IP subnet calculator
Type an address with its prefix or mask to see the network, its usable range and masks. Split it into smaller subnets, or look up any prefix in the reference tables.
Network59.2.208.0/20
Usable hosts4,094
Subnet mask255.255.240.0
Addresses4,096
- Network address
59.2.208.0- Broadcast address
59.2.223.255- First usable
59.2.208.1- Last usable
59.2.223.254- Usable hosts
- 4,094 (4,096 less the network and broadcast addresses)
- Subnet mask
255.255.240.0- Wildcard mask
0.0.15.255(Cisco ACLs, OSPF)- Prefix length
- /20
- Type
- Public public
- Old class
- A (default /8)
- As numbers
- Hex
3B02D000· Integer990040064to990044159 - Reverse DNS zones
208.2.59.in-addr.arpa209.2.59.in-addr.arpa210.2.59.in-addr.arpa211.2.59.in-addr.arpa212.2.59.in-addr.arpa213.2.59.in-addr.arpa214.2.59.in-addr.arpa215.2.59.in-addr.arpa216.2.59.in-addr.arpa217.2.59.in-addr.arpa218.2.59.in-addr.arpa219.2.59.in-addr.arpa220.2.59.in-addr.arpa221.2.59.in-addr.arpa222.2.59.in-addr.arpa223.2.59.in-addr.arpa
/20 is not on a 8-bit boundary, so it takes 16 /24 zones.
Binary
| Binary (network bits bold, host bits grey) | Dotted | |
|---|---|---|
| Address | 00111011.00000010.11010000.00000000 | 59.2.208.0 |
| Subnet mask | 11111111.11111111.11110000.00000000 | 255.255.240.0 |
| Network | 00111011.00000010.11010000.00000000 | 59.2.208.0 |
| Broadcast | 00111011.00000010.11011111.11111111 | 59.2.223.255 |
Split into smaller subnets
/21 (2)/22 (4)/23 (8)/24 (16)/25 (32)/26 (64)/27 (128)/28 (256)/29 (512)/30 (1,024)/31 (2,048)/32 (4,096)
59.2.208.0/20 makes 4,096 subnets of /32; the first 256 are listed.
| # | Subnet | Usable hosts range | Broadcast | Hosts |
|---|---|---|---|---|
| 1 | 59.2.208.0/32 | 59.2.208.0 to 59.2.208.0 | — | 1 |
| 2 | 59.2.208.1/32 | 59.2.208.1 to 59.2.208.1 | — | 1 |
| 3 | 59.2.208.2/32 | 59.2.208.2 to 59.2.208.2 | — | 1 |
| 4 | 59.2.208.3/32 | 59.2.208.3 to 59.2.208.3 | — | 1 |
| 5 | 59.2.208.4/32 | 59.2.208.4 to 59.2.208.4 | — | 1 |
| 6 | 59.2.208.5/32 | 59.2.208.5 to 59.2.208.5 | — | 1 |
| 7 | 59.2.208.6/32 | 59.2.208.6 to 59.2.208.6 | — | 1 |
| 8 | 59.2.208.7/32 | 59.2.208.7 to 59.2.208.7 | — | 1 |
| 9 | 59.2.208.8/32 | 59.2.208.8 to 59.2.208.8 | — | 1 |
| 10 | 59.2.208.9/32 | 59.2.208.9 to 59.2.208.9 | — | 1 |
| 11 | 59.2.208.10/32 | 59.2.208.10 to 59.2.208.10 | — | 1 |
| 12 | 59.2.208.11/32 | 59.2.208.11 to 59.2.208.11 | — | 1 |
| 13 | 59.2.208.12/32 | 59.2.208.12 to 59.2.208.12 | — | 1 |
| 14 | 59.2.208.13/32 | 59.2.208.13 to 59.2.208.13 | — | 1 |
| 15 | 59.2.208.14/32 | 59.2.208.14 to 59.2.208.14 | — | 1 |
| 16 | 59.2.208.15/32 | 59.2.208.15 to 59.2.208.15 | — | 1 |
| 17 | 59.2.208.16/32 | 59.2.208.16 to 59.2.208.16 | — | 1 |
| 18 | 59.2.208.17/32 | 59.2.208.17 to 59.2.208.17 | — | 1 |
| 19 | 59.2.208.18/32 | 59.2.208.18 to 59.2.208.18 | — | 1 |
| 20 | 59.2.208.19/32 | 59.2.208.19 to 59.2.208.19 | — | 1 |
| 21 | 59.2.208.20/32 | 59.2.208.20 to 59.2.208.20 | — | 1 |
| 22 | 59.2.208.21/32 | 59.2.208.21 to 59.2.208.21 | — | 1 |
| 23 | 59.2.208.22/32 | 59.2.208.22 to 59.2.208.22 | — | 1 |
| 24 | 59.2.208.23/32 | 59.2.208.23 to 59.2.208.23 | — | 1 |
| 25 | 59.2.208.24/32 | 59.2.208.24 to 59.2.208.24 | — | 1 |
