I live in RIchmond, BC, and I've been having constant lag spikes at all points of the day. I use a Cisco DPC3825 modem/router and tried resetting it and replacing the ethernet cable to no effect. Gaming has been extremely difficult, as my ping can spike from ~20 ms to over 7000 ms at the most extreme cases. It's not just my desktop pc, as it also affects my phone on wifi. It's also not just my house, as friends from my area also experience spikes.
I attached a simple ping test to google.ca on both my desktop and phone. I can see the spiking happening within a minute.