IPv4 CIDR Information
Class C's CIDR [SUB/SUPER]Net Hex Binary Comment
1/256 /32 255.255.255.255 FFFFFFFF 11111111.11111111.11111111.11111111 HOST
1/128 /31 255.255.255.254 FFFFFFFE 11111111.11111111.11111111.11111110
1/64 /30 255.255.255.252 FFFFFFFC 11111111.11111111.11111111.11111100
1/32 /29 255.255.255.248 FFFFFFF8 11111111.11111111.11111111.11111000
1/16 /28 255.255.255.240 FFFFFFF0 11111111.11111111.11111111.11110000
1/8 /27 255.255.255.224 FFFFFFE0 11111111.11111111.11111111.11100000
1/4 /26 255.255.255.192 FFFFFFC0 11111111.11111111.11111111.11000000
1/2 /25 255.255.255.128 FFFFFF80 11111111.11111111.11111111.10000000
1 /24 255.255.255.0 FFFFFF00 11111111.11111111.11111111.00000000 CLASSIC C
2 /23 255.255.254.0 FFFFFE00 11111111.11111111.11111110.00000000
4 /22 255.255.252.0 FFFFFC00 11111111.11111111.11111100.00000000
8 /21 255.255.248.0 FFFFF800 11111111.11111111.11111000.00000000
16 /20 255.255.240.0 FFFFF000 11111111.11111111.11110000.00000000
32 /19 255.255.224.0 FFFFE000 11111111.11111111.11100000.00000000
64 /18 255.255.192.0 FFFFC000 11111111.11111111.11000000.00000000
128 /17 255.255.128.0 FFFF8000 11111111.11111111.10000000.00000000
256 /16 255.255.0.0 FFFF0000 11111111.11111111.00000000.00000000 CLASSIC B
512 /15 255.254.0.0 FFFE0000 11111111.11111110.00000000.00000000
1024 /14 255.252.0.0 FFFC0000 11111111.11111100.00000000.00000000
2048 /13 255.248.0.0 FFF80000 11111111.11111000.00000000.00000000
4096 /12 255.240.0.0 FFF00000 11111111.11110000.00000000.00000000
8192 /11 255.224.0.0 FFE00000 11111111.11100000.00000000.00000000
16384 /10 255.192.0.0 FFC00000 11111111.11000000.00000000.00000000
32768 /9 255.128.0.0 FF800000 11111111.10000000.00000000.00000000
65536 /8 255.0.0.0 FF000000 11111111.00000000.00000000.00000000 CLASSIC A
----
Bits Network Broadcast Netmask Hostmask
==== ======= ========= ======= ========
/1 0.0.0.0 127.255.255.255 128.0.0.0 127.255.255.255
/1 128.0.0.0 255.255.255.255 128.0.0.0 127.255.255.255
/2 0.0.0.0 63.255.255.255 192.0.0.0 63.255.255.255
/2 64.0.0.0 127.255.255.255 192.0.0.0 63.255.255.255
/2 128.0.0.0 191.255.255.255 192.0.0.0 63.255.255.255
/2 192.0.0.0 255.255.255.255 192.0.0.0 63.255.255.255
/3 0.0.0.0 31.255.255.255 224.0.0.0 31.255.255.255
/3 32.0.0.0 63.255.255.255 224.0.0.0 31.255.255.255
/3 64.0.0.0 95.255.255.255 224.0.0.0 31.255.255.255
/3 96.0.0.0 127.255.255.255 224.0.0.0 31.255.255.255
/3 128.0.0.0 159.255.255.255 224.0.0.0 31.255.255.255
/3 160.0.0.0 191.255.255.255 224.0.0.0 31.255.255.255
/3 192.0.0.0 223.255.255.255 224.0.0.0 31.255.255.255
/3 224.0.0.0 255.255.255.255 224.0.0.0 31.255.255.255
/4 0.0.0.0 15.255.255.255 240.0.0.0 15.255.255.255
/4 16.0.0.0 31.255.255.255 240.0.0.0 15.255.255.255
/4 32.0.0.0 47.255.255.255 240.0.0.0 15.255.255.255
/4 48.0.0.0 63.255.255.255 240.0.0.0 15.255.255.255