| 26 | 59.2.208.25/32 | 59.2.208.25 to 59.2.208.25 | — | 1 |
| 27 | 59.2.208.26/32 | 59.2.208.26 to 59.2.208.26 | — | 1 |
| 28 | 59.2.208.27/32 | 59.2.208.27 to 59.2.208.27 | — | 1 |
| 29 | 59.2.208.28/32 | 59.2.208.28 to 59.2.208.28 | — | 1 |
| 30 | 59.2.208.29/32 | 59.2.208.29 to 59.2.208.29 | — | 1 |
| 31 | 59.2.208.30/32 | 59.2.208.30 to 59.2.208.30 | — | 1 |
| 32 | 59.2.208.31/32 | 59.2.208.31 to 59.2.208.31 | — | 1 |
| 33 | 59.2.208.32/32 | 59.2.208.32 to 59.2.208.32 | — | 1 |
| 34 | 59.2.208.33/32 | 59.2.208.33 to 59.2.208.33 | — | 1 |
| 35 | 59.2.208.34/32 | 59.2.208.34 to 59.2.208.34 | — | 1 |
| 36 | 59.2.208.35/32 | 59.2.208.35 to 59.2.208.35 | — | 1 |
| 37 | 59.2.208.36/32 | 59.2.208.36 to 59.2.208.36 | — | 1 |
| 38 | 59.2.208.37/32 | 59.2.208.37 to 59.2.208.37 | — | 1 |
| 39 | 59.2.208.38/32 | 59.2.208.38 to 59.2.208.38 | — | 1 |
| 40 | 59.2.208.39/32 | 59.2.208.39 to 59.2.208.39 | — | 1 |
| 41 | 59.2.208.40/32 | 59.2.208.40 to 59.2.208.40 | — | 1 |
| 42 | 59.2.208.41/32 | 59.2.208.41 to 59.2.208.41 | — | 1 |
| 43 | 59.2.208.42/32 | 59.2.208.42 to 59.2.208.42 | — | 1 |
| 44 | 59.2.208.43/32 | 59.2.208.43 to 59.2.208.43 | — | 1 |
| 45 | 59.2.208.44/32 | 59.2.208.44 to 59.2.208.44 | — | 1 |
| 46 | 59.2.208.45/32 | 59.2.208.45 to 59.2.208.45 | — | 1 |
| 47 | 59.2.208.46/32 | 59.2.208.46 to 59.2.208.46 | — | 1 |
| 48 | 59.2.208.47/32 | 59.2.208.47 to 59.2.208.47 | — | 1 |
| 49 | 59.2.208.48/32 | 59.2.208.48 to 59.2.208.48 | — | 1 |
| 50 | 59.2.208.49/32 | 59.2.208.49 to 59.2.208.49 | — | 1 |
| 51 | 59.2.208.50/32 | 59.2.208.50 to 59.2.208.50 | — | 1 |
| 52 | 59.2.208.51/32 | 59.2.208.51 to 59.2.208.51 | — | 1 |
| 53 | 59.2.208.52/32 | 59.2.208.52 to 59.2.208.52 | — | 1 |
| 54 | 59.2.208.53/32 | 59.2.208.53 to 59.2.208.53 | — | 1 |
| 55 | 59.2.208.54/32 | 59.2.208.54 to 59.2.208.54 | — | 1 |
| 56 | 59.2.208.55/32 | 59.2.208.55 to 59.2.208.55 | — | 1 |
| 57 | 59.2.208.56/32 | 59.2.208.56 to 59.2.208.56 | — | 1 |
| 58 | 59.2.208.57/32 | 59.2.208.57 to 59.2.208.57 | — | 1 |
| 59 | 59.2.208.58/32 | 59.2.208.58 to 59.2.208.58 | — | 1 |
| 60 | 59.2.208.59/32 | 59.2.208.59 to 59.2.208.59 | — | 1 |
| 61 | 59.2.208.60/32 | 59.2.208.60 to 59.2.208.60 | — | 1 |
| 62 | 59.2.208.61/32 | 59.2.208.61 to 59.2.208.61 | — | 1 |
| 63 | 59.2.208.62/32 | 59.2.208.62 to 59.2.208.62 | — | 1 |
| 64 | 59.2.208.63/32 | 59.2.208.63 to 59.2.208.63 | — | 1 |
| 65 | 59.2.208.64/32 | 59.2.208.64 to 59.2.208.64 | — | 1 |
| 66 | 59.2.208.65/32 | 59.2.208.65 to 59.2.208.65 | — | 1 |
| 67 | 59.2.208.66/32 | 59.2.208.66 to 59.2.208.66 | — | 1 |
| 68 | 59.2.208.67/32 | 59.2.208.67 to 59.2.208.67 | — | 1 |
| 69 | 59.2.208.68/32 | 59.2.208.68 to 59.2.208.68 | — | 1 |
| 70 | 59.2.208.69/32 | 59.2.208.69 to 59.2.208.69 | — | 1 |
| 71 | 59.2.208.70/32 | 59.2.208.70 to 59.2.208.70 | — | 1 |
| 72 | 59.2.208.71/32 | 59.2.208.71 to 59.2.208.71 | — | 1 |
| 73 | 59.2.208.72/32 | 59.2.208.72 to 59.2.208.72 | — | 1 |
| 74 | 59.2.208.73/32 | 59.2.208.73 to 59.2.208.73 | — | 1 |
| 75 | 59.2.208.74/32 | 59.2.208.74 to 59.2.208.74 | — | 1 |
| 76 | 59.2.208.75/32 | 59.2.208.75 to 59.2.208.75 | — | 1 |
