I've got an old connection log to a website which contains the IP addresses, the user agent string and the timestamp. I want to know how many of them used 3G to access a website as I suspect there is a latency issue.
Now I know that I can use some code to have this info directly from the user.
But I still want to process this old log using only IP addresses even if it is only for one ISP.
I thought I could do that by finding a list of the subnets used for 3g.
Do you think it can be done? Otherwise, what do you suggest?
Hope you can help. Cheers,