How to work with geoIP?

Question

PHP

I downloaded the IP database ipgeobase.ru/cgi-bin/Archive.cgi
In it, in the cities.txt file, there are such values

1991 Novoanninsky Volgograd Region Southern Federal District 50.521839 42.664371
1996 Novorossiysk Krasnodar Territory Southern Federal District 44.752861 37.768311

Erm.. are 50.521839 and 42.664371 IP addresses? How to interpret them correctly?
There is another file cidr_optim.txt in it:

39583744 39585791 2.92.0.0 - 2.92.7.255 EN 780
39585792 39586815 2.92.8.0 - 2.92.11.255 EN 2096

Here you can already understand the IP and the country, but it is not clear to which city or region it belongs ...

Answer 1

2.92.0.0 - 2.92.7.255 here is the IP range as I understand it