| 77 | 59.2.208.76/32 | 59.2.208.76 to 59.2.208.76 | — | 1 |
| 78 | 59.2.208.77/32 | 59.2.208.77 to 59.2.208.77 | — | 1 |
| 79 | 59.2.208.78/32 | 59.2.208.78 to 59.2.208.78 | — | 1 |
| 80 | 59.2.208.79/32 | 59.2.208.79 to 59.2.208.79 | — | 1 |
| 81 | 59.2.208.80/32 | 59.2.208.80 to 59.2.208.80 | — | 1 |
| 82 | 59.2.208.81/32 | 59.2.208.81 to 59.2.208.81 | — | 1 |
| 83 | 59.2.208.82/32 | 59.2.208.82 to 59.2.208.82 | — | 1 |
| 84 | 59.2.208.83/32 | 59.2.208.83 to 59.2.208.83 | — | 1 |
| 85 | 59.2.208.84/32 | 59.2.208.84 to 59.2.208.84 | — | 1 |
| 86 | 59.2.208.85/32 | 59.2.208.85 to 59.2.208.85 | — | 1 |
| 87 | 59.2.208.86/32 | 59.2.208.86 to 59.2.208.86 | — | 1 |
| 88 | 59.2.208.87/32 | 59.2.208.87 to 59.2.208.87 | — | 1 |
| 89 | 59.2.208.88/32 | 59.2.208.88 to 59.2.208.88 | — | 1 |
| 90 | 59.2.208.89/32 | 59.2.208.89 to 59.2.208.89 | — | 1 |
| 91 | 59.2.208.90/32 | 59.2.208.90 to 59.2.208.90 | — | 1 |
| 92 | 59.2.208.91/32 | 59.2.208.91 to 59.2.208.91 | — | 1 |
| 93 | 59.2.208.92/32 | 59.2.208.92 to 59.2.208.92 | — | 1 |
| 94 | 59.2.208.93/32 | 59.2.208.93 to 59.2.208.93 | — | 1 |
| 95 | 59.2.208.94/32 | 59.2.208.94 to 59.2.208.94 | — | 1 |
| 96 | 59.2.208.95/32 | 59.2.208.95 to 59.2.208.95 | — | 1 |
| 97 | 59.2.208.96/32 | 59.2.208.96 to 59.2.208.96 | — | 1 |
| 98 | 59.2.208.97/32 | 59.2.208.97 to 59.2.208.97 | — | 1 |
| 99 | 59.2.208.98/32 | 59.2.208.98 to 59.2.208.98 | — | 1 |
| 100 | 59.2.208.99/32 | 59.2.208.99 to 59.2.208.99 | — | 1 |
| 101 | 59.2.208.100/32 | 59.2.208.100 to 59.2.208.100 | — | 1 |
| 102 | 59.2.208.101/32 | 59.2.208.101 to 59.2.208.101 | — | 1 |
| 103 | 59.2.208.102/32 | 59.2.208.102 to 59.2.208.102 | — | 1 |
| 104 | 59.2.208.103/32 | 59.2.208.103 to 59.2.208.103 | — | 1 |
| 105 | 59.2.208.104/32 | 59.2.208.104 to 59.2.208.104 | — | 1 |
| 106 | 59.2.208.105/32 | 59.2.208.105 to 59.2.208.105 | — | 1 |
| 107 | 59.2.208.106/32 | 59.2.208.106 to 59.2.208.106 | — | 1 |
| 108 | 59.2.208.107/32 | 59.2.208.107 to 59.2.208.107 | — | 1 |
| 109 | 59.2.208.108/32 | 59.2.208.108 to 59.2.208.108 | — | 1 |
| 110 | 59.2.208.109/32 | 59.2.208.109 to 59.2.208.109 | — | 1 |
| 111 | 59.2.208.110/32 | 59.2.208.110 to 59.2.208.110 | — | 1 |
| 112 | 59.2.208.111/32 | 59.2.208.111 to 59.2.208.111 | — | 1 |
| 113 | 59.2.208.112/32 | 59.2.208.112 to 59.2.208.112 | — | 1 |
| 114 | 59.2.208.113/32 | 59.2.208.113 to 59.2.208.113 | — | 1 |
| 115 | 59.2.208.114/32 | 59.2.208.114 to 59.2.208.114 | — | 1 |
| 116 | 59.2.208.115/32 | 59.2.208.115 to 59.2.208.115 | — | 1 |
| 117 | 59.2.208.116/32 | 59.2.208.116 to 59.2.208.116 | — | 1 |
| 118 | 59.2.208.117/32 | 59.2.208.117 to 59.2.208.117 | — | 1 |
| 119 | 59.2.208.118/32 | 59.2.208.118 to 59.2.208.118 | — | 1 |
| 120 | 59.2.208.119/32 | 59.2.208.119 to 59.2.208.119 | — | 1 |
| 121 | 59.2.208.120/32 | 59.2.208.120 to 59.2.208.120 | — | 1 |
| 122 | 59.2.208.121/32 | 59.2.208.121 to 59.2.208.121 | — | 1 |
| 123 | 59.2.208.122/32 | 59.2.208.122 to 59.2.208.122 | — | 1 |
| 124 | 59.2.208.123/32 | 59.2.208.123 to 59.2.208.123 | — | 1 |
| 125 | 59.2.208.124/32 | 59.2.208.124 to 59.2.208.124 | — | 1 |
| 126 | 59.2.208.125/32 | 59.2.208.125 to 59.2.208.125 | — | 1 |
