Former Webpass employee here. Was one of the first software eng. hires. This is a great example of a bootstrapped business focused on customer experience that built up with no outside funding (that I know of). Congrats Charles & team.
Great work. I was a customer at 673 W Brannan in SF back in '07. Best residential internet ever.
I'm at 673 for the last few years, it's still great!
The idea of starting an ISP without outside funding (unless you're a millionaire already) is pretty astonishing. Been researching the possibility of this myself recently and costs of infrastructure are simple astronomical.
Going wireless is a lot cheaper. But you are right. They had to have had either founders capital or they took bank loans after they signed contracts.