240-865-7013

this showed up on our phone bill as a number that called our home 800 number; three times!!

It is not fraud.  I just dealt with Vonage on this issue.  A bug in Vonage's CallerID system (with phone numbers that had been ported to Vonage from another carrier, especially AT&T) can randomly display 240-865-7013 or 646-556-6196 (or perhaps other numbers) in place of the Vonage user's CallerID info.  Attempts to call these bogus numbers will likely result in a message along the lines of "We're sorry, your call did not go thru. Please try again." or "All circuits are busy." or just a repeated tone which indicates an invalid number, etc, etc.

Vonage notes that a support ticket typically resolves this issue.  Customer Service Reps can activate a monitoring tool, then have you unplug/replug the Vonage adapter, and then make 3 test calls.  This activates the monitoring tool and allows their *engineers* to see the incorrect CallerID info that is being displayed to the receiving party. (I say engineers here, b/c the Customer Service Reps themselves don't have access to the data generated from this tool)

If you are a Vonage customer, and your number was ported from another carrier, and you would like to see if you are affected, here are some steps you can follow:

1) Call a phone number which attempts to recite your number back to you (such as PayPal's Customer Service number: 866-837-1851 - which says "We see you are calling from.....")
2) If it recites the correct number to you, then call any other number (such as AT&T's 877-325-0445, or Comcast's 800-266-2278), then hangup and call that same number in #1 again.
3) Repeat #2 until you hear an incorrect number recited.

Those steps above, including those same phone numbers in the steps, were enough to reproduce this issue for Vonage.

Here are related threads:
- https://800notes.com/Phone.aspx/1-240-865-7013
- https://800notes.com/Phone.aspx/1-646-556-6196

Thanks,
-Aaron