| 127 | 59.2.208.126/32 | 59.2.208.126 to 59.2.208.126 | — | 1 |
| 128 | 59.2.208.127/32 | 59.2.208.127 to 59.2.208.127 | — | 1 |
| 129 | 59.2.208.128/32 | 59.2.208.128 to 59.2.208.128 | — | 1 |
| 130 | 59.2.208.129/32 | 59.2.208.129 to 59.2.208.129 | — | 1 |
| 131 | 59.2.208.130/32 | 59.2.208.130 to 59.2.208.130 | — | 1 |
| 132 | 59.2.208.131/32 | 59.2.208.131 to 59.2.208.131 | — | 1 |
| 133 | 59.2.208.132/32 | 59.2.208.132 to 59.2.208.132 | — | 1 |
| 134 | 59.2.208.133/32 | 59.2.208.133 to 59.2.208.133 | — | 1 |
| 135 | 59.2.208.134/32 | 59.2.208.134 to 59.2.208.134 | — | 1 |
| 136 | 59.2.208.135/32 | 59.2.208.135 to 59.2.208.135 | — | 1 |
| 137 | 59.2.208.136/32 | 59.2.208.136 to 59.2.208.136 | — | 1 |
| 138 | 59.2.208.137/32 | 59.2.208.137 to 59.2.208.137 | — | 1 |
| 139 | 59.2.208.138/32 | 59.2.208.138 to 59.2.208.138 | — | 1 |
| 140 | 59.2.208.139/32 | 59.2.208.139 to 59.2.208.139 | — | 1 |
| 141 | 59.2.208.140/32 | 59.2.208.140 to 59.2.208.140 | — | 1 |
| 142 | 59.2.208.141/32 | 59.2.208.141 to 59.2.208.141 | — | 1 |
| 143 | 59.2.208.142/32 | 59.2.208.142 to 59.2.208.142 | — | 1 |
| 144 | 59.2.208.143/32 | 59.2.208.143 to 59.2.208.143 | — | 1 |
| 145 | 59.2.208.144/32 | 59.2.208.144 to 59.2.208.144 | — | 1 |
| 146 | 59.2.208.145/32 | 59.2.208.145 to 59.2.208.145 | — | 1 |
| 147 | 59.2.208.146/32 | 59.2.208.146 to 59.2.208.146 | — | 1 |
| 148 | 59.2.208.147/32 | 59.2.208.147 to 59.2.208.147 | — | 1 |
| 149 | 59.2.208.148/32 | 59.2.208.148 to 59.2.208.148 | — | 1 |
| 150 | 59.2.208.149/32 | 59.2.208.149 to 59.2.208.149 | — | 1 |
| 151 | 59.2.208.150/32 | 59.2.208.150 to 59.2.208.150 | — | 1 |
| 152 | 59.2.208.151/32 | 59.2.208.151 to 59.2.208.151 | — | 1 |
| 153 | 59.2.208.152/32 | 59.2.208.152 to 59.2.208.152 | — | 1 |
| 154 | 59.2.208.153/32 | 59.2.208.153 to 59.2.208.153 | — | 1 |
| 155 | 59.2.208.154/32 | 59.2.208.154 to 59.2.208.154 | — | 1 |
| 156 | 59.2.208.155/32 | 59.2.208.155 to 59.2.208.155 | — | 1 |
| 157 | 59.2.208.156/32 | 59.2.208.156 to 59.2.208.156 | — | 1 |
| 158 | 59.2.208.157/32 | 59.2.208.157 to 59.2.208.157 | — | 1 |
| 159 | 59.2.208.158/32 | 59.2.208.158 to 59.2.208.158 | — | 1 |
| 160 | 59.2.208.159/32 | 59.2.208.159 to 59.2.208.159 | — | 1 |
| 161 | 59.2.208.160/32 | 59.2.208.160 to 59.2.208.160 | — | 1 |
| 162 | 59.2.208.161/32 | 59.2.208.161 to 59.2.208.161 | — | 1 |
| 163 | 59.2.208.162/32 | 59.2.208.162 to 59.2.208.162 | — | 1 |
| 164 | 59.2.208.163/32 | 59.2.208.163 to 59.2.208.163 | — | 1 |
| 165 | 59.2.208.164/32 | 59.2.208.164 to 59.2.208.164 | — | 1 |
| 166 | 59.2.208.165/32 | 59.2.208.165 to 59.2.208.165 | — | 1 |
| 167 | 59.2.208.166/32 | 59.2.208.166 to 59.2.208.166 | — | 1 |
| 168 | 59.2.208.167/32 | 59.2.208.167 to 59.2.208.167 | — | 1 |
| 169 | 59.2.208.168/32 | 59.2.208.168 to 59.2.208.168 | — | 1 |
| 170 | 59.2.208.169/32 | 59.2.208.169 to 59.2.208.169 | — | 1 |
| 171 | 59.2.208.170/32 | 59.2.208.170 to 59.2.208.170 | — | 1 |
| 172 | 59.2.208.171/32 | 59.2.208.171 to 59.2.208.171 | — | 1 |
| 173 | 59.2.208.172/32 | 59.2.208.172 to 59.2.208.172 | — | 1 |
| 174 | 59.2.208.173/32 | 59.2.208.173 to 59.2.208.173 | — | 1 |
