So it would be:
# 172.16.0.1/16 -- 172.21.0.1/20- Free to take
# 172.23.0.1/16 - free (but used by old cloud)
# 172.24.0.1/24 - RESERVED it is used internally for OS
# 172.25.0.1/20 - Cloudintern (172.25.0.1 - 172.25.15.254)
# 172.25.16.1/20 - infrastructure (172.25.16.1 - 172.25.31.254)
# 172.25.32.1/20 - persistent (172.25.32.1 - 172.25.47.254)
# 172.25.48.1/20 - transient (172.25.48.1 - 172.25.63.254)
# 172.25.64.1/20 - scratch (172.25.64.1 - 172.25.79.254)
# 172.25.80.1/20 - copr (172.25.80.1 - 172.25.95.254)
# 172.25.96.1/20 -- 172.25.240.1/20 - free
# 172.26.0.1/16 -- 172.31.0.1/16 - free
Comments?