Google IP Address Ranges

Google introduces its TXT/spf records including all Google’s IP: Google IP address ranges describes ipv4 ranges. describes ipv6 ranges is currently empty.

Now we have list of IPv4 ranges, but we know google provides a public dns service, (for ipv6 2001:4860:4860::8888/2001:4860:4860::8844).
we can treat these two as and or just make it as

IP/CIDR IP Begin IP End Netmask
Google IP Address Ranges by @sskaje:

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