Well, while I was googling, I decided to call the number back from my desk phone. It didn't ring. I just heard a repeated robotic female voice say, "This account number is not valid." Then I found a few sites where you could post a note or complain about the calls you have been getting. I always leave feedback. My information could help someone else who gets the same call too. If more people spoke up about these calls, the more proof we can gather to make it stop.
Here are a few of the sites I found that had responses that showed me I was not the only one getting these annoying calls and taught me a few things. Heard of a spoof number?
"Spoofed Numbers: Caution, 808-725-2800 is a "spoofed" number, which means that whoever called you "tricked" your caller ID to display an incorrect phone number. Telemarketers do this so you cannot complain, but they failed... you can still file a complaint here to fight back against unethical telemarketers."
These direct links below will take you to the information of the number that called me, but you can use that as a starting point to search the numbers that have been bugging you.