| 175 | 59.2.208.174/32 | 59.2.208.174 to 59.2.208.174 | — | 1 |
| 176 | 59.2.208.175/32 | 59.2.208.175 to 59.2.208.175 | — | 1 |
| 177 | 59.2.208.176/32 | 59.2.208.176 to 59.2.208.176 | — | 1 |
| 178 | 59.2.208.177/32 | 59.2.208.177 to 59.2.208.177 | — | 1 |
| 179 | 59.2.208.178/32 | 59.2.208.178 to 59.2.208.178 | — | 1 |
| 180 | 59.2.208.179/32 | 59.2.208.179 to 59.2.208.179 | — | 1 |
| 181 | 59.2.208.180/32 | 59.2.208.180 to 59.2.208.180 | — | 1 |
| 182 | 59.2.208.181/32 | 59.2.208.181 to 59.2.208.181 | — | 1 |
| 183 | 59.2.208.182/32 | 59.2.208.182 to 59.2.208.182 | — | 1 |
| 184 | 59.2.208.183/32 | 59.2.208.183 to 59.2.208.183 | — | 1 |
| 185 | 59.2.208.184/32 | 59.2.208.184 to 59.2.208.184 | — | 1 |
| 186 | 59.2.208.185/32 | 59.2.208.185 to 59.2.208.185 | — | 1 |
| 187 | 59.2.208.186/32 | 59.2.208.186 to 59.2.208.186 | — | 1 |
| 188 | 59.2.208.187/32 | 59.2.208.187 to 59.2.208.187 | — | 1 |
| 189 | 59.2.208.188/32 | 59.2.208.188 to 59.2.208.188 | — | 1 |
| 190 | 59.2.208.189/32 | 59.2.208.189 to 59.2.208.189 | — | 1 |
| 191 | 59.2.208.190/32 | 59.2.208.190 to 59.2.208.190 | — | 1 |
| 192 | 59.2.208.191/32 | 59.2.208.191 to 59.2.208.191 | — | 1 |
| 193 | 59.2.208.192/32 | 59.2.208.192 to 59.2.208.192 | — | 1 |
| 194 | 59.2.208.193/32 | 59.2.208.193 to 59.2.208.193 | — | 1 |
| 195 | 59.2.208.194/32 | 59.2.208.194 to 59.2.208.194 | — | 1 |
| 196 | 59.2.208.195/32 | 59.2.208.195 to 59.2.208.195 | — | 1 |
| 197 | 59.2.208.196/32 | 59.2.208.196 to 59.2.208.196 | — | 1 |
| 198 | 59.2.208.197/32 | 59.2.208.197 to 59.2.208.197 | — | 1 |
| 199 | 59.2.208.198/32 | 59.2.208.198 to 59.2.208.198 | — | 1 |
| 200 | 59.2.208.199/32 | 59.2.208.199 to 59.2.208.199 | — | 1 |
| 201 | 59.2.208.200/32 | 59.2.208.200 to 59.2.208.200 | — | 1 |
| 202 | 59.2.208.201/32 | 59.2.208.201 to 59.2.208.201 | — | 1 |
| 203 | 59.2.208.202/32 | 59.2.208.202 to 59.2.208.202 | — | 1 |
| 204 | 59.2.208.203/32 | 59.2.208.203 to 59.2.208.203 | — | 1 |
| 205 | 59.2.208.204/32 | 59.2.208.204 to 59.2.208.204 | — | 1 |
| 206 | 59.2.208.205/32 | 59.2.208.205 to 59.2.208.205 | — | 1 |
| 207 | 59.2.208.206/32 | 59.2.208.206 to 59.2.208.206 | — | 1 |
| 208 | 59.2.208.207/32 | 59.2.208.207 to 59.2.208.207 | — | 1 |
| 209 | 59.2.208.208/32 | 59.2.208.208 to 59.2.208.208 | — | 1 |
| 210 | 59.2.208.209/32 | 59.2.208.209 to 59.2.208.209 | — | 1 |
| 211 | 59.2.208.210/32 | 59.2.208.210 to 59.2.208.210 | — | 1 |
| 212 | 59.2.208.211/32 | 59.2.208.211 to 59.2.208.211 | — | 1 |
| 213 | 59.2.208.212/32 | 59.2.208.212 to 59.2.208.212 | — | 1 |
| 214 | 59.2.208.213/32 | 59.2.208.213 to 59.2.208.213 | — | 1 |
| 215 | 59.2.208.214/32 | 59.2.208.214 to 59.2.208.214 | — | 1 |
| 216 | 59.2.208.215/32 | 59.2.208.215 to 59.2.208.215 | — | 1 |
| 217 | 59.2.208.216/32 | 59.2.208.216 to 59.2.208.216 | — | 1 |
| 218 | 59.2.208.217/32 | 59.2.208.217 to 59.2.208.217 | — | 1 |
| 219 | 59.2.208.218/32 | 59.2.208.218 to 59.2.208.218 | — | 1 |
| 220 | 59.2.208.219/32 | 59.2.208.219 to 59.2.208.219 | — | 1 |
| 221 | 59.2.208.220/32 | 59.2.208.220 to 59.2.208.220 | — | 1 |
| 222 | 59.2.208.221/32 | 59.2.208.221 to 59.2.208.221 | — | 1 |
| 223 | 59.2.208.222/32 | 59.2.208.222 to 59.2.208.222 | — | 1 |
