who is this

I had the same call except the other number showing is 1-300-153-9238.. but no message left so i dont know who it is

It rings for exactly 3 times and stops ??

I just had two calls, but no message, from this number tonight. Didn't recognize the number, so I didn't pick it up.

This number called yesterday.  Since I do not pick up calls from unidentified callers, I let it ring.  It continued to ring far beyond the 5 calls allowed by the call answer service, ringing continuously for it seemed at least two minutes.  Very strange.

Called today and I didn't pick up in time, so it went to call answer, but no message. It doesn't come up as a person or business in Search Canada 411.