We have caller ID and never answer unless it is a number we recognize or someone we know. The rest can (as Joe Walsh said) "leave a message and maybe I'll call". Have rec'd several calls from this number with never a message and so I got curious and looked. Yup same thing Harrington, DE. So, thank you Jen - hey maybe if I'm in an "evil" mood the next time I'll answer and tell them how I feel about [***].
I guess I'm lucky -- I only recieve one or two calls a day. I never answer anyway unless I recognize the number or if I find out they are bill collectors as I know the call is not for me and I ask them to stop. I don't know why they persist when day-after-day no one answers. I know it's annoying, but I choose not to be rude to these type of callers as they are only attempting to make a living. We can all count ourselves fortunate if we don't have to work in these types of jobs.
This number has called here several times, and I don't answer. They don't leave a message, and I'm pretty sure it's not someone we know. I wish they'd stop!