With IPv4 there's zero chance of that. At most, you could get all the people who were using [Gmail] around that time. With IPv6, mayyybe, but that assumes the h

With IPv4 there's zero chance of that. At most, you could get all the people who were using [Gmail] around that time. With IPv6, mayyybe, but that assumes the hotel does as much data collection as possible and does it correctly.