And it's still only IPv4.
(Exclude 0.0.0.0 - 0.255.255.255)
1.0.0.0 /8 = 1.0.0.0 - 1.255.255.255
2.0.0.0 /7 = 2.0.0.0 - 3.255.255.255
4.0.0.0 /6 = 4.0.0.0 - 7.255.255.255
8.0.0.0 /7 = 8.0.0.0 - 9.255.255.255
(Exclude 10.0.0.0 - 10.255.255.255)
11.0.0.0 /8 = 11.0.0.0 - 11.255.255.255
12.0.0.0 /6 = 12.0.0.0 - 15.255.255.255
16.0.0.0 /4 = 16.0.0.0 - 31.255.255.255
32.0.0.0 /3 = 32.0.0.0 - 63.255.255.255
64.0.0.0 /3 = 64.0.0.0 - 95.255.255.255
96.0.0.0 /6 = 96.0.0.0 - 99.255.255.255
100.0.0.0 /10 = 100.0.0.0 - 100.63.255.255
(Exclude 100.64.0.0 - 100.127.255.255)
100.128.0.0 /9 = 100.128.0.0 - 100.255.255.255
101.0.0.0 /8 = 101.0.0.0 - 101.255.255.255
102.0.0.0 /7 = 102.0.0.0 - 103.255.255.255
104.0.0.0 /5 = 104.0.0.0 - 111.255.255.255
112.0.0.0 /5 = 112.0.0.0 - 119.255.255.255
120.0.0.0 /6 = 120.0.0.0 - 123.255.255.255
124.0.0.0 /7 = 124.0.0.0 - 125.255.255.255
126.0.0.0 /8 = 126.0.0.0 - 126.255.255.255
(Exclude 127.0.0.0 - 127.255.255.255)
128.0.0.0 /3 = 128.0.0.0 - 159.255.255.255
160.0.0.0 /5 = 160.0.0.0 - 167.255.255.255
168.0.0.0 /8 = 168.0.0.0 - 168.255.255.255
169.0.0.0 /9 = 169.0.0.0 - 169.127.255.255
169.128.0.0 /10 = 169.128.0.0 - 169.191.255.255
169.192.0.0 /11 = 169.192.0.0 - 169.223.255.255
169.224.0.0 /12 = 169.224.0.0 - 169.239.255.255
169.240.0.0 /13 = 169.240.0.0 - 169.247.255.255
169.248.0.0 /14 = 169.248.0.0 - 169.251.255.255
169.252.0.0 /15 = 169.252.0.0 - 169.253.255.255
(Exclude 169.254.0.0 - 169.254.255.255)
169.255.0.0 /16 = 169.255.0.0 - 169.255.255.255
170.0.0.0 /7 = 170.0.0.0 - 171.255.255.255
172.0.0.0 /12 = 172.0.0.0 - 172.15.255.255
(Exclude 172.16.0.0 - 172.31.255.255)
172.32.0.0 /11 = 172.32.0.0 - 172.63.255.255
172.64.0.0 /10 = 172.64.0.0 - 172.127.255.255
172.128.0.0 /9 = 172.128.0.0 - 172.255.255.255
173.0.0.0 /8 = 173.0.0.0 - 173.255.255.255
174.0.0.0 /7 = 174.0.0.0 - 175.255.255.255
176.0.0.0 /4 = 176.0.0.0 - 191.255.255.255
(Exclude 192.0.0.0 - 192.0.0.255)
192.0.1.0 /24 = 192.0.1.0 - 192.0.1.255
(Exclude 192.0.2.0 - 192.0.2.255)
192.0.3.0 /24 = 192.0.3.0 - 192.0.3.255
192.0.4.0 /22 = 192.0.4.0 - 198.0.7.255
192.0.8.0 /21 = 192.0.8.0 - 192.0.15.255
192.0.16.0 /20 = 192.0.16.0 - 192.0.31.255
192.0.32.0 /19 = 192.0.32.0 - 192.0.63.255
192.0.64.0 /18 = 192.0.64.0 - 192.0.127.255
192.0.128.0 /17 = 192.0.128.0 - 192.0.255.255
192.1.0.0 /16 = 192.1.0.0 - 192.1.255.255
192.2.0.0 /15 = 192.2.0.0 - 192.3.255.255
192.4.0.0 /14 = 192.4.0.0 - 192.7.255.255
192.8.0.0 /13 = 192.8.0.0 - 192.15.255.255
192.16.0.0 /12 = 192.16.0.0 - 192.31.255.255
192.32.0.0 /11 = 192.32.0.0 - 192.63.255.255
192.64.0.0 /10 = 192.64.0.0 - 192.127.255.255
