Who called from 6104435530

Yes, just a hang up.  No message.

Many calls; no messages; all hangups.

Didn't pickup but I sensed it was no good

It's RCN. They've called me 4 times in the last week, always in the morning, but will not leave a message and when I call them back the people I talk to say they have no idea why I'm being called. If it's sales calls this is a really great way to assure that I will never use your service.

rec'd call during lunch hour 5.7.10  
caller ID said "unknown"
no message was left
ANNOYING
if this is RCN, who we just cancelled, they are surely wasting their time AND MINE.