312-945

You are reviewing the Area Code (NPA/NXX) report for 312-945. Did you mean to search the SMS short code 312945?

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🇺🇸 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 Number	312945
Basic Format	312-945
NPA (Area Code)	312
NXX	945

Call Routing Data

NPA-NXX-X	OCN	Company	Rate Center	Use Type	Assign Date	State	Region	Block Effective Date
312-945-0XXX	224C	ONVOY, LLC	CHICGOZN01	AS	03/03/2020	IL	MW	04/04/2020
312-945-1XXX	6534	NEW CINGULAR WIRELESS PCS, LLC - IL	CHICGOZN01	AS	07/11/2011	IL	MW	08/07/2011
312-945-2XXX	6534	NEW CINGULAR WIRELESS PCS, LLC - IL	CHICGOZN01	AS	04/08/2011	IL	MW	05/07/2011
312-945-3XXX	9329	ILLINOIS BELL TEL CO	CHICGOZN01	RT		IL	MW
312-945-4XXX	9329	ILLINOIS BELL TEL CO	CHICGOZN01	RT		IL	MW
312-945-5XXX	7229	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	CHICGOZN01	AS	09/16/2009	IL	MW	10/12/2009
312-945-6XXX	984E	BANDWIDTH.COM CLEC, LLC - IL	CHICGOZN01	AS	02/02/2010	IL	MW	03/04/2010
312-945-7XXX	984E	BANDWIDTH.COM CLEC, LLC - IL	CHICGOZN01	AS	08/24/2010	IL	MW	09/19/2010
312-945-8XXX	984E	BANDWIDTH.COM CLEC, LLC - IL	CHICGOZN01	AS	02/02/2010	IL	MW	03/04/2010
312-945-9XXX	6529	T-MOBILE USA, INC.	CHICGOZN01	AS	05/05/2009	IL	MW	05/18/2009
312-945-XXXX	9329	ILLINOIS BELL TEL CO	CHICGOZN01	AS		IL

Business/Government Phones on the 312-945 Prefix

Phone	Name	Address
312-945-0207	SpeedPro Chicago Loop
312-945-0662	Willens & Baez Personal Injury Lawyers, P.C.
312-945-7420	Telnyx LLC
312-945-1845	Three Fox Five	350 North Orleans Street Chicago 60654 US
312-945-2020	Wheeler Mansion	2020 South Calumet Avenue Chicago 60616 US
312-945-7040	Bistro Monadnock	325 South Federal Street US
312-945-7420	Telnyx LLC	311 West Superior Street Chicago 60654 US
312-945-8510	Sliding Doors of Chicago, Inc.	180 North LaSalle Street Chicago 60601 US
312-945-9619	Lake Shore Dance Academy	807 Ridge Road Wilmette 60091 US
312-945-9619	Lake Shore Dance Academy	915 Foster Street Evanston 60201 US

Reports

Anonymous User from Vero Beach, Florida

February 13, 2026 at 10:35 AM

312-945-0778 reported as a Robocall. Received on February 13, 2026 at 9:56 AM.

Anonymous User from , IL

January 22, 2026 at 12:40 PM

312-945-0803 reported as a Robocall. Received on January 13, 2026 at 10:32 AM.
Call for Dropped call or no message

Anonymous User from Ann Arbor, Michigan

September 15, 2025 at 3:14 PM

312-945-0169 reported as a Robocall. Received on September 15, 2025 at 3:06 PM.
Call for Computer & technical support

Anonymous User from , IL

July 15, 2025 at 12:35 PM

312-945-7391 reported as a Robocall. Received on July 15, 2025 at 11:29 AM.

Anonymous User from Chicago, Illinois

June 17, 2025 at 4:36 PM

312-945-0803 reported as a Robocall. Received on June 17, 2025 at 3:34 PM.
Call for Medical & prescriptions

Anonymous User from Chicago, Illinois

June 7, 2025 at 11:00 AM

312-945-1136 reported as a Live Voice or Other. Received on June 7, 2025 at 9:55 PM.

Anonymous User from West Chicago, Illinois

May 19, 2025 at 5:57 PM

312-945-7683 reported as a Robocall. Received on May 19, 2025 at 12:10 PM.

Anonymous User from Rockledge, Illinois

April 7, 2025 at 5:55 PM

312-945-5080 reported as a Robocall. Received on April 7, 2025 at 1:54 PM.
Call for Dropped call or no message

Anonymous User from Chicago, Illinois

February 11, 2025 at 10:49 AM

312-945-6375 reported as a Robocall. Received on February 11, 2025 at 9:23 AM.

Anonymous User from Chicago, Illinois

January 21, 2025 at 4:12 PM

312-945-5678 reported as a Robocall. Received on January 21, 2025 at 3:10 AM.

