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by swarnie_ 2253 days ago
> ISPs or dark fiber providers have detailed maps aligning with road networks.

Most of the time. I worked a summer for Virgin (UK) basically digging holes to run cables.

I'd say 1 in every 6-7 jobs we dug the hole and found no existing Virgin inf. in the ground. You'd have to come back the next day hopefully with better information to try again.