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312 Area Code Prefixes Directory

Choose a prefix to view phone numbers and related information

Ameritech Illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Allegiance Telecom
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

First Communications LLC
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

United States Cellular Corp. - Illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

AT&T; Local
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Teleport Communications America
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Mcimetro Access Transmission Services LLC
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Access One
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Global Crossing Local Services-il
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Xo Illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Bandwidth.com Clec
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Net Talk.com
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Level 3 Communications
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Neutral Tandem-illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Rcn Telecom Services Of Illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Ovation Communications Of Illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Mci Worldcom Communications
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Us Xchange Of Illinois LLC DBA Choice One Comm Il
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Ymax Communications Corp.
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Pg Telecom Of Illinois Inc.
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Cimco Communications
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Peerless Network Of Illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Broadvox-clec
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Centurylink Communications LLC
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Indiana Paging Ntwk
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Tw Telecom Of Illinois LLC
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Citrix Communications LLC
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Cricket Communications
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

365 Wireless
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Paetec Communications
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

The 312 area code is located in Chicago, Illinois including Northbrook, Wheeling and was originally put into service on February 4th 1994. Find whose number this is.

Recently Reported Numbers

(312) 260-1126Safe

Grub customer service

(312) 846-6717Unknown

Fake credit and student loan services scam call by criminals phoning from India This is a fake credit and student loan services scam call by criminals phoning from India, trying to steal your credit card number, Social Security number, and personal information. There are hundreds of these India scams where they offer to lower the interest rates on a fake student loan that you do not have, con

(312) 465-7817Unknown

Fake pharmacy scam call by criminals phoning from India to steal credit card numbers All these fake "U.S. Pharmacy", "Canadian Pharmacy", and "Pharmacy Network" scams are from criminals robo-dialing from India using different fake Caller ID or disposable VoIP phone numbers every day to steal credit card numbers. The scammer sometimes begins the call by saying your name to try to gain your tru

(312) 634-6806Safe

A blessings from Israel

(312) 634-6806Dangerous

Fellowship of Christians & Jews

(312) 386-7439Dangerous

Call several times looking for someone else

(312) 815-1230Unknown

This is a phantom debt collection scam! This is what the Federal Trade Commission calls a phantom debt collection scam where the scammer pretends to be a debt collector, lawyer, or law enforcement and threatens to sue or arrest you using harassment (repeated phone calls), lies, threats, and intimidation to collect on fake debts that you do not owe. Although more than 95% of all North America

(312) 386-7439Dangerous

Spam it

(312) 653-2877Unknown

Received three calls from this about one minute apart--although this was probably intended to sound urgent, no message was left.

(312) 473-2991Unknown

Trying to find out who owns this phone number.

Recently Unidentified numbers

312 area code numbers that might be spam, scams or that people have reported as unidentified callers

312-335-2534Ameritech Illinois
312-969-5334Cellco Partnership DBA Verizon Wireless
312-942-2778Ameritech Illinois
312-263-7616Ameritech Illinois
312-449-9918American Messaging (am)
312-373-8287Broadwing Communications
312-186-9625UNKNOWN
312-128-5277UNKNOWN
312-943-7103Ameritech Illinois
312-336-5579Ameritech Illinois
312-736-3591UNKNOWN
312-158-2549UNKNOWN
312-863-1330Ovation Communications Of Illinois
312-291-1750Ameritech Illinois
312-936-8255Ameritech Illinois
312-297-8163Ameritech Illinois
312-435-8146Ameritech Illinois
312-452-3226American Messaging (am)
312-967-8707UNKNOWN

Most searched numbers

Cell
All TimeThis Month
312-752-6456First seen 2016-09-01312-623-7480First seen 2011-07-05
312-298-6267First seen 2011-10-03312-150-5593First seen 2012-09-30
312-716-9064First seen 2018-03-05312-861-8302First seen 2017-05-16
312-184-8721First seen 2017-12-15312-353-3663First seen 2017-05-13
312-800-5362First seen 2013-02-24312-803-8781First seen 2012-05-08
Landline
All TimeThis Month
312-750-1447First seen 2011-02-13312-562-3665First seen 2013-02-06
312-908-9562First seen 2016-03-02312-160-5850First seen 2018-02-02
312-829-6674First seen 2013-05-31312-376-8857First seen 2014-06-14
312-668-4067First seen 2019-03-04312-382-9751First seen 2014-08-12
312-139-1690First seen 2016-07-24312-333-7174First seen 2015-03-24

Cities With coverage

CITY LIST
Chicago
Hinsdale
La Grange Park
Northbrook
Roselle
Wheeling