Anonymous User from Libertyville, Illinois

December 17, 2024 at 2:21 PM

312-945-3106 reported as a Live Voice or Other. Received on December 16, 2024 at 4:20 PM.

Anonymous User from Libertyville, Illinois

November 12, 2024 at 6:49 PM

312-945-0953 reported as a Live Voice or Other. Received on November 12, 2024 at 12:48 PM.

Anonymous User from Libertyville, Illinois

October 30, 2024 at 1:39 PM

312-945-6264 reported as a Live Voice or Other. Received on October 29, 2024 at 2:50 PM.

Anonymous User from , NY

June 28, 2024 at 9:07 AM

312-945-0184 reported as a Live Voice or Other. Received on June 28, 2024 at 12:00 AM.
Call for No Subject Provided

Anonymous User from North Aurora, Illinois

June 6, 2024 at 10:41 AM

312-945-7802 reported as a Robocall. Received on June 6, 2024 at 9:25 AM.
Call for Medical & prescriptions

Anonymous User from Crest Hill, Illinois

April 29, 2024 at 11:47 AM

312-945-0313 reported as a Live Voice or Other. Received on April 29, 2024 at 11:42 AM.
Call for Warranties & protection plans

Anonymous User from , AR

March 21, 2024 at 6:43 PM

312-945-0971 reported as a Robocall. Received on March 21, 2024 at 5:30 PM.
Call for No Subject Provided

Anonymous User from Chicago, Illinois

March 13, 2024 at 1:26 PM

312-945-9475 reported as a Robocall. Received on March 13, 2024 at 11:53 AM.
Call for Medical & prescriptions

Anonymous User from Clinton, IL

March 7, 2024 at 11:21 PM

None reported as a Prerecorded Voice. Received on March 7, 2024 at 2:47 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-945-7850
Contacted via Wired

Anonymous User from Clinton, Illinois

March 7, 2024 at 6:10 PM

312-945-7850 reported as a Robocall. Received on March 7, 2024 at 2:47 PM.

Anonymous User from Chicago, Illinois

February 20, 2024 at 3:29 PM

312-945-0292 reported as a Robocall. Received on February 16, 2024 at 3:25 PM.
Call for Medical & prescriptions

Anonymous User from , IL

February 2, 2024 at 3:40 PM

312-945-0186 reported as a Robocall. Received on February 1, 2024 at 5:55 PM.
Call for Dropped call or no message

Anonymous User from , IL

February 1, 2024 at 12:22 PM

312-945-9417 reported as a Live Voice or Other. Received on February 1, 2024 at 11:12 AM.

Anonymous User from , IL

November 27, 2023 at 1:58 PM

312-945-8363 reported as a Robocall. Received on November 27, 2023 at 12:43 PM.
Call for Medical & prescriptions

Anonymous User from Plaifield, Illinois

November 27, 2023 at 1:48 PM

312-945-8363 reported as a Robocall. Received on November 27, 2023 at 12:43 PM.
Call for Computer & technical support

Anonymous User from Chicago, Illinois

June 12, 2023 at 2:05 PM

312-945-0288 reported as a Live Voice or Other. Received on June 12, 2023 at 11:55 AM.
Call for Dropped call or no message

Anonymous User from Dallas, Texas

June 6, 2023 at 12:33 PM

312-945-7794 reported as a unwanted call. Received on June 6, 2023 at 11:30 AM.

Anonymous User from , IL

March 20, 2023 at 10:52 AM

312-945-0144 reported as a Robocall. Received on March 18, 2023 at 1:03 PM.

Anonymous User from Chicago, Illinois

March 16, 2023 at 10:31 AM

312-945-0359 reported as a Robocall. Received on March 13, 2023 at 7:50 PM.
Call for Warranties & protection plans

Anonymous User from Chicago, Illinois

March 13, 2023 at 8:53 PM

312-945-0359 reported as a Robocall. Received on March 13, 2023 at 7:50 PM.
Call for Dropped call or no message

Anonymous User from , NY

February 28, 2023 at 11:47 AM

312-945-0862 reported as a Robocall. Received on February 28, 2023 at 11:46 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , IL

February 26, 2023 at 11:01 PM

312-945-6028 reported as a unwanted call. Received on February 26, 2023 at 2:19 PM.
Call for No Subject Provided

Anonymous User from Chicago, Illinois

February 26, 2023 at 4:04 PM

312-945-6028 reported as a Robocall. Received on February 26, 2023 at 2:21 PM.
Call for Dropped call or no message

Anonymous User from , IL

February 26, 2023 at 3:25 PM

312-945-6028 reported as a Robocall. Received on February 26, 2023 at 2:17 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , IL

February 20, 2023 at 12:32 PM

312-945-6162 reported as a Robocall. Received on February 18, 2023 at 2:24 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Chicago, Illinois

February 8, 2023 at 1:09 PM

312-945-9911 reported as a Robocall. Received on February 8, 2023 at 1:00 PM.

