Hello,

> Is anybody of you aware, how the most popular services (Google,
> Zattoo, Facebook, etc) are matching geographic locations to
> ip-adresses ?

Probably a mix between some sources of GeoIP DB such as MaxMind/ip2location, a mix of home-made database (ASN, IPs, latency) and obviously browser locales settings.

Each probably handle it in a different way.

> Now we have a customer located in Germany, so I created a
> inetnum-block with his subnet in ripe-db with country-code DE.
> This was a week ago. The customer is still complaining that he is
> constantly redirected to the swiss-versions of all the services.

You should maybe have given a /24 PI rather than chunking one of your main IP block. I am sure those Geolocating-guy would lookup more often /24 PI than /23 PA for instance.

> Does anybody of you experienced a similar problem ? Does anybody knows
> proper solution ?

Yes, had been given a Greek IP space from RIPE about a year ago or so. After 6-9 months of use it seems that finally most of those GeoIP caught the new location correctly. Only solution: be patient.

> actually there's usually much more information than just country code.
> At least sites like http://adultfriendsfinder.com/ show my town quite > precisely, and my IP is a part of a huge Cablecom pool.

Quite true. They probably got enough money to bust customers.

> I am actually not fully satified with the quality of those ads.

What? The girls doesn't live in your town or they are not hot enough? Just kidding obviously ;)

> When I still resided somewhere between Baden and Bremgarten I was
> recognised as "Otelfingen" (not a real surprise with a
> Cablecom-connection, right?).

It is maybe done on purpose. I can just imagine if they were to display one of these "pheromone-friendly" picture and pretend she's from my town or anywhere close, I would different catch the trap. Best guess, some MBA marketing told them not to.

This being

> Since I changed to our own VDSL I seem to live in Therwil (BL)
> according to the ads. That's over two years now. And I do certainly
> not speak 'Baseldiitsch'.

Interesting. Then it's really true that each region of Switzerland got his own sha-encryption of the German? </welshjoke>

--
Best Regards,
Gregory Agerba


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