| 224 | 59.2.208.223/32 | 59.2.208.223 to 59.2.208.223 | — | 1 |
| 225 | 59.2.208.224/32 | 59.2.208.224 to 59.2.208.224 | — | 1 |
| 226 | 59.2.208.225/32 | 59.2.208.225 to 59.2.208.225 | — | 1 |
| 227 | 59.2.208.226/32 | 59.2.208.226 to 59.2.208.226 | — | 1 |
| 228 | 59.2.208.227/32 | 59.2.208.227 to 59.2.208.227 | — | 1 |
| 229 | 59.2.208.228/32 | 59.2.208.228 to 59.2.208.228 | — | 1 |
| 230 | 59.2.208.229/32 | 59.2.208.229 to 59.2.208.229 | — | 1 |
| 231 | 59.2.208.230/32 | 59.2.208.230 to 59.2.208.230 | — | 1 |
| 232 | 59.2.208.231/32 | 59.2.208.231 to 59.2.208.231 | — | 1 |
| 233 | 59.2.208.232/32 | 59.2.208.232 to 59.2.208.232 | — | 1 |
| 234 | 59.2.208.233/32 | 59.2.208.233 to 59.2.208.233 | — | 1 |
| 235 | 59.2.208.234/32 | 59.2.208.234 to 59.2.208.234 | — | 1 |
| 236 | 59.2.208.235/32 | 59.2.208.235 to 59.2.208.235 | — | 1 |
| 237 | 59.2.208.236/32 | 59.2.208.236 to 59.2.208.236 | — | 1 |
| 238 | 59.2.208.237/32 | 59.2.208.237 to 59.2.208.237 | — | 1 |
| 239 | 59.2.208.238/32 | 59.2.208.238 to 59.2.208.238 | — | 1 |
| 240 | 59.2.208.239/32 | 59.2.208.239 to 59.2.208.239 | — | 1 |
| 241 | 59.2.208.240/32 | 59.2.208.240 to 59.2.208.240 | — | 1 |
| 242 | 59.2.208.241/32 | 59.2.208.241 to 59.2.208.241 | — | 1 |
| 243 | 59.2.208.242/32 | 59.2.208.242 to 59.2.208.242 | — | 1 |
| 244 | 59.2.208.243/32 | 59.2.208.243 to 59.2.208.243 | — | 1 |
| 245 | 59.2.208.244/32 | 59.2.208.244 to 59.2.208.244 | — | 1 |
| 246 | 59.2.208.245/32 | 59.2.208.245 to 59.2.208.245 | — | 1 |
| 247 | 59.2.208.246/32 | 59.2.208.246 to 59.2.208.246 | — | 1 |
| 248 | 59.2.208.247/32 | 59.2.208.247 to 59.2.208.247 | — | 1 |
| 249 | 59.2.208.248/32 | 59.2.208.248 to 59.2.208.248 | — | 1 |
| 250 | 59.2.208.249/32 | 59.2.208.249 to 59.2.208.249 | — | 1 |
| 251 | 59.2.208.250/32 | 59.2.208.250 to 59.2.208.250 | — | 1 |
| 252 | 59.2.208.251/32 | 59.2.208.251 to 59.2.208.251 | — | 1 |
| 253 | 59.2.208.252/32 | 59.2.208.252 to 59.2.208.252 | — | 1 |
| 254 | 59.2.208.253/32 | 59.2.208.253 to 59.2.208.253 | — | 1 |
| 255 | 59.2.208.254/32 | 59.2.208.254 to 59.2.208.254 | — | 1 |
| 256 | 59.2.208.255/32 | 59.2.208.255 to 59.2.208.255 | — | 1 |
IPv4 CIDR reference (/0 to /32)
| Prefix | Subnet mask | Wildcard | Addresses | Usable hosts | Size | Typical use |
|---|---|---|---|---|---|---|
| /0 | 0.0.0.0 | 255.255.255.255 | 4,294,967,296 | 4,294,967,294 | 16,777,216 × /24 | |
| /1 | 128.0.0.0 | 127.255.255.255 | 2,147,483,648 | 2,147,483,646 | 8,388,608 × /24 | |
| /2 | 192.0.0.0 | 63.255.255.255 | 1,073,741,824 | 1,073,741,822 | 4,194,304 × /24 | |
| /3 | 224.0.0.0 | 31.255.255.255 | 536,870,912 | 536,870,910 | 2,097,152 × /24 | |
| /4 | 240.0.0.0 | 15.255.255.255 | 268,435,456 | 268,435,454 | 1,048,576 × /24 | |
| /5 | 248.0.0.0 | 7.255.255.255 | 134,217,728 | 134,217,726 | 524,288 × /24 | |
| /6 | 252.0.0.0 | 3.255.255.255 | 67,108,864 | 67,108,862 | 262,144 × /24 | |
| /7 | 254.0.0.0 | 1.255.255.255 | 33,554,432 | 33,554,430 | 131,072 × /24 | |
| /8 | 255.0.0.0 | 0.255.255.255 | 16,777,216 | 16,777,214 | 65,536 × /24 | Old class A; 10.0.0.0/8 |
| /9 | 255.128.0.0 | 0.127.255.255 | 8,388,608 | 8,388,606 | 32,768 × /24 | |
