Just to show how huge IPv6 is

ipv6allocations.py

from collections import defaultdict
import requests
import csv
import ipaddress

import datetime
print(f'# {datetime.datetime.utcnow()}')

assignmentsFile = requests.get('https://www.iana.org/assignments/ipv6-unicast-address-assignments/ipv6-unicast-address-assignments.csv')
assignmentsFile.raise_for_status()

globalNetwork = ipaddress.ip_network('2000::/3')
totals = defaultdict(int)

for line in csv.DictReader(assignmentsFile.text.split('\n')):
	prefixed = ipaddress.ip_network(line['Prefix'])
	if not globalNetwork.supernet_of(prefixed):
		continue

	totals[line['Status']] += prefixed.num_addresses

allv6 = ipaddress.ip_network('::/0')
for status, n in totals.items():
	perc = (n / globalNetwork.num_addresses) * 100
	percAll = (n / allv6.num_addresses) * 100
	print(f'{perc:.5}% of {globalNetwork} has been {status} (which is only {percAll:.5} of ::/0!)')

output.txt

# 2019-08-25 07:13:39.908520
1.1948% of 2000::/3 has been ALLOCATED (which is only 0.14935 of ::/0!)
59.387% of 2000::/3 has been RESERVED (which is only 7.4234 of ::/0!)