IPv4 subnet table
ClientSplit a parent IPv4 CIDR into equal child subnets of a longer prefix: each row is one child network, its broadcast, and usable host bounds. For a single-prefix breakdown (IPv4/IPv6), use the CIDR calculator first, then return here to enumerate children.
Complements the CIDR calculator. It answers a single CIDR; this page lists every equal child subnet that tiles a parent block. For one-off address math, use the CIDR calculator (IPv4/IPv6).
Input
?
The parent is a CIDR block you want to divide (for example 10.0.0.0/16). The child prefix is the size of every piece (for example 24 = /24). The child value must be longer (larger number) than the parent prefix, or there is no split.
Parent 10.0.0.0 /16 → 256 child /24 subnets.
Table
| # | CIDR | Network | Broadcast | Usable from | Usable to | Addrs in subnet |
|---|---|---|---|---|---|---|
| 1 | 10.0.0.0/24 | 10.0.0.0 | 10.0.0.255 | 10.0.0.1 | 10.0.0.254 | 256 |
| 2 | 10.0.1.0/24 | 10.0.1.0 | 10.0.1.255 | 10.0.1.1 | 10.0.1.254 | 256 |
| 3 | 10.0.2.0/24 | 10.0.2.0 | 10.0.2.255 | 10.0.2.1 | 10.0.2.254 | 256 |
| 4 | 10.0.3.0/24 | 10.0.3.0 | 10.0.3.255 | 10.0.3.1 | 10.0.3.254 | 256 |
| 5 | 10.0.4.0/24 | 10.0.4.0 | 10.0.4.255 | 10.0.4.1 | 10.0.4.254 | 256 |
| 6 | 10.0.5.0/24 | 10.0.5.0 | 10.0.5.255 | 10.0.5.1 | 10.0.5.254 | 256 |
| 7 | 10.0.6.0/24 | 10.0.6.0 | 10.0.6.255 | 10.0.6.1 | 10.0.6.254 | 256 |
| 8 | 10.0.7.0/24 | 10.0.7.0 | 10.0.7.255 | 10.0.7.1 | 10.0.7.254 | 256 |
| 9 | 10.0.8.0/24 | 10.0.8.0 | 10.0.8.255 | 10.0.8.1 | 10.0.8.254 | 256 |
| 10 | 10.0.9.0/24 | 10.0.9.0 | 10.0.9.255 | 10.0.9.1 | 10.0.9.254 | 256 |
| 11 | 10.0.10.0/24 | 10.0.10.0 | 10.0.10.255 | 10.0.10.1 | 10.0.10.254 | 256 |
| 12 | 10.0.11.0/24 | 10.0.11.0 | 10.0.11.255 | 10.0.11.1 | 10.0.11.254 | 256 |
| 13 | 10.0.12.0/24 | 10.0.12.0 | 10.0.12.255 | 10.0.12.1 | 10.0.12.254 | 256 |
| 14 | 10.0.13.0/24 | 10.0.13.0 | 10.0.13.255 | 10.0.13.1 | 10.0.13.254 | 256 |
| 15 | 10.0.14.0/24 | 10.0.14.0 | 10.0.14.255 | 10.0.14.1 | 10.0.14.254 | 256 |
| 16 | 10.0.15.0/24 | 10.0.15.0 | 10.0.15.255 | 10.0.15.1 | 10.0.15.254 | 256 |
| 17 | 10.0.16.0/24 | 10.0.16.0 | 10.0.16.255 | 10.0.16.1 | 10.0.16.254 | 256 |
| 18 | 10.0.17.0/24 | 10.0.17.0 | 10.0.17.255 | 10.0.17.1 | 10.0.17.254 | 256 |
| 19 | 10.0.18.0/24 | 10.0.18.0 | 10.0.18.255 | 10.0.18.1 | 10.0.18.254 | 256 |
| 20 | 10.0.19.0/24 | 10.0.19.0 | 10.0.19.255 | 10.0.19.1 | 10.0.19.254 | 256 |
| 21 | 10.0.20.0/24 | 10.0.20.0 | 10.0.20.255 | 10.0.20.1 | 10.0.20.254 | 256 |
| 22 | 10.0.21.0/24 | 10.0.21.0 | 10.0.21.255 | 10.0.21.1 | 10.0.21.254 | 256 |
| 23 | 10.0.22.0/24 | 10.0.22.0 | 10.0.22.255 | 10.0.22.1 | 10.0.22.254 | 256 |
| 24 | 10.0.23.0/24 | 10.0.23.0 | 10.0.23.255 | 10.0.23.1 | 10.0.23.254 | 256 |
| 25 | 10.0.24.0/24 | 10.0.24.0 | 10.0.24.255 | 10.0.24.1 | 10.0.24.254 | 256 |
| 26 | 10.0.25.0/24 | 10.0.25.0 | 10.0.25.255 | 10.0.25.1 | 10.0.25.254 | 256 |
| 27 | 10.0.26.0/24 | 10.0.26.0 | 10.0.26.255 | 10.0.26.1 | 10.0.26.254 | 256 |
| 28 | 10.0.27.0/24 | 10.0.27.0 | 10.0.27.255 | 10.0.27.1 | 10.0.27.254 | 256 |