192.128.0.0 /11 = 192.128.0.0 - 192.159.255.255
192.160.0.0 /13 = 192.160.0.0 - 192.167.255.255
(Exclude 192.168.0.0 /16)
192.169.0.0 /16 = 192.169.0.0 - 192.169.255.255
192.170.0.0 /15 = 192.170.0.0 - 192.171.255.255
192.172.0.0 /14 = 192.172.0.0 - 192.175.255.255
192.176.0.0 /12 = 192.176.0.0 - 192.191.255.255
192.192.0.0 /10 = 192.192.0.0 - 192.255.255.255
193.0.0.0 /8 = 193.0.0.0 - 193.255.255.255
194.0.0.0 /7 = 194.0.0.0 - 195.255.255.255
196.0.0.0 /7 = 196.0.0.0 - 197.255.255.255
198.0.0.0 /12 = 198.0.0.0 - 198.15.255.255
198.16.0.0 /15 = 198.16.0.0 - 198.17.255.255
(Exclude 198.18.0.0 /15)
198.20.0.0 /14 = 198.20.0.0 - 198.23.255.255
198.24.0.0 /13 = 198.24.0.0 - 198.31.255.255
198.32.0.0 /12 = 198.32.0.0 - 198.47.255.255
198.48.0.0 /15 = 198.48.0.0 - 198.49.255.255
198.50.0.0 /16 = 198.50.0.0 - 198.50.255.255
198.51.0.0 /18 = 198.51.0.0 - 198.51.63.244
198.51.64.0 /19 = 198.51.64.0 - 198.51.95.255
198.51.96.0 /22 = 198.51.96.0 - 198.51.99.255
(Exclude 198.51.100.0/24)
198.51.101.0 /24 = 198.51.101.0 - 198.51.101.255
198.51.102.0 /23 = 198.51.102.0 - 198.51.103.255
198.51.104.0 /21 = 192.51.104.0 - 198.51.111.255
198.51.112.0 /20 = 198.51.112.0 - 198.51.127.255
198.51.128.0 /17 = 198.51.128.0 - 198.51.255.255
198.52.0.0 /14 = 198.52.0.0 - 192.55.255.255
198.56.0.0 /13 = 198.56.0.0 - 198.63.255.255
198.64.0.0 /10 = 198.64.0.0 - 198.127.255.255
198.128.0.0 /9 = 198.128.0.0 - 192.255.255.255
199.0.0.0 /8 = 199.0.0.0 - 199.255.255.255
200.0.0.0 /7 = 200.0.0.0 - 201.255.255.255
202.0.0.0 /8 = 202.0.0.0 - 202.255.255.255
203.0.0.0 /18 = 203.0.0.0 - 203.0.63.255
203.0.64.0 /19 = 203.0.64.0 - 203.0.95.255
203.0.96.0 /20 = 203.0.96.0 - 203.0.111.255
203.0.112.0 /24 = 203.0.112.0 - 203.0.112.255
(Exclude 203.0.113.0/24)
203.0.114.0 /23 = 203.0.114.0 - 203.0.115.255
203.0.116.0 /22 = 203.0.116.0 - 203.0.119.255
203.0.120.0 /21 = 203.0.120.0 - 203.0.127.255
203.0.128.0 /17 = 203.0.128.0 - 203.0.255.255
203.1.0.0 /16 = 203.1.0.0 - 203.1.255.255
203.2.0.0 /15 = 203.2.0.0 - 203.3.255.255
203.4.0.0 /14 = 203.4.0.0 - 203.7.255.255
203.8.0.0 /13 = 203.8.0.0 - 203.15.255.255
203.16.0.0 /12 = 203.16.0.0 - 203.31.255.255
203.32.0.0 /11 = 203.32.0.0 - 203.63.255.255
203.64.0.0 /10 = 203.64.0.0 - 203.127.255.255
203.128.0.0 /9 = 203.128.0.0 - 203.255.255.255
204.0.0.0 /6 = 204.0.0.0 - 207.255.255.255
208.0.0.0 /4 = 208.0.0.0 - 223.255.255.255
(Exclude 224.0.0.0 - 255.255.255.255)
Finally, created an ASA script out of that:
! ASA config-script, subnet-based. (Good for 8.2 and previous)
! This will create a bunch of unnamed network objects that you may or may not hate. YMMV. Also why are you still running 8.2?
