Area code 240
Krystal is reporting 240-672-0049:

I was getting these multiple calls daily for days and was getting really irritated because they wouldn't stop. It didn't matter how nicely I asked them. So, with great pleasure, I'm here to say there is an efficient way to stop these harassing phone calls, call 866-246-7196. Give the caller's and receiving phone number. After their 48 business hours processing times, the calls will stop.

Reported 25, May. 2015.
Anonymous is reporting 240-204-8750:

they keep calling me saying I am approved for a payday loan, which I have not applied for any!

Reported 22, May. 2015.
micky is reporting 240-722-1925:

Answered call, asked for me by name, sounded very much like a telemarketing to me, told him I was busy and hung up

Reported 18, May. 2015.
Anonymous is reporting 240-506-8923:

Called at 9:40 5/14/15 No message

Reported 14, May. 2015.
Anonymous is reporting 240-669-2494:

Got a text to enter a recorder verification code. I called the number and all I got was "Begin recording....." I hung up

Reported 13, May. 2015.
Anonymous is reporting 240-308-7005:

I received 5 phone calls from this number. Never left a message. When I put the number in Google, I stumbled on this site. After reading the entry about checking car insurance, now I know what it's about.

Reported 13, May. 2015.
Anonymous is reporting 240-438-5131:

also calls from the same area code/exchange different extension

Reported 13, May. 2015.
Anonymous is reporting 240-374-4558:

When we answer he is abusive and rude.

Reported 12, May. 2015.
Gus is reporting 240-720-2202:

Call hang up at 944 am PDT. Obviously a scam call since no one in Maryland would be calling Nevada for "whatever" they are pushing. They hung up before the answering machine even finished. Good "hint" it is fraud call.

Reported 11, May. 2015.
Anonymous is reporting 240-401-1619:

We've asked them to not call.

Reported 11, May. 2015.
Anonymous is reporting 240-232-2297:

We received one at 4 today and one at 4:03.

Reported 11, May. 2015.
Anonymous is reporting 240-242-7540:

Today, I pressed 1 and asked a very rude woman to remove me from the list.

Reported 8, May. 2015.
Exchanges in the area code 240, Maryland