a Robocall. Received on May 27, 2025 at 9:30 AM.
Call for Dropped call or no message

Anonymous User from San Diego, California

May 20, 2025 at 3:17 PM

312-999-7846 reported as a Live Voice or Other. Received on May 20, 2025 at 11:46 AM.
Call for Work from home & other ways to make money

Anonymous User from , IL

April 11, 2025 at 10:59 AM

312-999-6388 reported as a Robocall. Received on April 9, 2025 at 5:52 PM.
Call for Dropped call or no message

Anonymous User from , IL

April 9, 2025 at 5:57 PM

312-999-6388 reported as a Robocall. Received on April 9, 2025 at 5:52 PM.
Call for Dropped call or no message

Anonymous User from Illinois, Illinois

January 24, 2025 at 12:02 PM

312-999-5170 reported as a Robocall. Received on January 24, 2025 at 10:54 AM.
Call for Warranties & protection plans

Anonymous User from , IL

January 20, 2025 at 4:41 PM

312-999-4346 reported as a Robocall. Received on January 17, 2025 at 1:59 PM.
Call for Dropped call or no message

Anonymous User from Libertyville, Illinois

October 30, 2024 at 1:35 PM

312-999-5653 reported as a Live Voice or Other. Received on October 29, 2024 at 1:32 PM.

Anonymous User from Woodridge, Illinois

October 22, 2024 at 5:22 PM

312-999-9010 reported as a Robocall. Received on October 22, 2024 at 3:57 PM.
Call for Medical & prescriptions

Anonymous User from Woodridge, Illinois

October 22, 2024 at 5:21 PM

312-999-9010 reported as a Robocall. Received on October 22, 2024 at 3:57 PM.
Call for Medical & prescriptions

Anonymous User from Woodridge, Illinois

October 22, 2024 at 5:21 PM

312-999-9010 reported as a Robocall. Received on October 22, 2024 at 3:57 PM.
Call for Medical & prescriptions

Anonymous User from Woodridge, Illinois

October 22, 2024 at 5:20 PM

312-999-9010 reported as a Robocall. Received on October 22, 2024 at 3:57 PM.
Call for Medical & prescriptions

Anonymous User from Woodridge, Illinois

October 22, 2024 at 5:20 PM

312-999-9010 reported as a Robocall. Received on October 22, 2024 at 3:57 PM.
Call for Medical & prescriptions

Anonymous User from Huntley, Illinois

September 13, 2024 at 12:51 PM

312-999-0399 reported as a Robocall. Received on September 12, 2024 at 10:08 AM.

Anonymous User from Western Springs, Illinois

September 10, 2024 at 12:21 PM

312-999-0273 reported as a Robocall. Received on September 10, 2024 at 11:17 AM.

Anonymous User from Chicago, Illinois

July 25, 2024 at 1:36 PM

312-999-8737 reported as a Live Voice or Other. Received on July 22, 2024 at 10:20 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Chicago, Illinois

July 2, 2024 at 2:32 PM

312-999-0854 reported as a Robocall. Received on July 2, 2024 at 12:04 PM.
Call for Medical & prescriptions

Anonymous User from Elmwood Park, Illinois

May 6, 2024 at 2:39 PM

312-999-0000 reported as a Live Voice or Other. Received on April 25, 2024 at 11:00 AM.
Call for Warranties & protection plans

Anonymous User from , IL

May 3, 2024 at 4:59 PM

312-999-4249 reported as a Live Voice or Other. Received on May 3, 2024 at 12:00 AM.
Call for No Subject Provided

Anonymous User from Colorado Springs, Colorado

March 26, 2024 at 1:34 PM

312-999-5034 reported as a Robocall. Received on March 26, 2024 at 9:59 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , IL

January 11, 2024 at 5:43 PM

312-999-7487 reported as a unwanted call. Received on January 11, 2024 at 1:51 PM.
Call for No Subject Provided

Anonymous User from Chicago, Illinois

July 22, 2023 at 12:31 PM

312-999-6293 reported as a Live Voice or Other. Received on July 22, 2023 at 9:23 AM.
Call for Dropped call or no message

Anonymous User from Chicago, IL

June 28, 2023 at 2:27 AM

312-999-9999 reported as a Live Voice. Received on June 28, 2023 at 3:00 PM.
Unwanted call for unknown
Contacted via Wired

Anonymous User from , TX

February 9, 2023 at 11:51 AM

312-999-9999 reported as a Robocall. Received on February 9, 2023 at 10:48 AM.

