312-421 PHONE NUMBERS DIRECTORY

To make looking up a phone number easier when you’re not sure about the last 4 digits, we grouped them below by hundreds.

(312) 421-xxxx Phone Numbers grouped by hundreds

00XX - 09XX
Total Reported Spam Calls : 269
10XX - 19XX
Total Reported Spam Calls : 473
30XX - 39XX
Total Reported Spam Calls : 479
50XX - 59XX
Total Reported Spam Calls : 526
60XX - 69XX
Total Reported Spam Calls : 339
70XX - 79XX
Total Reported Spam Calls : 517
80XX - 89XX
Total Reported Spam Calls : 344
90XX - 99XX
Total Reported Spam Calls : 411
The 312-421-XXXX area code prefix is located in Chicago, Illinois including Northbrook, Wheeling and was originally put into service on February 4th 1994. Run a search and find out who's calling you now.

Recently Reported Numbers

(312) 421-1335Dangerous

Didn't recognize the number so I didn't pick up. They did not leave any message - called 3 times.

(312) 421-6782Unknown

Missed call no voice mail 6:36pm Tuesday

(312) 421-5343Unknown

Called me and didn’t answer. They didn’t leave a voicemail.

(312) 421-8519Neutral

Democrats playing the blame game. She should be asking for all the illegal immigrants instead of Democratic voters.A damn shame. Get real people!!!!!.

(312) 421-9447Neutral

People keep calling, no VM but will call back several times during the day.

(312) 421-5756Neutral

Political robocall

(312) 421-1014Dangerous

A lady called from 727-321-1586 looking for a family member. That a case was being processed against. I Informed the lady that I’m sure if a case in fact was being processed the family member she was looking for would receive legal documents and she hung up on me then immediately called back from a unknown caller ID number and left a voice mail that my address was listed as a likely place she was

(312) 421-4851Dangerous

healthcare survey that wants some verification of 10 digit phone number and other information

(312) 421-5817Dangerous

Fundraising organization for mostly right-wing/conservative organizations. They use many different numbers but never identify themselves in Caller ID. From their website: MDS Communications serves over 100 of the nation's largest and most respected non-profit organizations, Christian ministries and political committees, many of which are household names across the country. Most of our clients have

(312) 421-2432Unknown

Annoyance call block it

(312) 421-5049Dangerous

They called me a few hours ago. The message said it was from Conrad something or other... from the Canadian Red Cross. I deleted the message and blocked the number on my cell phone.To my knowledge The Canadian Red Cross does not call for money. I usually get emails from them (as I’ve given them money in the past).There’s nothing like a pandemic to get the Psychopaths to come out of the woodwork

(312) 421-5709Dangerous

"Your Apple iCloud account has been breached. Do not access your financial records or your banking accounts. Press 1 to stay on the line and to speak to Apple Support"

(312) 421-4741Unknown

Mine did too

(312) 421-5394Dangerous

Said they were with a certain credit card...wanted extra payment made today..said I'd call bank myself...insisted on extra.. hung up..

(312) 421-7999Unknown

called many time. No answer from the other side.

(312) 421-9018Unknown

Same here. Weird is that had personal family information and wanted me to confirm this was a family member.

Recently Searched Numbers

No additional information reported for these searched numbers. Received a call from any phone number listed below? Please consider helping the community by reporting your experience.

312-421-2301
Report
Ameritech Illinois
312-421-7831
Report
Usa Mobility Wireless
312-421-9242
Report
Sprint Spectrum L.p.
312-421-5803
Report
Ameritech Illinois
312-421-2905
Report
UNKNOWN
312-421-8120
Report
Ameritech Illinois
312-421-5982
Report
UNKNOWN
312-421-4640
Report
Ameritech Illinois
312-421-5608
Report
New Cingular Wireless PCS
312-421-4197
Report
Sprint Spectrum L.p.
312-421-6073
Report
New Cingular Wireless PCS
312-421-9677
Report
UNKNOWN
312-421-3874
Report
Usa Mobility Wireless
312-421-3138
Report
Ameritech Illinois
312-421-7348
Report
Ameritech Illinois
312-421-8357
Report
UNKNOWN
312-421-3977
Report
Ameritech Illinois
312-421-9497
Report
AT&T; Local

Most searched numbers

Cell
All TimeThis Month
312-421-1080First seen 2018-09-03312-421-6991First seen 2012-03-18
312-421-8378First seen 2011-09-20312-421-6360First seen 2016-01-29
312-421-7414First seen 2015-01-02312-421-8884First seen 2018-08-25
312-421-2432First seen 2017-04-03312-421-9822First seen 2019-11-05
312-421-2179First seen 2015-06-04312-421-2593First seen 2014-03-25
Landline
All TimeThis Month
312-421-6482First seen 2016-03-08312-421-9108First seen 2015-03-31
312-421-3740First seen 2017-05-03312-421-9697First seen 2017-03-08
312-421-9014First seen 2013-06-04312-421-2746First seen 2017-12-09
312-421-2973First seen 2014-07-30312-421-1539First seen 2012-07-28
312-421-3768First seen 2010-06-26312-421-1734First seen 2014-12-23

Cities With coverage

CITY LIST
Chicago
Hinsdale
La Grange Park
Northbrook
Roselle
Wheeling