Area code 240
Anonymous is reporting 240-724-1694:

Automatic message with an electric voice left on the answering machine, stating IRS found an illegal activity with me and I need to call this number to settle the case. Scam - IRS never contacts by phone.

Reported 20, Sep. 2014.
Anonymous is reporting 240-409-6657:

RYAN CALLED FROM THE SAME CO. I REPORTED EARLIER ALREADY. THIS TIME IT WAS A DIFFERENT NUMBER.

Reported 19, Sep. 2014.
A.Y is reporting 240-949-7042:

BEWARE!!! IRS SCAM!!! Mofos use real name and badge number of actual IRS employees.

Reported 19, Sep. 2014.
Anonymous is reporting 240-427-1449:

Received 2 calls and have now blocked. What about being on the Do Not Call List??

Reported 19, Sep. 2014.
jasper is reporting 240-555-0112:

PS the number says maryland 240-555-0112 but they claimed they were calling from california.

Reported 16, Sep. 2014.
Scam is reporting 240-561-9514:

This guy told me the same thing when I asked why he was only charging the price of shipping "My pets are like my children, it would be like selling one of my children so that's why I am giving them up for adoption" he was extremely pushy and very defensive when I told him I would only agree to it if I set up the shipping myself in order to avoid being scammed and he became very irate.

Reported 12, Sep. 2014.
Anonymous is reporting 240-949-2202:

Scammer! They are the ones that should be investigated by the IRS. Huge waste of people's time.

Reported 11, Sep. 2014.
Anonymous is reporting 240-252-6763:

I got the same call from the same number. I actually called them back on my work mobile phone and some guy with a "foreign" accent answered. When he realized I was calling from a different number, he asked me which phone number had received the message, to which I replied, "you should know, you called me". Then he mockingly repeated what I had said. I responded, "This sounds like a scam" after which he hung up. My other phone got 4 more voicemails after that from the same caller. What a loser! Listen to the voicemail they leave, complete with grammatical errors. Don't fall for these bozos.

Reported 9, Sep. 2014.
Anonymous is reporting 240-252-4879:

Sounds like an Indian accent, telling me my computer is infected, badly. I said I have antivirus protecting my computer. He said this is eternal not able to be detected through antivirus. Said he needed me to get in front of my computer, turn it on and he would tell me what to do to fix it. I said I'm not an idiot, just mail me instructions and he said he was not allowed to do that. This is definitely a scam, do not fall for it. he said to call 719-966-4210 to verify he was legit.

Reported 8, Sep. 2014.
Rick M is reporting 240-318-1540:

These are Scammers trying to get your money, i.e., illegally. ILLEGALLY! Do you think they care about the Do Not Call list? That only applies to companies that conduct LEGAL business. These shysters operate from Outside the country. The FCC, FTC, the States Attorney General and the Do Not Call list mean absolutely Nothing to these illegal operators. I wait until I get a live person on the line and then I put my 20 years as a sailor to good use and give them a good string of curses that would make the Pope blush! Boy, do they get pissed, and are usually at a loss for words. Priceless! The FCC sponsored a contest to come up with a plan to handle the Robo Callers. I know you heard about it. The winners developed a database of scam callers that you keep up. Upon receiving a call you go to their website and enter 2 things, the number and the caller ID. Once enough people do this and the website people can say definitively that yes, this is a Robo/Scam caller, they can block the call for you. You go to the Free site and get the details and the phone setup requirements. NoMoRobo.com Like I said, it is free to you. I get nothing from these people, I don't know who they are. But it works and I Love It! NoMoRobo.com

Reported 8, Sep. 2014.
Anonymous is reporting 240-299-0928:

Muslim terrorists trying to sell air conditioning. STOP THEM NOW!!

Reported 8, Sep. 2014.
John J. is reporting 240-318-1481:

Waits for answering machine to pick up but leaves no message. Had to block number with Comcast ID. Was calling 3 or 4 times a day for many days.

Reported 6, Sep. 2014.
Exchanges in the area code 240, Maryland