I got a call today, 3/8/17 from 816-000-0000 and since I didn't recognize the number I didn't answer. There was no voicemail and I don't order from CMS Caremark or any online pharmacy for any prescriptions. To me it's a bogus spam call.
I have received numerous calls from this number and if I answer there is silence and then a click. If I let my answering machine get it they just hang up.
Marcy, I used to have a business and the same thing happened to me. Ended up going out of business. Sounds like the very same thing. Are you losing business or customers. Please let me know.
This is a prefix in Missour, per a web search it comes up as the Kansas City Party Bus company. Their website is http://www.kansascitypartybus.net/kansascitypartybus-contact.html.