Bulgarian & Non-Bulgarian IPv6/IPv4 looking glass
2.144.0.0/14
2.144.0.0/20
2.144.16.0/20
2.144.32.0/20
2.144.48.0/20
2.144.64.0/20
2.144.80.0/20
2.144.96.0/20
2.144.112.0/20
2.144.128.0/20
2.144.144.0/20
2.144.160.0/20
2.144.176.0/20
2.144.192.0/20
...