object-group network NET-INET-VALID
network-object 1.0.0.0 255.0.0.0
network-object 2.0.0.0 254.0.0.0
network-object 4.0.0.0 252.0.0.0
network-object 8.0.0.0 254.0.0.0
network-object 11.0.0.0 255.0.0.0
network-object 12.0.0.0 252.0.0.0
network-object 16.0.0.0 240.0.0.0
network-object 32.0.0.0 224.0.0.0
network-object 64.0.0.0 224.0.0.0
network-object 96.0.0.0 240.0.0.0
network-object 112.0.0.0 248.0.0.0
network-object 120.0.0.0 252.0.0.0
network-object 124.0.0.0 254.0.0.0
network-object 126.0.0.0 255.0.0.0
network-object 128.0.0.0 224.0.0.0
network-object 160.0.0.0 248.0.0.0
network-object 168.0.0.0 255.0.0.0
network-object 169.0.0.0 255.128.0.0
network-object 169.128.0.0 255.192.0.0
network-object 169.192.0.0 255.224.0.0
network-object 169.224.0.0 255.240.0.0
network-object 169.240.0.0 255.248.0.0
network-object 169.248.0.0 255.252.0.0
network-object 169.252.0.0 255.254.0.0
network-object 169.255.0.0 255.255.0.0
network-object 170.0.0.0 254.0.0.0
network-object 172.0.0.0 255.240.0.0
network-object 172.32.0.0 255.224.0.0
network-object 172.64.0.0 255.192.0.0
network-object 172.128.0.0 255.128.0.0
network-object 173.0.0.0 255.0.0.0
network-object 174.0.0.0 254.0.0.0
network-object 176.0.0.0 240.0.0.0
network-object 192.0.1.0 255.255.255.0
network-object 192.0.3.0 255.255.255.0
network-object 192.0.4.0 255.255.252.0
network-object 192.0.8.0 255.255.248.0
network-object 192.0.16.0 255.255.240.0
network-object 192.0.32.0 255.255.224.0
network-object 192.0.64.0 255.255.192.0
network-object 192.0.128.0 255.255.128.0
network-object 192.1.0.0 255.255.0.0
network-object 192.2.0.0 255.254.0.0
network-object 192.4.0.0 255.252.0.0
network-object 192.8.0.0 255.248.0.0
network-object 192.16.0.0 255.240.0.0
network-object 192.32.0.0 255.224.0.0
network-object 192.64.0.0 255.192.0.0
network-object 192.128.0.0 255.224.0.0
network-object 192.160.0.0 255.248.0.0
network-object 192.169.0.0 255.255.0.0
network-object 192.170.0.0 255.254.0.0
network-object 192.172.0.0 255.252.0.0
network-object 192.176.0.0 255.248.0.0
network-object 192.184.0.0 255.248.0.0
network-object 192.192.0.0 255.192.0.0
network-object 193.0.0.0 255.0.0.0
network-object 194.0.0.0 254.0.0.0
network-object 196.0.0.0 254.0.0.0
network-object 198.0.0.0 255.240.0.0
network-object 198.16.0.0 255.254.0.0
network-object 198.20.0.0 255.252.0.0
network-object 198.24.0.0 255.248.0.0
network-object 198.32.0.0 255.240.0.0
network-object 198.48.0.0 255.254.0.0
network-object 198.50.0.0 255.255.0.0
network-object 198.51.0.0 255.255.192.0
network-object 198.51.64.0 255.255.224.0
network-object 198.51.96.0 255.255.252.0
network-object 198.51.101.0 255.255.255.0