| 29 | 10.0.28.0/24 | 10.0.28.0 | 10.0.28.255 | 10.0.28.1 | 10.0.28.254 | 256 |
| 30 | 10.0.29.0/24 | 10.0.29.0 | 10.0.29.255 | 10.0.29.1 | 10.0.29.254 | 256 |
| 31 | 10.0.30.0/24 | 10.0.30.0 | 10.0.30.255 | 10.0.30.1 | 10.0.30.254 | 256 |
| 32 | 10.0.31.0/24 | 10.0.31.0 | 10.0.31.255 | 10.0.31.1 | 10.0.31.254 | 256 |
| 33 | 10.0.32.0/24 | 10.0.32.0 | 10.0.32.255 | 10.0.32.1 | 10.0.32.254 | 256 |
| 34 | 10.0.33.0/24 | 10.0.33.0 | 10.0.33.255 | 10.0.33.1 | 10.0.33.254 | 256 |
| 35 | 10.0.34.0/24 | 10.0.34.0 | 10.0.34.255 | 10.0.34.1 | 10.0.34.254 | 256 |
| 36 | 10.0.35.0/24 | 10.0.35.0 | 10.0.35.255 | 10.0.35.1 | 10.0.35.254 | 256 |
| 37 | 10.0.36.0/24 | 10.0.36.0 | 10.0.36.255 | 10.0.36.1 | 10.0.36.254 | 256 |
| 38 | 10.0.37.0/24 | 10.0.37.0 | 10.0.37.255 | 10.0.37.1 | 10.0.37.254 | 256 |
| 39 | 10.0.38.0/24 | 10.0.38.0 | 10.0.38.255 | 10.0.38.1 | 10.0.38.254 | 256 |
| 40 | 10.0.39.0/24 | 10.0.39.0 | 10.0.39.255 | 10.0.39.1 | 10.0.39.254 | 256 |
| 41 | 10.0.40.0/24 | 10.0.40.0 | 10.0.40.255 | 10.0.40.1 | 10.0.40.254 | 256 |
| 42 | 10.0.41.0/24 | 10.0.41.0 | 10.0.41.255 | 10.0.41.1 | 10.0.41.254 | 256 |
| 43 | 10.0.42.0/24 | 10.0.42.0 | 10.0.42.255 | 10.0.42.1 | 10.0.42.254 | 256 |
| 44 | 10.0.43.0/24 | 10.0.43.0 | 10.0.43.255 | 10.0.43.1 | 10.0.43.254 | 256 |
| 45 | 10.0.44.0/24 | 10.0.44.0 | 10.0.44.255 | 10.0.44.1 | 10.0.44.254 | 256 |
| 46 | 10.0.45.0/24 | 10.0.45.0 | 10.0.45.255 | 10.0.45.1 | 10.0.45.254 | 256 |
| 47 | 10.0.46.0/24 | 10.0.46.0 | 10.0.46.255 | 10.0.46.1 | 10.0.46.254 | 256 |
| 48 | 10.0.47.0/24 | 10.0.47.0 | 10.0.47.255 | 10.0.47.1 | 10.0.47.254 | 256 |
| 49 | 10.0.48.0/24 | 10.0.48.0 | 10.0.48.255 | 10.0.48.1 | 10.0.48.254 | 256 |
| 50 | 10.0.49.0/24 | 10.0.49.0 | 10.0.49.255 | 10.0.49.1 | 10.0.49.254 | 256 |
| 51 | 10.0.50.0/24 | 10.0.50.0 | 10.0.50.255 | 10.0.50.1 | 10.0.50.254 | 256 |
| 52 | 10.0.51.0/24 | 10.0.51.0 | 10.0.51.255 | 10.0.51.1 | 10.0.51.254 | 256 |
| 53 | 10.0.52.0/24 | 10.0.52.0 | 10.0.52.255 | 10.0.52.1 | 10.0.52.254 | 256 |
| 54 | 10.0.53.0/24 | 10.0.53.0 | 10.0.53.255 | 10.0.53.1 | 10.0.53.254 | 256 |
| 55 | 10.0.54.0/24 | 10.0.54.0 | 10.0.54.255 | 10.0.54.1 | 10.0.54.254 | 256 |
| 56 | 10.0.55.0/24 | 10.0.55.0 | 10.0.55.255 | 10.0.55.1 | 10.0.55.254 | 256 |
| 57 | 10.0.56.0/24 | 10.0.56.0 | 10.0.56.255 | 10.0.56.1 | 10.0.56.254 | 256 |
| 58 | 10.0.57.0/24 | 10.0.57.0 | 10.0.57.255 | 10.0.57.1 | 10.0.57.254 | 256 |
| 59 | 10.0.58.0/24 | 10.0.58.0 | 10.0.58.255 | 10.0.58.1 | 10.0.58.254 | 256 |
| 60 | 10.0.59.0/24 | 10.0.59.0 | 10.0.59.255 | 10.0.59.1 | 10.0.59.254 | 256 |
| 61 | 10.0.60.0/24 | 10.0.60.0 | 10.0.60.255 | 10.0.60.1 | 10.0.60.254 | 256 |
| 62 | 10.0.61.0/24 | 10.0.61.0 | 10.0.61.255 | 10.0.61.1 | 10.0.61.254 | 256 |
| 63 | 10.0.62.0/24 | 10.0.62.0 | 10.0.62.255 | 10.0.62.1 | 10.0.62.254 | 256 |
| 64 | 10.0.63.0/24 | 10.0.63.0 | 10.0.63.255 | 10.0.63.1 | 10.0.63.254 | 256 |
| 65 | 10.0.64.0/24 | 10.0.64.0 | 10.0.64.255 | 10.0.64.1 | 10.0.64.254 | 256 |
| 66 | 10.0.65.0/24 | 10.0.65.0 | 10.0.65.255 | 10.0.65.1 | 10.0.65.254 | 256 |