/4 64.0.0.0 79.255.255.255 240.0.0.0 15.255.255.255
/4 80.0.0.0 95.255.255.255 240.0.0.0 15.255.255.255
/4 96.0.0.0 111.255.255.255 240.0.0.0 15.255.255.255
/4 112.0.0.0 127.255.255.255 240.0.0.0 15.255.255.255
/4 128.0.0.0 143.255.255.255 240.0.0.0 15.255.255.255
/4 144.0.0.0 159.255.255.255 240.0.0.0 15.255.255.255
/4 160.0.0.0 175.255.255.255 240.0.0.0 15.255.255.255
/4 176.0.0.0 191.255.255.255 240.0.0.0 15.255.255.255
/4 192.0.0.0 207.255.255.255 240.0.0.0 15.255.255.255
/4 208.0.0.0 223.255.255.255 240.0.0.0 15.255.255.255
/4 224.0.0.0 239.255.255.255 240.0.0.0 15.255.255.255
/4 240.0.0.0 255.255.255.255 240.0.0.0 15.255.255.255
/5 0.0.0.0 7.255.255.255 248.0.0.0 7.255.255.255
/5 8.0.0.0 15.255.255.255 248.0.0.0 7.255.255.255
/5 16.0.0.0 23.255.255.255 248.0.0.0 7.255.255.255
/5 24.0.0.0 31.255.255.255 248.0.0.0 7.255.255.255
/5 32.0.0.0 39.255.255.255 248.0.0.0 7.255.255.255
/5 40.0.0.0 47.255.255.255 248.0.0.0 7.255.255.255
/5 48.0.0.0 55.255.255.255 248.0.0.0 7.255.255.255
/5 56.0.0.0 63.255.255.255 248.0.0.0 7.255.255.255
/5 64.0.0.0 71.255.255.255 248.0.0.0 7.255.255.255
/5 72.0.0.0 79.255.255.255 248.0.0.0 7.255.255.255
/5 80.0.0.0 87.255.255.255 248.0.0.0 7.255.255.255
/5 88.0.0.0 95.255.255.255 248.0.0.0 7.255.255.255
/5 96.0.0.0 103.255.255.255 248.0.0.0 7.255.255.255
/5 104.0.0.0 111.255.255.255 248.0.0.0 7.255.255.255
/5 112.0.0.0 119.255.255.255 248.0.0.0 7.255.255.255
/5 120.0.0.0 127.255.255.255 248.0.0.0 7.255.255.255
/5 128.0.0.0 135.255.255.255 248.0.0.0 7.255.255.255
/5 136.0.0.0 143.255.255.255 248.0.0.0 7.255.255.255
/5 144.0.0.0 151.255.255.255 248.0.0.0 7.255.255.255
/5 152.0.0.0 159.255.255.255 248.0.0.0 7.255.255.255
/5 160.0.0.0 167.255.255.255 248.0.0.0 7.255.255.255
/5 168.0.0.0 175.255.255.255 248.0.0.0 7.255.255.255
/5 176.0.0.0 183.255.255.255 248.0.0.0 7.255.255.255
/5 184.0.0.0 191.255.255.255 248.0.0.0 7.255.255.255
/5 192.0.0.0 199.255.255.255 248.0.0.0 7.255.255.255
/5 200.0.0.0 207.255.255.255 248.0.0.0 7.255.255.255
/5 208.0.0.0 215.255.255.255 248.0.0.0 7.255.255.255
/5 216.0.0.0 223.255.255.255 248.0.0.0 7.255.255.255
/5 224.0.0.0 231.255.255.255 248.0.0.0 7.255.255.255
/5 232.0.0.0 239.255.255.255 248.0.0.0 7.255.255.255
/5 240.0.0.0 247.255.255.255 248.0.0.0 7.255.255.255
/5 248.0.0.0 255.255.255.255 248.0.0.0 7.255.255.255
/6 0.0.0.0 3.255.255.255 252.0.0.0 3.255.255.255
/6 4.0.0.0 7.255.255.255 252.0.0.0 3.255.255.255
/6 8.0.0.0 11.255.255.255 252.0.0.0 3.255.255.255
/6 12.0.0.0 15.255.255.255 252.0.0.0 3.255.255.255
/6 16.0.0.0 19.255.255.255 252.0.0.0 3.255.255.255
/6 20.0.0.0 23.255.255.255 252.0.0.0 3.255.255.255
/6 24.0.0.0 27.255.255.255 252.0.0.0 3.255.255.255
/6 28.0.0.0 31.255.255.255 252.0.0.0 3.255.255.255
/6 32.0.0.0 35.255.255.255 252.0.0.0 3.255.255.255
