Menu
As we all know, there are many databases that can be used to return the country from a given IP address. I'm wondering about how do those database providers get these info from? who tells them that this IP address is located in that country and not another? is there a script that resolves these IPs or do they get many databases from every ISP and compile them into one? anyone has an idea?
Thanks
693
Imp You can't get the country "just by looking at an IP address". Our service, IPinfo.io, infers the geographic location of IPs by pulling in many different data sources, and performing active scans across all IP addresses, and then publishes the results daily.
The LITE edition is an open-source version of IP database with limited accuracy. It is free for personal or commercial use with attribution required.
There are 232 (over four billion) IP addresses in the IPv4 protocol. Of these, almost 600 million are reserved and cannot be used for public routing. The rest are allocated to countries by the Internet Assigned Numbers Authority (IANA) via the regional Internet registries (RIRs).
DB-IP is an online geolocation IP database. Users can look up IP addresses to find out locations of the IP addresses, as well as download and access the IP database. The DB-IP API allows developers to access and integrate the functionality of DB-IP with other applications.
Those databases are based primary on the information from the five RIRs that actually manage, allocate and register the ip addresses space. They also manage Autonomous System (AS) numbers within a defined region. The RIRs are :
This method is not perfect and is improved by various datamining, database merging between database maintainers and other methods such as analysis of user submitted data.
70
I suspect they start at the IANA site to find the regional numbering authorities and work there way down to compile the info.
They also have this link which contains some top level info in xml format: http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xml
26
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