| 67 | 10.0.66.0/24 | 10.0.66.0 | 10.0.66.255 | 10.0.66.1 | 10.0.66.254 | 256 |
| 68 | 10.0.67.0/24 | 10.0.67.0 | 10.0.67.255 | 10.0.67.1 | 10.0.67.254 | 256 |
| 69 | 10.0.68.0/24 | 10.0.68.0 | 10.0.68.255 | 10.0.68.1 | 10.0.68.254 | 256 |
| 70 | 10.0.69.0/24 | 10.0.69.0 | 10.0.69.255 | 10.0.69.1 | 10.0.69.254 | 256 |
| 71 | 10.0.70.0/24 | 10.0.70.0 | 10.0.70.255 | 10.0.70.1 | 10.0.70.254 | 256 |
| 72 | 10.0.71.0/24 | 10.0.71.0 | 10.0.71.255 | 10.0.71.1 | 10.0.71.254 | 256 |
| 73 | 10.0.72.0/24 | 10.0.72.0 | 10.0.72.255 | 10.0.72.1 | 10.0.72.254 | 256 |
| 74 | 10.0.73.0/24 | 10.0.73.0 | 10.0.73.255 | 10.0.73.1 | 10.0.73.254 | 256 |
| 75 | 10.0.74.0/24 | 10.0.74.0 | 10.0.74.255 | 10.0.74.1 | 10.0.74.254 | 256 |
| 76 | 10.0.75.0/24 | 10.0.75.0 | 10.0.75.255 | 10.0.75.1 | 10.0.75.254 | 256 |
| 77 | 10.0.76.0/24 | 10.0.76.0 | 10.0.76.255 | 10.0.76.1 | 10.0.76.254 | 256 |
| 78 | 10.0.77.0/24 | 10.0.77.0 | 10.0.77.255 | 10.0.77.1 | 10.0.77.254 | 256 |
| 79 | 10.0.78.0/24 | 10.0.78.0 | 10.0.78.255 | 10.0.78.1 | 10.0.78.254 | 256 |
| 80 | 10.0.79.0/24 | 10.0.79.0 | 10.0.79.255 | 10.0.79.1 | 10.0.79.254 | 256 |
| 81 | 10.0.80.0/24 | 10.0.80.0 | 10.0.80.255 | 10.0.80.1 | 10.0.80.254 | 256 |
| 82 | 10.0.81.0/24 | 10.0.81.0 | 10.0.81.255 | 10.0.81.1 | 10.0.81.254 | 256 |
| 83 | 10.0.82.0/24 | 10.0.82.0 | 10.0.82.255 | 10.0.82.1 | 10.0.82.254 | 256 |
| 84 | 10.0.83.0/24 | 10.0.83.0 | 10.0.83.255 | 10.0.83.1 | 10.0.83.254 | 256 |
| 85 | 10.0.84.0/24 | 10.0.84.0 | 10.0.84.255 | 10.0.84.1 | 10.0.84.254 | 256 |
| 86 | 10.0.85.0/24 | 10.0.85.0 | 10.0.85.255 | 10.0.85.1 | 10.0.85.254 | 256 |
| 87 | 10.0.86.0/24 | 10.0.86.0 | 10.0.86.255 | 10.0.86.1 | 10.0.86.254 | 256 |
| 88 | 10.0.87.0/24 | 10.0.87.0 | 10.0.87.255 | 10.0.87.1 | 10.0.87.254 | 256 |
| 89 | 10.0.88.0/24 | 10.0.88.0 | 10.0.88.255 | 10.0.88.1 | 10.0.88.254 | 256 |
| 90 | 10.0.89.0/24 | 10.0.89.0 | 10.0.89.255 | 10.0.89.1 | 10.0.89.254 | 256 |
| 91 | 10.0.90.0/24 | 10.0.90.0 | 10.0.90.255 | 10.0.90.1 | 10.0.90.254 | 256 |
| 92 | 10.0.91.0/24 | 10.0.91.0 | 10.0.91.255 | 10.0.91.1 | 10.0.91.254 | 256 |
| 93 | 10.0.92.0/24 | 10.0.92.0 | 10.0.92.255 | 10.0.92.1 | 10.0.92.254 | 256 |
| 94 | 10.0.93.0/24 | 10.0.93.0 | 10.0.93.255 | 10.0.93.1 | 10.0.93.254 | 256 |
| 95 | 10.0.94.0/24 | 10.0.94.0 | 10.0.94.255 | 10.0.94.1 | 10.0.94.254 | 256 |
| 96 | 10.0.95.0/24 | 10.0.95.0 | 10.0.95.255 | 10.0.95.1 | 10.0.95.254 | 256 |
| 97 | 10.0.96.0/24 | 10.0.96.0 | 10.0.96.255 | 10.0.96.1 | 10.0.96.254 | 256 |
| 98 | 10.0.97.0/24 | 10.0.97.0 | 10.0.97.255 | 10.0.97.1 | 10.0.97.254 | 256 |
| 99 | 10.0.98.0/24 | 10.0.98.0 | 10.0.98.255 | 10.0.98.1 | 10.0.98.254 | 256 |
| 100 | 10.0.99.0/24 | 10.0.99.0 | 10.0.99.255 | 10.0.99.1 | 10.0.99.254 | 256 |
| 101 | 10.0.100.0/24 | 10.0.100.0 | 10.0.100.255 | 10.0.100.1 | 10.0.100.254 | 256 |
| 102 | 10.0.101.0/24 | 10.0.101.0 | 10.0.101.255 | 10.0.101.1 | 10.0.101.254 | 256 |
| 103 | 10.0.102.0/24 | 10.0.102.0 | 10.0.102.255 | 10.0.102.1 | 10.0.102.254 | 256 |
| 104 | 10.0.103.0/24 | 10.0.103.0 | 10.0.103.255 | 10.0.103.1 | 10.0.103.254 | 256 |
