Who called from 5400361202

Keep getting calls from this number, and they don't leave a message. I answered once, and I could hear people in the background, but then they just hung up.

just had a call....do not know this number.....

Received a call from this number this morning and when hubby told them I wasn't here they hung up on him. Can't call in to this number.

Had a call today, Sunday, from this number.  We were not at home, just saw it on the caller ID.
Tried to return the call to no avail to complain.  Telemarketers are not allowed to call on Sundays!
Plus, our name is on the Do No Call list.