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Reference : Packet list columns : Special address ranges
Special address ranges
There are several special cases where country information will not be available for certain IP ranges:
Private Network: IPv4 addresses in the ranges 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, and 169.254.0.0/16 are private networks, and their location cannot be determined. They classified as ‘Private Network.’ This also applies to IPv6, with ranges fd00::/8 and fe80::/10.
Multicast: IP multicast addresses shall be classified as ‘Multicast.’ These are IPv4 range 224.0.0.0/4 and IPv6 range ff00://8.
Unknown: Any addresses not in the ranges above, but not in the Geo IP database are classified as ‘Unknown.’