I was thinking of updating the database, when I came across this thing:
Some fun thing. That's IP2Location.com. I costs money to get the data I wanted: timezone information. Oh well. I better stick to the free one for the time being.
The previous few updates, I was using the database from IP-to-Country. It was not a bad database at all. Most of the countries appeared correctly. Some of the problem is not with the database. It is with IP allocations and maybe the usage of anonymous proxies (there's nothing in this world which is truly 'anoymous', but well, this type of proxy don't send me header information regarding the originating IP address.. )
A few hours ago, I found another IP-to-Country database at http://software77.net/cgi-bin/ip-country/geo-ip.pl. This includes 2 more information: register and assigned date. Although I don't have much uses for that info, I still use it anyway. Lol. It makes not much difference, only 2 more fields to be added into my database.
Currently, all I am dealing with are IPv5. I wonder what will happen in the near future, when IPv6 becomes more common? Lol… I think I shall worry about that in the future! Wahahaha!!!
For now, IPv5-to-Country is good enough. Ok that's about it.