| 105 | 10.0.104.0/24 | 10.0.104.0 | 10.0.104.255 | 10.0.104.1 | 10.0.104.254 | 256 |
| 106 | 10.0.105.0/24 | 10.0.105.0 | 10.0.105.255 | 10.0.105.1 | 10.0.105.254 | 256 |
| 107 | 10.0.106.0/24 | 10.0.106.0 | 10.0.106.255 | 10.0.106.1 | 10.0.106.254 | 256 |
| 108 | 10.0.107.0/24 | 10.0.107.0 | 10.0.107.255 | 10.0.107.1 | 10.0.107.254 | 256 |
| 109 | 10.0.108.0/24 | 10.0.108.0 | 10.0.108.255 | 10.0.108.1 | 10.0.108.254 | 256 |
| 110 | 10.0.109.0/24 | 10.0.109.0 | 10.0.109.255 | 10.0.109.1 | 10.0.109.254 | 256 |
| 111 | 10.0.110.0/24 | 10.0.110.0 | 10.0.110.255 | 10.0.110.1 | 10.0.110.254 | 256 |
| 112 | 10.0.111.0/24 | 10.0.111.0 | 10.0.111.255 | 10.0.111.1 | 10.0.111.254 | 256 |
| 113 | 10.0.112.0/24 | 10.0.112.0 | 10.0.112.255 | 10.0.112.1 | 10.0.112.254 | 256 |
| 114 | 10.0.113.0/24 | 10.0.113.0 | 10.0.113.255 | 10.0.113.1 | 10.0.113.254 | 256 |
| 115 | 10.0.114.0/24 | 10.0.114.0 | 10.0.114.255 | 10.0.114.1 | 10.0.114.254 | 256 |
| 116 | 10.0.115.0/24 | 10.0.115.0 | 10.0.115.255 | 10.0.115.1 | 10.0.115.254 | 256 |
| 117 | 10.0.116.0/24 | 10.0.116.0 | 10.0.116.255 | 10.0.116.1 | 10.0.116.254 | 256 |
| 118 | 10.0.117.0/24 | 10.0.117.0 | 10.0.117.255 | 10.0.117.1 | 10.0.117.254 | 256 |
| 119 | 10.0.118.0/24 | 10.0.118.0 | 10.0.118.255 | 10.0.118.1 | 10.0.118.254 | 256 |
| 120 | 10.0.119.0/24 | 10.0.119.0 | 10.0.119.255 | 10.0.119.1 | 10.0.119.254 | 256 |
| 121 | 10.0.120.0/24 | 10.0.120.0 | 10.0.120.255 | 10.0.120.1 | 10.0.120.254 | 256 |
| 122 | 10.0.121.0/24 | 10.0.121.0 | 10.0.121.255 | 10.0.121.1 | 10.0.121.254 | 256 |
| 123 | 10.0.122.0/24 | 10.0.122.0 | 10.0.122.255 | 10.0.122.1 | 10.0.122.254 | 256 |
| 124 | 10.0.123.0/24 | 10.0.123.0 | 10.0.123.255 | 10.0.123.1 | 10.0.123.254 | 256 |
| 125 | 10.0.124.0/24 | 10.0.124.0 | 10.0.124.255 | 10.0.124.1 | 10.0.124.254 | 256 |
| 126 | 10.0.125.0/24 | 10.0.125.0 | 10.0.125.255 | 10.0.125.1 | 10.0.125.254 | 256 |
| 127 | 10.0.126.0/24 | 10.0.126.0 | 10.0.126.255 | 10.0.126.1 | 10.0.126.254 | 256 |
| 128 | 10.0.127.0/24 | 10.0.127.0 | 10.0.127.255 | 10.0.127.1 | 10.0.127.254 | 256 |
| 129 | 10.0.128.0/24 | 10.0.128.0 | 10.0.128.255 | 10.0.128.1 | 10.0.128.254 | 256 |
| 130 | 10.0.129.0/24 | 10.0.129.0 | 10.0.129.255 | 10.0.129.1 | 10.0.129.254 | 256 |
| 131 | 10.0.130.0/24 | 10.0.130.0 | 10.0.130.255 | 10.0.130.1 | 10.0.130.254 | 256 |
| 132 | 10.0.131.0/24 | 10.0.131.0 | 10.0.131.255 | 10.0.131.1 | 10.0.131.254 | 256 |
| 133 | 10.0.132.0/24 | 10.0.132.0 | 10.0.132.255 | 10.0.132.1 | 10.0.132.254 | 256 |
| 134 | 10.0.133.0/24 | 10.0.133.0 | 10.0.133.255 | 10.0.133.1 | 10.0.133.254 | 256 |
| 135 | 10.0.134.0/24 | 10.0.134.0 | 10.0.134.255 | 10.0.134.1 | 10.0.134.254 | 256 |
| 136 | 10.0.135.0/24 | 10.0.135.0 | 10.0.135.255 | 10.0.135.1 | 10.0.135.254 | 256 |
| 137 | 10.0.136.0/24 | 10.0.136.0 | 10.0.136.255 | 10.0.136.1 | 10.0.136.254 | 256 |
| 138 | 10.0.137.0/24 | 10.0.137.0 | 10.0.137.255 | 10.0.137.1 | 10.0.137.254 | 256 |
| 139 | 10.0.138.0/24 | 10.0.138.0 | 10.0.138.255 | 10.0.138.1 | 10.0.138.254 | 256 |
| 140 | 10.0.139.0/24 | 10.0.139.0 | 10.0.139.255 | 10.0.139.1 | 10.0.139.254 | 256 |