/6 36.0.0.0 39.255.255.255 252.0.0.0 3.255.255.255
/6 40.0.0.0 43.255.255.255 252.0.0.0 3.255.255.255
/6 44.0.0.0 47.255.255.255 252.0.0.0 3.255.255.255
/6 48.0.0.0 51.255.255.255 252.0.0.0 3.255.255.255
/6 52.0.0.0 55.255.255.255 252.0.0.0 3.255.255.255
/6 56.0.0.0 59.255.255.255 252.0.0.0 3.255.255.255
/6 60.0.0.0 63.255.255.255 252.0.0.0 3.255.255.255
/6 64.0.0.0 67.255.255.255 252.0.0.0 3.255.255.255
/6 68.0.0.0 71.255.255.255 252.0.0.0 3.255.255.255
/6 72.0.0.0 75.255.255.255 252.0.0.0 3.255.255.255
/6 76.0.0.0 79.255.255.255 252.0.0.0 3.255.255.255
/6 80.0.0.0 83.255.255.255 252.0.0.0 3.255.255.255
/6 84.0.0.0 87.255.255.255 252.0.0.0 3.255.255.255
/6 88.0.0.0 91.255.255.255 252.0.0.0 3.255.255.255
/6 92.0.0.0 95.255.255.255 252.0.0.0 3.255.255.255
/6 96.0.0.0 99.255.255.255 252.0.0.0 3.255.255.255
/6 100.0.0.0 103.255.255.255 252.0.0.0 3.255.255.255
/6 104.0.0.0 107.255.255.255 252.0.0.0 3.255.255.255
/6 108.0.0.0 111.255.255.255 252.0.0.0 3.255.255.255
/6 112.0.0.0 115.255.255.255 252.0.0.0 3.255.255.255
/6 116.0.0.0 119.255.255.255 252.0.0.0 3.255.255.255
/6 120.0.0.0 123.255.255.255 252.0.0.0 3.255.255.255
/6 124.0.0.0 127.255.255.255 252.0.0.0 3.255.255.255
/6 128.0.0.0 131.255.255.255 252.0.0.0 3.255.255.255
/6 132.0.0.0 135.255.255.255 252.0.0.0 3.255.255.255
/6 136.0.0.0 139.255.255.255 252.0.0.0 3.255.255.255
/6 140.0.0.0 143.255.255.255 252.0.0.0 3.255.255.255
/6 144.0.0.0 147.255.255.255 252.0.0.0 3.255.255.255
/6 148.0.0.0 151.255.255.255 252.0.0.0 3.255.255.255
/6 152.0.0.0 155.255.255.255 252.0.0.0 3.255.255.255
/6 156.0.0.0 159.255.255.255 252.0.0.0 3.255.255.255
/6 160.0.0.0 163.255.255.255 252.0.0.0 3.255.255.255
/6 164.0.0.0 167.255.255.255 252.0.0.0 3.255.255.255
/6 168.0.0.0 171.255.255.255 252.0.0.0 3.255.255.255
/6 172.0.0.0 175.255.255.255 252.0.0.0 3.255.255.255
/6 176.0.0.0 179.255.255.255 252.0.0.0 3.255.255.255
/6 180.0.0.0 183.255.255.255 252.0.0.0 3.255.255.255
/6 184.0.0.0 187.255.255.255 252.0.0.0 3.255.255.255
/6 188.0.0.0 191.255.255.255 252.0.0.0 3.255.255.255
/6 192.0.0.0 195.255.255.255 252.0.0.0 3.255.255.255
/6 196.0.0.0 199.255.255.255 252.0.0.0 3.255.255.255
/6 200.0.0.0 203.255.255.255 252.0.0.0 3.255.255.255
/6 204.0.0.0 207.255.255.255 252.0.0.0 3.255.255.255
/6 208.0.0.0 211.255.255.255 252.0.0.0 3.255.255.255
/6 212.0.0.0 215.255.255.255 252.0.0.0 3.255.255.255
/6 216.0.0.0 219.255.255.255 252.0.0.0 3.255.255.255
/6 220.0.0.0 223.255.255.255 252.0.0.0 3.255.255.255
/6 224.0.0.0 227.255.255.255 252.0.0.0 3.255.255.255
/6 228.0.0.0 231.255.255.255 252.0.0.0 3.255.255.255
/6 232.0.0.0 235.255.255.255 252.0.0.0 3.255.255.255
/6 236.0.0.0 239.255.255.255 252.0.0.0 3.255.255.255
/6 240.0.0.0 243.255.255.255 252.0.0.0 3.255.255.255
/6 244.0.0.0 247.255.255.255 252.0.0.0 3.255.255.255