Anonymous User from Chicago, Illinois

February 8, 2023 at 1:04 PM

312-945-9911 reported as a Robocall. Received on February 7, 2023 at 3:30 PM.

Anonymous User from , IL

January 19, 2023 at 8:13 PM

312-945-0642 reported as a Robocall. Received on January 19, 2023 at 5:51 PM.

Anonymous User from , OH

June 27, 2016 at 10:37 PM

312-945-2592 reported as a Prerecorded Voice. Received on June 27, 2016 at 3:26 PM.
Telemarketing (including do not call and spoofing) for unknown
Contacted via Wired

Anonymous User from , MI

June 27, 2016 at 7:43 PM

312-945-2592 reported as a Prerecorded Voice. Received on June 27, 2016 at 2:35 PM.
Robocall for unknown
Contacted via Internet (VOIP)

Anonymous User from , OR

January 20, 2015 at 11:17 PM

reported as a Live Voice. Received on January 20, 2015 at 4:00 PM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 312-945-7512
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , PA

January 20, 2015 at 5:39 PM

reported as a Live Voice. Received on January 20, 2015 at 11:17 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 312-945-7505
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , TX

December 30, 2014 at 9:13 PM

312-473-1494 reported as a Live Voice. Received on December 13, 2014 at 1:54 PM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 312-945-7551
Contacted via Wired

Anonymous User from , AZ

December 13, 2014 at 5:31 PM

reported as a Live Voice. Received on December 13, 2014 at 9:15 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 312-945-7551
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , AR

December 12, 2014 at 4:17 PM

312-945-7548 reported as a Live Voice. Received on December 12, 2014 at 9:28 AM.
Telemarketing (including do not call and spoofing) for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , TX

December 2, 2014 at 9:44 PM

reported as a Live Voice. Received on November 13, 2014 at 9:46 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 312-945-7548
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

312-945-0XXX: 312-945-0158 | 312-945-0182 | 312-945-0187 | 312-945-0188 | 312-945-0197 | 312-945-0198 | 312-945-0200 | 312-945-0202 | 312-945-0208 | 312-945-0237 | 312-945-0238 | 312-945-0300 | 312-945-0305 | 312-945-0350 | 312-945-0355 | 312-945-0600 | 312-945-0630 | 312-945-0640 | 312-945-0641 | 312-945-0642 | 312-945-0800 | 312-945-0830 | 312-945-0860 | 312-945-0865 | 312-945-0900 | 312-945-0902 | 312-945-0907 | 312-945-0970 | 312-945-0975 |
312-945-1XXX: 312-945-1800 | 312-945-1840 | 312-945-1845 | 312-945-1847 | 312-945-1852 | 312-945-1887 |
312-945-2XXX: 312-945-2500 | 312-945-2503 | 312-945-2509 | 312-945-2592 | 312-945-2593 | 312-945-2597 |
312-945-3XXX: 312-945-3100 | 312-945-3104 | 312-945-3106 | 312-945-3196 | 312-945-3197 | 312-945-3300 | 312-945-3310 | 312-945-3311 | 312-945-3315 | 312-945-3330 | 312-945-3333 |
312-945-5XXX: 312-945-5000 | 312-945-5001 | 312-945-5050 | 312-945-5080 | 312-945-5083 | 312-945-5088 | 312-945-5600 | 312-945-5606 | 312-945-5650 | 312-945-5670 | 312-945-5675 | 312-945-5800 | 312-945-5801 | 312-945-5808 | 312-945-5820 |
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312-945-8XXX: 312-945-8300 | 312-945-8303 | 312-945-8320 | 312-945-8370 | 312-945-8373 | 312-945-8375 | 312-945-8500 | 312-945-8501 | 312-945-8510 | 312-945-8511 | 312-945-8515 | 312-945-8558 | 312-945-8600 | 312-945-8650 | 312-945-8655 |
312-945-9XXX: 312-945-9000 | 312-945-9010 | 312-945-9020 | 312-945-9070 | 312-945-9071 | 312-945-9077 | 312-945-9100 | 312-945-9170 | 312-945-9172 | 312-945-9175 | 312-945-9195 | 312-945-9197 | 312-945-9300 | 312-945-9303 | 312-945-9305 | 312-945-9330 | 312-945-9400 | 312-945-9405 | 312-945-9410 | 312-945-9411 | 312-945-9415 | 312-945-9440 | 312-945-9601 | 312-945-9620 | 312-945-9622 | 312-945-9625 | 312-945-9630 | 312-945-9660 | 312-945-9900 | 312-945-9910 | 312-945-9911 | 312-945-9914 | 312-945-9962 |