The same fiber I have for 10gbps can be used for 400gbps... just by changing sfp modules.
Same logic for interstate. You lay fiber once and scale equipment as needed. If you already have the fiber there then just use better modules.
Same logic for interstate. You lay fiber once and scale equipment as needed. If you already have the fiber there then just use better modules.
If ISPs sell you a bandwidth per month they should deliver it.
You're the one that's short changed if you accept the throttling.