/6 248.0.0.0 251.255.255.255 252.0.0.0 3.255.255.255
/6 252.0.0.0 255.255.255.255 252.0.0.0 3.255.255.255
/7 0.0.0.0 1.255.255.255 254.0.0.0 1.255.255.255
/7 2.0.0.0 3.255.255.255 254.0.0.0 1.255.255.255
/7 4.0.0.0 5.255.255.255 254.0.0.0 1.255.255.255
/7 6.0.0.0 7.255.255.255 254.0.0.0 1.255.255.255
/7 8.0.0.0 9.255.255.255 254.0.0.0 1.255.255.255
/7 10.0.0.0 11.255.255.255 254.0.0.0 1.255.255.255
/7 12.0.0.0 13.255.255.255 254.0.0.0 1.255.255.255
/7 14.0.0.0 15.255.255.255 254.0.0.0 1.255.255.255
/7 16.0.0.0 17.255.255.255 254.0.0.0 1.255.255.255
/7 18.0.0.0 19.255.255.255 254.0.0.0 1.255.255.255
/7 20.0.0.0 21.255.255.255 254.0.0.0 1.255.255.255
/7 22.0.0.0 23.255.255.255 254.0.0.0 1.255.255.255
/7 24.0.0.0 25.255.255.255 254.0.0.0 1.255.255.255
/7 26.0.0.0 27.255.255.255 254.0.0.0 1.255.255.255
/7 28.0.0.0 29.255.255.255 254.0.0.0 1.255.255.255
/7 30.0.0.0 31.255.255.255 254.0.0.0 1.255.255.255
/7 32.0.0.0 33.255.255.255 254.0.0.0 1.255.255.255
/7 34.0.0.0 35.255.255.255 254.0.0.0 1.255.255.255
/7 36.0.0.0 37.255.255.255 254.0.0.0 1.255.255.255
/7 38.0.0.0 39.255.255.255 254.0.0.0 1.255.255.255
/7 40.0.0.0 41.255.255.255 254.0.0.0 1.255.255.255
/7 42.0.0.0 43.255.255.255 254.0.0.0 1.255.255.255
/7 44.0.0.0 45.255.255.255 254.0.0.0 1.255.255.255
/7 46.0.0.0 47.255.255.255 254.0.0.0 1.255.255.255
/7 48.0.0.0 49.255.255.255 254.0.0.0 1.255.255.255
/7 50.0.0.0 51.255.255.255 254.0.0.0 1.255.255.255
/7 52.0.0.0 53.255.255.255 254.0.0.0 1.255.255.255
/7 54.0.0.0 55.255.255.255 254.0.0.0 1.255.255.255
/7 56.0.0.0 57.255.255.255 254.0.0.0 1.255.255.255
/7 58.0.0.0 59.255.255.255 254.0.0.0 1.255.255.255
/7 60.0.0.0 61.255.255.255 254.0.0.0 1.255.255.255
/7 62.0.0.0 63.255.255.255 254.0.0.0 1.255.255.255
/7 64.0.0.0 65.255.255.255 254.0.0.0 1.255.255.255
/7 66.0.0.0 67.255.255.255 254.0.0.0 1.255.255.255
/7 68.0.0.0 69.255.255.255 254.0.0.0 1.255.255.255
/7 70.0.0.0 71.255.255.255 254.0.0.0 1.255.255.255
/7 72.0.0.0 73.255.255.255 254.0.0.0 1.255.255.255
/7 74.0.0.0 75.255.255.255 254.0.0.0 1.255.255.255
/7 76.0.0.0 77.255.255.255 254.0.0.0 1.255.255.255
/7 78.0.0.0 79.255.255.255 254.0.0.0 1.255.255.255
/7 80.0.0.0 81.255.255.255 254.0.0.0 1.255.255.255
/7 82.0.0.0 83.255.255.255 254.0.0.0 1.255.255.255
/7 84.0.0.0 85.255.255.255 254.0.0.0 1.255.255.255
/7 86.0.0.0 87.255.255.255 254.0.0.0 1.255.255.255
/7 88.0.0.0 89.255.255.255 254.0.0.0 1.255.255.255
/7 90.0.0.0 91.255.255.255 254.0.0.0 1.255.255.255
/7 92.0.0.0 93.255.255.255 254.0.0.0 1.255.255.255
/7 94.0.0.0 95.255.255.255 254.0.0.0 1.255.255.255
/7 96.0.0.0 97.255.255.255 254.0.0.0 1.255.255.255
/7 98.0.0.0 99.255.255.255 254.0.0.0 1.255.255.255
/7 100.0.0.0 101.255.255.255 254.0.0.0 1.255.255.255
/7 102.0.0.0 103.255.255.255 254.0.0.0 1.255.255.255
/7 104.0.0.0 105.255.255.255 254.0.0.0 1.255.255.255