| 141 | 10.0.140.0/24 | 10.0.140.0 | 10.0.140.255 | 10.0.140.1 | 10.0.140.254 | 256 |
| 142 | 10.0.141.0/24 | 10.0.141.0 | 10.0.141.255 | 10.0.141.1 | 10.0.141.254 | 256 |
| 143 | 10.0.142.0/24 | 10.0.142.0 | 10.0.142.255 | 10.0.142.1 | 10.0.142.254 | 256 |
| 144 | 10.0.143.0/24 | 10.0.143.0 | 10.0.143.255 | 10.0.143.1 | 10.0.143.254 | 256 |
| 145 | 10.0.144.0/24 | 10.0.144.0 | 10.0.144.255 | 10.0.144.1 | 10.0.144.254 | 256 |
| 146 | 10.0.145.0/24 | 10.0.145.0 | 10.0.145.255 | 10.0.145.1 | 10.0.145.254 | 256 |
| 147 | 10.0.146.0/24 | 10.0.146.0 | 10.0.146.255 | 10.0.146.1 | 10.0.146.254 | 256 |
| 148 | 10.0.147.0/24 | 10.0.147.0 | 10.0.147.255 | 10.0.147.1 | 10.0.147.254 | 256 |
| 149 | 10.0.148.0/24 | 10.0.148.0 | 10.0.148.255 | 10.0.148.1 | 10.0.148.254 | 256 |
| 150 | 10.0.149.0/24 | 10.0.149.0 | 10.0.149.255 | 10.0.149.1 | 10.0.149.254 | 256 |
| 151 | 10.0.150.0/24 | 10.0.150.0 | 10.0.150.255 | 10.0.150.1 | 10.0.150.254 | 256 |
| 152 | 10.0.151.0/24 | 10.0.151.0 | 10.0.151.255 | 10.0.151.1 | 10.0.151.254 | 256 |
| 153 | 10.0.152.0/24 | 10.0.152.0 | 10.0.152.255 | 10.0.152.1 | 10.0.152.254 | 256 |
| 154 | 10.0.153.0/24 | 10.0.153.0 | 10.0.153.255 | 10.0.153.1 | 10.0.153.254 | 256 |
| 155 | 10.0.154.0/24 | 10.0.154.0 | 10.0.154.255 | 10.0.154.1 | 10.0.154.254 | 256 |
| 156 | 10.0.155.0/24 | 10.0.155.0 | 10.0.155.255 | 10.0.155.1 | 10.0.155.254 | 256 |
| 157 | 10.0.156.0/24 | 10.0.156.0 | 10.0.156.255 | 10.0.156.1 | 10.0.156.254 | 256 |
| 158 | 10.0.157.0/24 | 10.0.157.0 | 10.0.157.255 | 10.0.157.1 | 10.0.157.254 | 256 |
| 159 | 10.0.158.0/24 | 10.0.158.0 | 10.0.158.255 | 10.0.158.1 | 10.0.158.254 | 256 |
| 160 | 10.0.159.0/24 | 10.0.159.0 | 10.0.159.255 | 10.0.159.1 | 10.0.159.254 | 256 |
| 161 | 10.0.160.0/24 | 10.0.160.0 | 10.0.160.255 | 10.0.160.1 | 10.0.160.254 | 256 |
| 162 | 10.0.161.0/24 | 10.0.161.0 | 10.0.161.255 | 10.0.161.1 | 10.0.161.254 | 256 |
| 163 | 10.0.162.0/24 | 10.0.162.0 | 10.0.162.255 | 10.0.162.1 | 10.0.162.254 | 256 |
| 164 | 10.0.163.0/24 | 10.0.163.0 | 10.0.163.255 | 10.0.163.1 | 10.0.163.254 | 256 |
| 165 | 10.0.164.0/24 | 10.0.164.0 | 10.0.164.255 | 10.0.164.1 | 10.0.164.254 | 256 |
| 166 | 10.0.165.0/24 | 10.0.165.0 | 10.0.165.255 | 10.0.165.1 | 10.0.165.254 | 256 |
| 167 | 10.0.166.0/24 | 10.0.166.0 | 10.0.166.255 | 10.0.166.1 | 10.0.166.254 | 256 |
| 168 | 10.0.167.0/24 | 10.0.167.0 | 10.0.167.255 | 10.0.167.1 | 10.0.167.254 | 256 |
| 169 | 10.0.168.0/24 | 10.0.168.0 | 10.0.168.255 | 10.0.168.1 | 10.0.168.254 | 256 |
| 170 | 10.0.169.0/24 | 10.0.169.0 | 10.0.169.255 | 10.0.169.1 | 10.0.169.254 | 256 |
| 171 | 10.0.170.0/24 | 10.0.170.0 | 10.0.170.255 | 10.0.170.1 | 10.0.170.254 | 256 |
| 172 | 10.0.171.0/24 | 10.0.171.0 | 10.0.171.255 | 10.0.171.1 | 10.0.171.254 | 256 |
| 173 | 10.0.172.0/24 | 10.0.172.0 | 10.0.172.255 | 10.0.172.1 | 10.0.172.254 | 256 |
| 174 | 10.0.173.0/24 | 10.0.173.0 | 10.0.173.255 | 10.0.173.1 | 10.0.173.254 | 256 |
| 175 | 10.0.174.0/24 | 10.0.174.0 | 10.0.174.255 | 10.0.174.1 | 10.0.174.254 | 256 |