| /10 | 255.192.0.0 | 0.63.255.255 | 4,194,304 | 4,194,302 | 16,384 × /24 | |
| /11 | 255.224.0.0 | 0.31.255.255 | 2,097,152 | 2,097,150 | 8,192 × /24 | |
| /12 | 255.240.0.0 | 0.15.255.255 | 1,048,576 | 1,048,574 | 4,096 × /24 | 172.16.0.0/12 |
| /13 | 255.248.0.0 | 0.7.255.255 | 524,288 | 524,286 | 2,048 × /24 | |
| /14 | 255.252.0.0 | 0.3.255.255 | 262,144 | 262,142 | 1,024 × /24 | |
| /15 | 255.254.0.0 | 0.1.255.255 | 131,072 | 131,070 | 512 × /24 | |
| /16 | 255.255.0.0 | 0.0.255.255 | 65,536 | 65,534 | 256 × /24 | Old class B; 192.168.0.0/16 |
| /17 | 255.255.128.0 | 0.0.127.255 | 32,768 | 32,766 | 128 × /24 | |
| /18 | 255.255.192.0 | 0.0.63.255 | 16,384 | 16,382 | 64 × /24 | |
| /19 | 255.255.224.0 | 0.0.31.255 | 8,192 | 8,190 | 32 × /24 | |
| /20 | 255.255.240.0 | 0.0.15.255 | 4,096 | 4,094 | 16 × /24 | |
| /21 | 255.255.248.0 | 0.0.7.255 | 2,048 | 2,046 | 8 × /24 | |
| /22 | 255.255.252.0 | 0.0.3.255 | 1,024 | 1,022 | 4 × /24 | Large office or guest Wi-Fi (1,022 hosts) |
| /23 | 255.255.254.0 | 0.0.1.255 | 512 | 510 | 2 × /24 | Larger office LAN (510 hosts) |
| /24 | 255.255.255.0 | 0.0.0.255 | 256 | 254 | 1 × /24 | Typical office LAN (old class C) |
| /25 | 255.255.255.128 | 0.0.0.127 | 128 | 126 | 1/2 of a /24 | Smaller LAN or VLAN |
| /26 | 255.255.255.192 | 0.0.0.63 | 64 | 62 | 1/4 of a /24 | Smaller LAN or VLAN |
| /27 | 255.255.255.224 | 0.0.0.31 | 32 | 30 | 1/8 of a /24 | Small VLAN, phones, cameras |
| /28 | 255.255.255.240 | 0.0.0.15 | 16 | 14 | 1/16 of a /24 | Small VLAN, phones, cameras |
| /29 | 255.255.255.248 | 0.0.0.7 | 8 | 6 | 1/32 of a /24 | Small fixed public block (5 usable) |
| /30 | 255.255.255.252 | 0.0.0.3 | 4 | 2 | 1/64 of a /24 | Point-to-point (old style) |
| /31 | 255.255.255.254 | 0.0.0.1 | 2 | 2 | 1/128 of a /24 | Point-to-point link (RFC 3021) |
| /32 | 255.255.255.255 | 0.0.0.0 | 1 | 1 | 1/256 of a /24 | One host |
IPv6 prefix reference
| Prefix | Addresses | /64 LANs | /48 sites | Nibble | Typical use |
|---|---|---|---|---|---|
| /3 | 42,535,295,865,117,307,932,921,825,928,971,026,432 (2^125) | 2,305,843,009,213,693,952 | 35,184,372,088,832 | No | All global unicast (2000::/3) |
| /16 | 5,192,296,858,534,827,628,530,496,329,220,096 (2^112) | 281,474,976,710,656 | 4,294,967,296 | Yes | |
| /20 | 324,518,553,658,426,726,783,156,020,576,256 (2^108) | 17,592,186,044,416 | 268,435,456 | Yes | Large provider allocation (RIPE minimum for some) |
| /29 | 633,825,300,114,114,700,748,351,602,688 (2^99) | 34,359,738,368 | 524,288 | No | RIPE allocation to a provider (often) |
| /32 | 79,228,162,514,264,337,593,543,950,336 (2^96) | 4,294,967,296 | 65,536 | Yes | Provider allocation (RIPE default) |
| /36 | 4,951,760,157,141,521,099,596,496,896 (2^92) | 268,435,456 | 4,096 | Yes | |
| /40 | 309,485,009,821,345,068,724,781,056 (2^88) | 16,777,216 | 256 | Yes | |
| /44 | 19,342,813,113,834,066,795,298,816 (2^84) | 1,048,576 | 16 | Yes | |
| /48 | 1,208,925,819,614,629,174,706,176 (2^80) | 65,536 | 1 | Yes | One site or organisation (RIPE PI / assignment) |
| /52 | 75,557,863,725,914,323,419,136 (2^76) | 4,096 | Yes | ||
