I also got a call from this number.  Person asked for my husband by name and said he was calling from Care Maple Leaf.  He claimed it was about baseball tickets they sell fundraising for the children's charity every year.  I was highly suspicious as I'd never heard of his organization before and know we've never bought baseball tickets ever, he hurriedly said he must have dialed the wrong number and hung up.  I tried to look up this organization but do not find them listed anywhere.  Sounds like a scam.

who is calling me

I got a call.  They asked for my husband and when I told them that he was at work they said "oh we're just a local charity, we'll call back later", and then they hung up on me.

called twice. could be nb

this number keeps calling me with no one at the other end