/7 106.0.0.0 107.255.255.255 254.0.0.0 1.255.255.255
/7 108.0.0.0 109.255.255.255 254.0.0.0 1.255.255.255
/7 110.0.0.0 111.255.255.255 254.0.0.0 1.255.255.255
/7 112.0.0.0 113.255.255.255 254.0.0.0 1.255.255.255
/7 114.0.0.0 115.255.255.255 254.0.0.0 1.255.255.255
/7 116.0.0.0 117.255.255.255 254.0.0.0 1.255.255.255
/7 118.0.0.0 119.255.255.255 254.0.0.0 1.255.255.255
/7 120.0.0.0 121.255.255.255 254.0.0.0 1.255.255.255
/7 122.0.0.0 123.255.255.255 254.0.0.0 1.255.255.255
/7 124.0.0.0 125.255.255.255 254.0.0.0 1.255.255.255
/7 126.0.0.0 127.255.255.255 254.0.0.0 1.255.255.255
/7 128.0.0.0 129.255.255.255 254.0.0.0 1.255.255.255
/7 130.0.0.0 131.255.255.255 254.0.0.0 1.255.255.255
/7 132.0.0.0 133.255.255.255 254.0.0.0 1.255.255.255
/7 134.0.0.0 135.255.255.255 254.0.0.0 1.255.255.255
/7 136.0.0.0 137.255.255.255 254.0.0.0 1.255.255.255
/7 138.0.0.0 139.255.255.255 254.0.0.0 1.255.255.255
/7 140.0.0.0 141.255.255.255 254.0.0.0 1.255.255.255
/7 142.0.0.0 143.255.255.255 254.0.0.0 1.255.255.255
/7 144.0.0.0 145.255.255.255 254.0.0.0 1.255.255.255
/7 146.0.0.0 147.255.255.255 254.0.0.0 1.255.255.255
/7 148.0.0.0 149.255.255.255 254.0.0.0 1.255.255.255
/7 150.0.0.0 151.255.255.255 254.0.0.0 1.255.255.255
/7 152.0.0.0 153.255.255.255 254.0.0.0 1.255.255.255
/7 154.0.0.0 155.255.255.255 254.0.0.0 1.255.255.255
/7 156.0.0.0 157.255.255.255 254.0.0.0 1.255.255.255
/7 158.0.0.0 159.255.255.255 254.0.0.0 1.255.255.255
/7 160.0.0.0 161.255.255.255 254.0.0.0 1.255.255.255
/7 162.0.0.0 163.255.255.255 254.0.0.0 1.255.255.255
/7 164.0.0.0 165.255.255.255 254.0.0.0 1.255.255.255
/7 166.0.0.0 167.255.255.255 254.0.0.0 1.255.255.255
/7 168.0.0.0 169.255.255.255 254.0.0.0 1.255.255.255
/7 170.0.0.0 171.255.255.255 254.0.0.0 1.255.255.255
/7 172.0.0.0 173.255.255.255 254.0.0.0 1.255.255.255
/7 174.0.0.0 175.255.255.255 254.0.0.0 1.255.255.255
/7 176.0.0.0 177.255.255.255 254.0.0.0 1.255.255.255
/7 178.0.0.0 179.255.255.255 254.0.0.0 1.255.255.255
/7 180.0.0.0 181.255.255.255 254.0.0.0 1.255.255.255
/7 182.0.0.0 183.255.255.255 254.0.0.0 1.255.255.255
/7 184.0.0.0 185.255.255.255 254.0.0.0 1.255.255.255
/7 186.0.0.0 187.255.255.255 254.0.0.0 1.255.255.255
/7 188.0.0.0 189.255.255.255 254.0.0.0 1.255.255.255
/7 190.0.0.0 191.255.255.255 254.0.0.0 1.255.255.255
/7 192.0.0.0 193.255.255.255 254.0.0.0 1.255.255.255
/7 194.0.0.0 195.255.255.255 254.0.0.0 1.255.255.255
/7 196.0.0.0 197.255.255.255 254.0.0.0 1.255.255.255
/7 198.0.0.0 199.255.255.255 254.0.0.0 1.255.255.255
/7 200.0.0.0 201.255.255.255 254.0.0.0 1.255.255.255
/7 202.0.0.0 203.255.255.255 254.0.0.0 1.255.255.255
/7 204.0.0.0 205.255.255.255 254.0.0.0 1.255.255.255
/7 206.0.0.0 207.255.255.255 254.0.0.0 1.255.255.255
/7 208.0.0.0 209.255.255.255 254.0.0.0 1.255.255.255
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