| /56 | 4,722,366,482,869,645,213,696 (2^72) | 256 | Yes | Small site or home (common provider assignment) | |
| /60 | 295,147,905,179,352,825,856 (2^68) | 16 | Yes | Some home broadband (16 LANs) | |
| /64 | 18,446,744,073,709,551,616 (2^64) | 1 | Yes | One LAN or VLAN (needed for SLAAC) | |
| /72 | 72,057,594,037,927,936 (2^56) | 1/256 of a /64 | Yes | ||
| /80 | 281,474,976,710,656 (2^48) | 1/65,536 of a /64 | Yes | ||
| /96 | 4,294,967,296 | 1/4,294,967,296 of a /64 | Yes | Embeds an IPv4 address (NAT64) | |
| /112 | 65,536 | 1/281,474,976,710,656 of a /64 | Yes | ||
| /120 | 256 | 1/72,057,594,037,927,936 of a /64 | Yes | ||
| /124 | 16 | 1/1,152,921,504,606,846,976 of a /64 | Yes | ||
| /126 | 4 | 1/4,611,686,018,427,387,904 of a /64 | No | ||
| /127 | 2 | 1/9,223,372,036,854,775,808 of a /64 | No | Point-to-point link (RFC 6164) | |
| /128 | 1 | 1/18,446,744,073,709,551,616 of a /64 | Yes | One host or loopback |
Private and special ranges
IPv4
| Range | Name | What it is |
|---|---|---|
255.255.255.255/32 | Limited broadcast | Every host on the local network |
0.0.0.0/8 | This network | Not routed; 0.0.0.0 means "any address" in settings |
10.0.0.0/8 | Private (RFC 1918) | Office and home networks; not routed on the internet |
100.64.0.0/10 | Shared address space (CGNAT) | Used by providers behind carrier-grade NAT (RFC 6598) |
127.0.0.0/8 | Loopback | This computer |
169.254.0.0/16 | Link-local (APIPA) | Self-assigned when no DHCP server answers |
172.16.0.0/12 | Private (RFC 1918) | Office and home networks; not routed on the internet |
192.0.0.0/24 | IETF protocol assignments | Special uses such as DS-Lite |
192.0.2.0/24 | Documentation (TEST-NET-1) | For examples; never used on a network |
192.88.99.0/24 | 6to4 relay (deprecated) | Formerly anycast for 6to4 |
192.168.0.0/16 | Private (RFC 1918) | Office and home networks; not routed on the internet |
198.18.0.0/15 | Benchmarking | Network equipment testing (RFC 2544) |
198.51.100.0/24 | Documentation (TEST-NET-2) | For examples; never used on a network |
203.0.113.0/24 | Documentation (TEST-NET-3) | For examples; never used on a network |
224.0.0.0/4 | Multicast | One-to-many traffic, such as IPTV and routing protocols |
240.0.0.0/4 | Reserved | Future use; not usable on most systems |
IPv6
| Range | Name | What it is |
|---|---|---|
::/128 | Unspecified | No address; :: means "any address" in settings |
::1/128 | Loopback | This computer |
::ffff:0:0/96 | IPv4-mapped | An IPv4 address written as IPv6 |
64:ff9b::/96 | NAT64 | IPv4 addresses reached through a NAT64 gateway |
100::/64 | Discard only | Traffic sent here is dropped (RFC 6666) |
2001:db8::/32 | Documentation | For examples; never used on a network |
2001::/32 | Teredo | IPv6 tunnelled over IPv4 UDP |
2002::/16 | 6to4 | IPv6 tunnelled over IPv4 (largely retired) |
3fff::/20 | Documentation | For examples (RFC 9637) |
fc00::/7 | Unique local (ULA) | Private IPv6, like RFC 1918; usually fd00::/8 |
fe80::/10 | Link-local | Every IPv6 interface has one; not routed |
ff00::/8 | Multicast | One-to-many traffic; replaces broadcast |
2000::/3 | Global unicast | Public internet addresses |