network-object 198.51.102.0 255.255.254.0
network-object 198.51.104.0 255.255.248.0
network-object 198.51.112.0 255.255.240.0
network-object 198.51.128.0 255.255.128.0
network-object 198.52.0.0 255.252.0.0
network-object 198.56.0.0 255.248.0.0
network-object 198.64.0.0 255.192.0.0
network-object 198.128.0.0 255.128.0.0
network-object 199.0.0.0 255.0.0.0
network-object 200.0.0.0 254.0.0.0
network-object 202.0.0.0 255.0.0.0
network-object 203.0.0.0 255.255.192.0
network-object 203.0.64.0 255.255.224.0
network-object 203.0.96.0 255.255.240.0
network-object 203.0.112.0 255.255.255.0
network-object 203.0.114.0 255.255.254.0
network-object 203.0.116.0 255.255.252.0
network-object 203.0.120.0 255.255.248.0
network-object 203.0.128.0 255.255.128.0
network-object 203.1.0.0 255.255.0.0
network-object 203.2.0.0 255.254.0.0
network-object 203.4.0.0 255.252.0.0
network-object 203.8.0.0 255.248.0.0
network-object 203.16.0.0 255.240.0.0
network-object 203.32.0.0 255.224.0.0
network-object 203.64.0.0 255.192.0.0
network-object 203.128.0.0 255.128.0.0
network-object 204.0.0.0 252.0.0.0
network-object 208.0.0.0 240.0.0.0
For ASA 8.3 or later, there's also this much simpler range-based version.
! ASA Config script, Range-based (for ASA 8.3 and up)
!
object network NET-INET-RANGE1
range 1.0.0.0 9.255.255.255
object network NET-INET-RANGE2
range 11.0.0.0 100.63.255.255
object network NET-INET-RANGE3
range 100.128.0.0 126.255.255.255
object network NET-INET-RANGE4
range 128.0.0.0 169.253.255.255
object network NET-INET-RANGE5
range 169.255.0.0 172.15.255.255
object network NET-INET-RANGE6
range 172.32.0.0 191.255.255.255
object network NET-INET-RANGE7
range 192.0.1.0 192.0.1.255
object network NET-INET-RANGE8
range 192.0.3.0 192.88.98.255
object network NET-INET-RANGE9
range 192.88.100.0 192.167.255.255
object network NET-INET-RANGE10
range 192.169.0.0 198.17.255.255
object network NET-INET-RANGE11
range 198.20.0.0 198.51.99.255
object network NET-INET-RANGE12
range 198.51.101.0 203.0.112.255
object network NET-INET-RANGE13
range 203.0.114.0 223.255.255.255
object-group network NET-INET-VALID
network-object object NET-INET-RANGE1
network-object object NET-INET-RANGE2
network-object object NET-INET-RANGE3
network-object object NET-INET-RANGE4
network-object object NET-INET-RANGE5
network-object object NET-INET-RANGE6
network-object object NET-INET-RANGE7
network-object object NET-INET-RANGE8
network-object object NET-INET-RANGE9
network-object object NET-INET-RANGE10
network-object object NET-INET-RANGE11
network-object object NET-INET-RANGE12
network-object object NET-INET-RANGE13