| 176 | 10.0.175.0/24 | 10.0.175.0 | 10.0.175.255 | 10.0.175.1 | 10.0.175.254 | 256 |
| 177 | 10.0.176.0/24 | 10.0.176.0 | 10.0.176.255 | 10.0.176.1 | 10.0.176.254 | 256 |
| 178 | 10.0.177.0/24 | 10.0.177.0 | 10.0.177.255 | 10.0.177.1 | 10.0.177.254 | 256 |
| 179 | 10.0.178.0/24 | 10.0.178.0 | 10.0.178.255 | 10.0.178.1 | 10.0.178.254 | 256 |
| 180 | 10.0.179.0/24 | 10.0.179.0 | 10.0.179.255 | 10.0.179.1 | 10.0.179.254 | 256 |
| 181 | 10.0.180.0/24 | 10.0.180.0 | 10.0.180.255 | 10.0.180.1 | 10.0.180.254 | 256 |
| 182 | 10.0.181.0/24 | 10.0.181.0 | 10.0.181.255 | 10.0.181.1 | 10.0.181.254 | 256 |
| 183 | 10.0.182.0/24 | 10.0.182.0 | 10.0.182.255 | 10.0.182.1 | 10.0.182.254 | 256 |
| 184 | 10.0.183.0/24 | 10.0.183.0 | 10.0.183.255 | 10.0.183.1 | 10.0.183.254 | 256 |
| 185 | 10.0.184.0/24 | 10.0.184.0 | 10.0.184.255 | 10.0.184.1 | 10.0.184.254 | 256 |
| 186 | 10.0.185.0/24 | 10.0.185.0 | 10.0.185.255 | 10.0.185.1 | 10.0.185.254 | 256 |
| 187 | 10.0.186.0/24 | 10.0.186.0 | 10.0.186.255 | 10.0.186.1 | 10.0.186.254 | 256 |
| 188 | 10.0.187.0/24 | 10.0.187.0 | 10.0.187.255 | 10.0.187.1 | 10.0.187.254 | 256 |
| 189 | 10.0.188.0/24 | 10.0.188.0 | 10.0.188.255 | 10.0.188.1 | 10.0.188.254 | 256 |
| 190 | 10.0.189.0/24 | 10.0.189.0 | 10.0.189.255 | 10.0.189.1 | 10.0.189.254 | 256 |
| 191 | 10.0.190.0/24 | 10.0.190.0 | 10.0.190.255 | 10.0.190.1 | 10.0.190.254 | 256 |
| 192 | 10.0.191.0/24 | 10.0.191.0 | 10.0.191.255 | 10.0.191.1 | 10.0.191.254 | 256 |
| 193 | 10.0.192.0/24 | 10.0.192.0 | 10.0.192.255 | 10.0.192.1 | 10.0.192.254 | 256 |
| 194 | 10.0.193.0/24 | 10.0.193.0 | 10.0.193.255 | 10.0.193.1 | 10.0.193.254 | 256 |
| 195 | 10.0.194.0/24 | 10.0.194.0 | 10.0.194.255 | 10.0.194.1 | 10.0.194.254 | 256 |
| 196 | 10.0.195.0/24 | 10.0.195.0 | 10.0.195.255 | 10.0.195.1 | 10.0.195.254 | 256 |
| 197 | 10.0.196.0/24 | 10.0.196.0 | 10.0.196.255 | 10.0.196.1 | 10.0.196.254 | 256 |
| 198 | 10.0.197.0/24 | 10.0.197.0 | 10.0.197.255 | 10.0.197.1 | 10.0.197.254 | 256 |
| 199 | 10.0.198.0/24 | 10.0.198.0 | 10.0.198.255 | 10.0.198.1 | 10.0.198.254 | 256 |
| 200 | 10.0.199.0/24 | 10.0.199.0 | 10.0.199.255 | 10.0.199.1 | 10.0.199.254 | 256 |
| 201 | 10.0.200.0/24 | 10.0.200.0 | 10.0.200.255 | 10.0.200.1 | 10.0.200.254 | 256 |
| 202 | 10.0.201.0/24 | 10.0.201.0 | 10.0.201.255 | 10.0.201.1 | 10.0.201.254 | 256 |
| 203 | 10.0.202.0/24 | 10.0.202.0 | 10.0.202.255 | 10.0.202.1 | 10.0.202.254 | 256 |
| 204 | 10.0.203.0/24 | 10.0.203.0 | 10.0.203.255 | 10.0.203.1 | 10.0.203.254 | 256 |
| 205 | 10.0.204.0/24 | 10.0.204.0 | 10.0.204.255 | 10.0.204.1 | 10.0.204.254 | 256 |
| 206 | 10.0.205.0/24 | 10.0.205.0 | 10.0.205.255 | 10.0.205.1 | 10.0.205.254 | 256 |
| 207 | 10.0.206.0/24 | 10.0.206.0 | 10.0.206.255 | 10.0.206.1 | 10.0.206.254 | 256 |
| 208 | 10.0.207.0/24 | 10.0.207.0 | 10.0.207.255 | 10.0.207.1 | 10.0.207.254 | 256 |
| 209 | 10.0.208.0/24 | 10.0.208.0 | 10.0.208.255 | 10.0.208.1 | 10.0.208.254 | 256 |
| 210 | 10.0.209.0/24 | 10.0.209.0 | 10.0.209.255 | 10.0.209.1 | 10.0.209.254 | 256 |
| 211 | 10.0.210.0/24 | 10.0.210.0 | 10.0.210.255 | 10.0.210.1 | 10.0.210.254 | 256 |
