" ...  I hung up and went directly to my credit card's website
  and found that it hadn't been suspended."

If somebody had been monitoring your phone line/internet
connection, now they have your credit card number.

This might be a trick of the NATIONAL SECURITY AGENCY
to associate  credit card numbers to each line.

it's a telemarketer of some sort. I got a call from them and they did not leave a voice mail. i called the number back, and pressed "2" to be put onto the "do no call" list. according to the recording it will take 48hrs to process, which means that they will probably just transfer my number to the call list of another associated number. I cannot stand these telemarketing tactics!

I got a call 6 hours ago from this (773) 945-5540 and I have an app called Current Caller ID where it shows who the number is from and the location and it says it's from Medicaltreatmnt Chicago, IL and I'm like why are they calling me and why did they not leave a message. I am from Gary, Indiana and I don't know anyone from this number nor do I go to any hospital or doctor's office all the way in Chicago, IL.

spam calls from this number

Called my cell phone - hung up.  I hate spammers....... blocked.

called my cell phone.  No one on line, no message.

Called my cell phone on June 12; 1:19pm.  Id read "no name".  The usual-I didn't answer, they didn't leave a message.

was a Computer that was made to sound like a Human female talking.

it was wanting to "Give" me some pain med samples for all my pain needs... i needed to answer a few questions.

i said "Remove me from your calling list" and it said "NO!, please accept our apologies" and hung up.

Received a call and hang up from this number. The caller ID says Medical Treatment. I would beware as it appears to be a scammer.

Received a call from this number at 9:45 am on June 6th.  Caller I.D. said Chicago, IL.

they were barking up the wrong tree!
Reported and blocked!!

No message..returned call wouldn't go thru.. so I used call block., HA!

My foreign friend continues to receive these kinds of calls & is so confused.  These people are sharks & prey upon such people!!  Have they NO SHAME???!!!!!  I have added her phone number to the Do Not Call list & can only hope that helps some!

I don't know what I had. When they called me, it was a pre recorded message that responded to me and from there I hung up

called, but didn't leave a message.  it's now in my call blocker!

I got whT sounded like a pre recorded message that was responding to what I was saying. They called about a free topical cream of some sort, I hung up before she could get it all out! Something needs to be done about these telemarketers.

answered they hung up

I've received two calls from this number. The most recent is today. It is a recorded message that says your credit card account  with a specific bank has been "locked" and you are to press "1" to continue. If you do I am sure they will ask you for your credit card or account number and then you are screwed. The first time they called; I hung up and went directly to my credit card's website and found that it hadn't been suspended. Then I filed a scam report with the credit card company. Don't have anything to do with these scam calls. If you are in doubt about your account, call the credit card company directly.

Unknown and no message left.