[wrvond]

For future reference, the Party Plan allows four or more users to have unlimited and unthrottled* data for $25.00 per month per line. If one of the four lines is closed, the rates for the other three go back up.
This has spawned Face Book Party Plans because there is no maximum number of lines in a party. So if you have 75 people in your party, the likelyhood of 72 of them quitting is rather low.
Members of the party plan get their own bill with no contact between them and no information shared between them. If you are a member of a party plan, all you know is if your party has four or more members.

*There are times when certain towers experience high volume traffic. At these times data speed may temporarily suffer.

I very nearly signed up for Visible for my camper's router but learned that some people have reported spotty performance when using the Visible sim in their WIFI router. I've got the WiFiRanger Osprey and last I checked only AT&T is certified to work with that router.