| 212 | 10.0.211.0/24 | 10.0.211.0 | 10.0.211.255 | 10.0.211.1 | 10.0.211.254 | 256 |
| 213 | 10.0.212.0/24 | 10.0.212.0 | 10.0.212.255 | 10.0.212.1 | 10.0.212.254 | 256 |
| 214 | 10.0.213.0/24 | 10.0.213.0 | 10.0.213.255 | 10.0.213.1 | 10.0.213.254 | 256 |
| 215 | 10.0.214.0/24 | 10.0.214.0 | 10.0.214.255 | 10.0.214.1 | 10.0.214.254 | 256 |
| 216 | 10.0.215.0/24 | 10.0.215.0 | 10.0.215.255 | 10.0.215.1 | 10.0.215.254 | 256 |
| 217 | 10.0.216.0/24 | 10.0.216.0 | 10.0.216.255 | 10.0.216.1 | 10.0.216.254 | 256 |
| 218 | 10.0.217.0/24 | 10.0.217.0 | 10.0.217.255 | 10.0.217.1 | 10.0.217.254 | 256 |
| 219 | 10.0.218.0/24 | 10.0.218.0 | 10.0.218.255 | 10.0.218.1 | 10.0.218.254 | 256 |
| 220 | 10.0.219.0/24 | 10.0.219.0 | 10.0.219.255 | 10.0.219.1 | 10.0.219.254 | 256 |
| 221 | 10.0.220.0/24 | 10.0.220.0 | 10.0.220.255 | 10.0.220.1 | 10.0.220.254 | 256 |
| 222 | 10.0.221.0/24 | 10.0.221.0 | 10.0.221.255 | 10.0.221.1 | 10.0.221.254 | 256 |
| 223 | 10.0.222.0/24 | 10.0.222.0 | 10.0.222.255 | 10.0.222.1 | 10.0.222.254 | 256 |
| 224 | 10.0.223.0/24 | 10.0.223.0 | 10.0.223.255 | 10.0.223.1 | 10.0.223.254 | 256 |
| 225 | 10.0.224.0/24 | 10.0.224.0 | 10.0.224.255 | 10.0.224.1 | 10.0.224.254 | 256 |
| 226 | 10.0.225.0/24 | 10.0.225.0 | 10.0.225.255 | 10.0.225.1 | 10.0.225.254 | 256 |
| 227 | 10.0.226.0/24 | 10.0.226.0 | 10.0.226.255 | 10.0.226.1 | 10.0.226.254 | 256 |
| 228 | 10.0.227.0/24 | 10.0.227.0 | 10.0.227.255 | 10.0.227.1 | 10.0.227.254 | 256 |
| 229 | 10.0.228.0/24 | 10.0.228.0 | 10.0.228.255 | 10.0.228.1 | 10.0.228.254 | 256 |
| 230 | 10.0.229.0/24 | 10.0.229.0 | 10.0.229.255 | 10.0.229.1 | 10.0.229.254 | 256 |
| 231 | 10.0.230.0/24 | 10.0.230.0 | 10.0.230.255 | 10.0.230.1 | 10.0.230.254 | 256 |
| 232 | 10.0.231.0/24 | 10.0.231.0 | 10.0.231.255 | 10.0.231.1 | 10.0.231.254 | 256 |
| 233 | 10.0.232.0/24 | 10.0.232.0 | 10.0.232.255 | 10.0.232.1 | 10.0.232.254 | 256 |
| 234 | 10.0.233.0/24 | 10.0.233.0 | 10.0.233.255 | 10.0.233.1 | 10.0.233.254 | 256 |
| 235 | 10.0.234.0/24 | 10.0.234.0 | 10.0.234.255 | 10.0.234.1 | 10.0.234.254 | 256 |
| 236 | 10.0.235.0/24 | 10.0.235.0 | 10.0.235.255 | 10.0.235.1 | 10.0.235.254 | 256 |
| 237 | 10.0.236.0/24 | 10.0.236.0 | 10.0.236.255 | 10.0.236.1 | 10.0.236.254 | 256 |
| 238 | 10.0.237.0/24 | 10.0.237.0 | 10.0.237.255 | 10.0.237.1 | 10.0.237.254 | 256 |
| 239 | 10.0.238.0/24 | 10.0.238.0 | 10.0.238.255 | 10.0.238.1 | 10.0.238.254 | 256 |
| 240 | 10.0.239.0/24 | 10.0.239.0 | 10.0.239.255 | 10.0.239.1 | 10.0.239.254 | 256 |
| 241 | 10.0.240.0/24 | 10.0.240.0 | 10.0.240.255 | 10.0.240.1 | 10.0.240.254 | 256 |
| 242 | 10.0.241.0/24 | 10.0.241.0 | 10.0.241.255 | 10.0.241.1 | 10.0.241.254 | 256 |
| 243 | 10.0.242.0/24 | 10.0.242.0 | 10.0.242.255 | 10.0.242.1 | 10.0.242.254 | 256 |
| 244 | 10.0.243.0/24 | 10.0.243.0 | 10.0.243.255 | 10.0.243.1 | 10.0.243.254 | 256 |
| 245 | 10.0.244.0/24 | 10.0.244.0 | 10.0.244.255 | 10.0.244.1 | 10.0.244.254 | 256 |
| 246 | 10.0.245.0/24 | 10.0.245.0 | 10.0.245.255 | 10.0.245.1 | 10.0.245.254 | 256 |
| 247 | 10.0.246.0/24 | 10.0.246.0 | 10.0.246.255 | 10.0.246.1 | 10.0.246.254 | 256 |
