Re: Similar technical data
@FuzzyWuzzys: That sort of hopeless guesswork is probably why I get geo-IP-ed to Bracknell. Perhaps you live in a country where there are such things as "local ISPs". I can't think of any in the UK.
But the real problem with your algorithm is that is uses existing geo-IP knowledge to locate the router, which makes the information that Netgear have collected utterly worthless to people who do geo-IP, which is what was being suggested.