Area code 240
Anonymous is reporting 240-857-6870:

Google search indicates this is a solar energy upgrade scam.

Reported 31, Mar. 2015.
Anonymous is reporting 240-722-1925:

Saturday - 9:48 AM - Didn't answer no message

Reported 28, Mar. 2015.
Anonymous is reporting 240-215-4324:

Collection Agency, Edina, MN.

Reported 28, Mar. 2015.
Roger is reporting 240-212-0338:

Caller ID leaves number visible. No message left on answering machine.

Reported 26, Mar. 2015.
Anonymous is reporting 240-720-3462:

Call multiple times.

Reported 26, Mar. 2015.
Anonymous is reporting 240-297-2990:

This number keeps calling my house and not even leaving messages. It's just plain ANNOYING!!!! PLEASE STOP CALLING!!!!!!!!

Reported 26, Mar. 2015.
Anonymous is reporting 240-640-9574:

At that point I hang up.

Reported 25, Mar. 2015.
Anonymous is reporting 240-374-4638:

Calling several times harassing me and asking for my date of birth.

Reported 25, Mar. 2015.
Anonymous is reporting 240-342-9061:

All on the same day 11/04/2013

Reported 25, Mar. 2015.
Anonymous is reporting 240-342-1106:

unsolicited call, apparent PHISHing attempt

Reported 23, Mar. 2015.
Anonymous is reporting 240-285-6757:

they keep calling from noon till 8:30 pm SEVEN(7) days a week from different numbers including 877-318-7054 and 214-283-1316

Reported 21, Mar. 2015.
Anonymous is reporting 240-206-1985:

tHEY HAVE ALL OF MY INTORMATION.

Reported 20, Mar. 2015.
Exchanges in the area code 240, Maryland