| 248 | 10.0.247.0/24 | 10.0.247.0 | 10.0.247.255 | 10.0.247.1 | 10.0.247.254 | 256 |
| 249 | 10.0.248.0/24 | 10.0.248.0 | 10.0.248.255 | 10.0.248.1 | 10.0.248.254 | 256 |
| 250 | 10.0.249.0/24 | 10.0.249.0 | 10.0.249.255 | 10.0.249.1 | 10.0.249.254 | 256 |
| 251 | 10.0.250.0/24 | 10.0.250.0 | 10.0.250.255 | 10.0.250.1 | 10.0.250.254 | 256 |
| 252 | 10.0.251.0/24 | 10.0.251.0 | 10.0.251.255 | 10.0.251.1 | 10.0.251.254 | 256 |
| 253 | 10.0.252.0/24 | 10.0.252.0 | 10.0.252.255 | 10.0.252.1 | 10.0.252.254 | 256 |
| 254 | 10.0.253.0/24 | 10.0.253.0 | 10.0.253.255 | 10.0.253.1 | 10.0.253.254 | 256 |
| 255 | 10.0.254.0/24 | 10.0.254.0 | 10.0.254.255 | 10.0.254.1 | 10.0.254.254 | 256 |
| 256 | 10.0.255.0/24 | 10.0.255.0 | 10.0.255.255 | 10.0.255.1 | 10.0.255.254 | 256 |
Common use cases
- Segment a /16 or /24 for VLAN or AZ planning: set child /27 or /28 and copy the table into a runbook.
- Compare broadcast and usable bounds across candidate masks before you assign DHCP pools.
- Teach CIDR: show how 192.168.0.0/25 splits into two /26 blocks with concrete network addresses.
- Export TSV to paste into a spreadsheet for ticket tracking when each row is a candidate subnet.
Common mistakes to avoid
Using the child prefix that is not longer than the parent
The child /n must be a larger n than the parent (more specific). Otherwise there is a single block, not a split list.
Expecting the table for millions of /24s
The UI caps at 1024 rows. Divide the problem in software or narrow the parent block when you need more rows.
Confusing with point-to-point /31 and /32 rules
This tool lists subnets using the same host conventions as the CIDR calculator. Usable first/last follow RFC-typical /31 and /32 behavior.
FAQ
How is this different from the CIDR calculator?
The CIDR page computes one CIDR. This page takes a parent block and a child mask length and lists every child subnet in order.
Why do I get an error for a 10.0.0.0/8 to /16 split?
That split produces 65,536 rows, which exceeds the 1024 cap. Use a smaller parent, a coarser child, or a script for huge enumerations.
Is data sent to a server?
No. The split runs in your browser.
Common search terms
Phrases people search for that match this tool. See the full long-tail keyword index.
- list child subnets from parent cidr
- split ipv4 cidr into equal prefix table
- enumerate /24 from /16 online
- subnet list generator browser
More tools
Related utilities you can open in another tab—mostly client-side.
CIDR calculator (IPv4 & IPv6)
ClientIPv4 or IPv6 CIDR: network, range, mask or prefix size—computed locally in your browser.
IPv6 expand & compress
ClientSingle IPv6 address: full 8-group expanded and RFC 5952 compressed text—::ffff:IPv4 mapped, not CIDR math—local only.
TCP & UDP ports
ClientWell-known and common port numbers with IANA-style service names—filter by port, protocol, or keyword—client-side.
MIME types & file extensions
ClientLook up common MIME types from extensions (and vice versa)—filterable table, copy Content-Type—client-side.