Might as well add mine:
- Name of ISP: Verizon
- Country of Residence: USA (Maryland)
- When does the problem occur: All the time.

Ran a ping test for roughly 10 hours yesterday:


12 Hour Graph:





6 Hour Graph:





3 Hour Graph: You can see one of the spikes as it is happening here





1 Hour Graph:



Obviously there is some interference with what is happening on my own network at busy times, but the general lag spikes on Hop 11 and Hop 12 are consistent and frequent from 100-200+ ms. Everything else is usually under 50ms at any given time (along with Hop 11 and 12 when not spiking).