Interesting question about the internet.?

[Boriqua]

A few months back I lost complete internet (house only) for about a week. All my friends also lost internet, and family within my city lost internet. Not everyone has the same service provider. What would have been the cause for that week long "black out"? I had phone internet, but not for my laptop or computer. Same goes to my friends.

It's not exactly a bad thing, I'm just curious for what answers I will be receiving.
Well, I don't see all different service providers upgrading - but regardless if anything I've seen a downgrade.
An extreme power outage case does seem possible. Didn't think of that, for some reason.