Anonymous User from Owasso, Oklahoma

November 25, 2022 at 1:38 AM

312-999-9740 reported as a Robocall. Received on November 24, 2022 at 11:29 AM.
Call for Dropped call or no message

Anonymous User from , MS

July 27, 2022 at 5:18 PM

312-999-1222 reported as a Robocall. Received on July 26, 2022 at 12:05 PM.
Call for Dropped call or no message

Anonymous User from , CA

July 1, 2022 at 5:42 PM

312-999-7342 reported as a unwanted call. Received on July 1, 2022 at 2:40 PM.
Call for No Subject Provided

Anonymous User from , IL

June 9, 2022 at 9:04 PM

312-999-5414 reported as a Robocall. Received on June 9, 2022 at 1:17 PM.

Most 'popular' numbers on this prefix:

312-999-0XXX: 312-999-0000 | 312-999-0001 | 312-999-0002 | 312-999-0003 | 312-999-0031 | 312-999-0033 | 312-999-0034 | 312-999-0150 | 312-999-0152 | 312-999-0158 | 312-999-0178 | 312-999-0200 | 312-999-0202 | 312-999-0208 | 312-999-0238 | 312-999-0247 | 312-999-0248 | 312-999-0302 | 312-999-0303 | 312-999-0309 | 312-999-0340 | 312-999-0344 | 312-999-0349 | 312-999-0500 | 312-999-0502 | 312-999-0503 | 312-999-0559 | 312-999-0583 | 312-999-0587 | 312-999-0802 | 312-999-0806 | 312-999-0808 | 312-999-0851 | 312-999-0852 | 312-999-0853 |
312-999-1XXX: 312-999-1212 | 312-999-1221 | 312-999-1222 | 312-999-1229 | 312-999-1234 |
312-999-3XXX: 312-999-3500 | 312-999-3535 | 312-999-3590 | 312-999-3595 | 312-999-3599 |
312-999-4XXX: 312-999-4000 | 312-999-4002 | 312-999-4040 | 312-999-4045 | 312-999-4047 | 312-999-4062 | 312-999-4240 | 312-999-4242 | 312-999-4243 | 312-999-4245 | 312-999-4249 | 312-999-4340 | 312-999-4343 | 312-999-4345 | 312-999-4349 | 312-999-4393 | 312-999-4755 | 312-999-4757 | 312-999-4759 | 312-999-4779 | 312-999-4787 |
312-999-5XXX: 312-999-5000 | 312-999-5001 | 312-999-5002 | 312-999-5030 | 312-999-5033 | 312-999-5037 | 312-999-5170 | 312-999-5173 | 312-999-5175 | 312-999-5196 | 312-999-5198 | 312-999-5409 | 312-999-5414 | 312-999-5415 | 312-999-5417 | 312-999-5650 | 312-999-5655 | 312-999-5656 | 312-999-5678 |
312-999-6XXX: 312-999-6172 | 312-999-6173 | 312-999-6177 | 312-999-6188 | 312-999-6197 | 312-999-6198 | 312-999-6247 | 312-999-6248 | 312-999-6258 | 312-999-6290 | 312-999-6292 | 312-999-6299 | 312-999-6363 | 312-999-6368 | 312-999-6369 | 312-999-6383 | 312-999-6386 | 312-999-6387 |
312-999-7XXX: 312-999-7343 | 312-999-7348 | 312-999-7349 | 312-999-7371 | 312-999-7372 | 312-999-7373 | 312-999-7443 | 312-999-7449 | 312-999-7483 | 312-999-7486 | 312-999-7487 |
312-999-8XXX: 312-999-8400 | 312-999-8401 | 312-999-8409 | 312-999-8443 | 312-999-8453 | 312-999-8701 | 312-999-8733 | 312-999-8737 | 312-999-8739 | 312-999-8783 | 312-999-8787 | 312-999-8962 | 312-999-8967 | 312-999-8969 | 312-999-8993 | 312-999-8997 | 312-999-8998 |
312-999-9XXX: 312-999-9000 | 312-999-9010 | 312-999-9011 | 312-999-9015 | 312-999-9060 | 312-999-9090 | 312-999-9300 | 312-999-9303 | 312-999-9309 | 312-999-9339 | 312-999-9393 | 312-999-9398 | 312-999-9706 | 312-999-9707 | 312-999-9709 | 312-999-9743 | 312-999-9744 | 312-999-9745 | 312-999-9900 | 312-999-9962 | 312-999-9990 | 312-999-9998 | 312-999-9999 |