IPv6 Subnet Calculator
e.g. 2001:db8:abcd::/48 (compressed or expanded)
| Network | 2001:db8:abcd::/48 | |
|---|---|---|
| Network (expanded) | 2001:0db8:abcd:0000:0000:0000:0000:0000 | |
| First address | 2001:db8:abcd:: | |
| Last address | 2001:db8:abcd:ffff:ffff:ffff:ffff:ffff | |
| Last (expanded) | 2001:0db8:abcd:ffff:ffff:ffff:ffff:ffff | |
| Total addresses | 2⁸⁰ = 1,208,925,819,614,629,174,706,176 | |
| Prefix length | /48 | |
| Reverse zone | d.c.b.a.8.b.d.0.1.0.0.2.ip6.arpa |
Split into subnets
65,536 × /64 subnets
| # | Subnet | Last address |
|---|---|---|
| 1 | 2001:db8:abcd::/64 | 2001:db8:abcd:0:ffff:ffff:ffff:ffff |
| 2 | 2001:db8:abcd:1::/64 | 2001:db8:abcd:1:ffff:ffff:ffff:ffff |
| 3 | 2001:db8:abcd:2::/64 | 2001:db8:abcd:2:ffff:ffff:ffff:ffff |
| 4 | 2001:db8:abcd:3::/64 | 2001:db8:abcd:3:ffff:ffff:ffff:ffff |
| 5 | 2001:db8:abcd:4::/64 | 2001:db8:abcd:4:ffff:ffff:ffff:ffff |
| 6 | 2001:db8:abcd:5::/64 | 2001:db8:abcd:5:ffff:ffff:ffff:ffff |
| 7 | 2001:db8:abcd:6::/64 | 2001:db8:abcd:6:ffff:ffff:ffff:ffff |
| 8 | 2001:db8:abcd:7::/64 | 2001:db8:abcd:7:ffff:ffff:ffff:ffff |
| 9 | 2001:db8:abcd:8::/64 | 2001:db8:abcd:8:ffff:ffff:ffff:ffff |
| 10 | 2001:db8:abcd:9::/64 | 2001:db8:abcd:9:ffff:ffff:ffff:ffff |
| 11 | 2001:db8:abcd:a::/64 | 2001:db8:abcd:a:ffff:ffff:ffff:ffff |
| 12 | 2001:db8:abcd:b::/64 | 2001:db8:abcd:b:ffff:ffff:ffff:ffff |
| 13 | 2001:db8:abcd:c::/64 | 2001:db8:abcd:c:ffff:ffff:ffff:ffff |
| 14 | 2001:db8:abcd:d::/64 | 2001:db8:abcd:d:ffff:ffff:ffff:ffff |
| 15 | 2001:db8:abcd:e::/64 | 2001:db8:abcd:e:ffff:ffff:ffff:ffff |
| 16 | 2001:db8:abcd:f::/64 | 2001:db8:abcd:f:ffff:ffff:ffff:ffff |
| 17 | 2001:db8:abcd:10::/64 | 2001:db8:abcd:10:ffff:ffff:ffff:ffff |
| 18 | 2001:db8:abcd:11::/64 | 2001:db8:abcd:11:ffff:ffff:ffff:ffff |
| 19 | 2001:db8:abcd:12::/64 | 2001:db8:abcd:12:ffff:ffff:ffff:ffff |
| 20 | 2001:db8:abcd:13::/64 | 2001:db8:abcd:13:ffff:ffff:ffff:ffff |
| 21 | 2001:db8:abcd:14::/64 | 2001:db8:abcd:14:ffff:ffff:ffff:ffff |
| 22 | 2001:db8:abcd:15::/64 | 2001:db8:abcd:15:ffff:ffff:ffff:ffff |
| 23 | 2001:db8:abcd:16::/64 | 2001:db8:abcd:16:ffff:ffff:ffff:ffff |
| 24 | 2001:db8:abcd:17::/64 | 2001:db8:abcd:17:ffff:ffff:ffff:ffff |
| 25 | 2001:db8:abcd:18::/64 | 2001:db8:abcd:18:ffff:ffff:ffff:ffff |
| 26 | 2001:db8:abcd:19::/64 | 2001:db8:abcd:19:ffff:ffff:ffff:ffff |
| 27 | 2001:db8:abcd:1a::/64 | 2001:db8:abcd:1a:ffff:ffff:ffff:ffff |
| 28 | 2001:db8:abcd:1b::/64 | 2001:db8:abcd:1b:ffff:ffff:ffff:ffff |
| 29 | 2001:db8:abcd:1c::/64 | 2001:db8:abcd:1c:ffff:ffff:ffff:ffff |
| 30 | 2001:db8:abcd:1d::/64 | 2001:db8:abcd:1d:ffff:ffff:ffff:ffff |
| 31 | 2001:db8:abcd:1e::/64 | 2001:db8:abcd:1e:ffff:ffff:ffff:ffff |
| 32 | 2001:db8:abcd:1f::/64 | 2001:db8:abcd:1f:ffff:ffff:ffff:ffff |
| 33 | 2001:db8:abcd:20::/64 | 2001:db8:abcd:20:ffff:ffff:ffff:ffff |
| 34 | 2001:db8:abcd:21::/64 | 2001:db8:abcd:21:ffff:ffff:ffff:ffff |
| 35 | 2001:db8:abcd:22::/64 | 2001:db8:abcd:22:ffff:ffff:ffff:ffff |
| 36 | 2001:db8:abcd:23::/64 | 2001:db8:abcd:23:ffff:ffff:ffff:ffff |
| 37 | 2001:db8:abcd:24::/64 | 2001:db8:abcd:24:ffff:ffff:ffff:ffff |
| 38 | 2001:db8:abcd:25::/64 | 2001:db8:abcd:25:ffff:ffff:ffff:ffff |
| 39 | 2001:db8:abcd:26::/64 | 2001:db8:abcd:26:ffff:ffff:ffff:ffff |
| 40 | 2001:db8:abcd:27::/64 | 2001:db8:abcd:27:ffff:ffff:ffff:ffff |
| 41 | 2001:db8:abcd:28::/64 | 2001:db8:abcd:28:ffff:ffff:ffff:ffff |
| 42 | 2001:db8:abcd:29::/64 | 2001:db8:abcd:29:ffff:ffff:ffff:ffff |
| 43 | 2001:db8:abcd:2a::/64 | 2001:db8:abcd:2a:ffff:ffff:ffff:ffff |
| 44 | 2001:db8:abcd:2b::/64 | 2001:db8:abcd:2b:ffff:ffff:ffff:ffff |
| 45 | 2001:db8:abcd:2c::/64 | 2001:db8:abcd:2c:ffff:ffff:ffff:ffff |
| 46 | 2001:db8:abcd:2d::/64 | 2001:db8:abcd:2d:ffff:ffff:ffff:ffff |
| 47 | 2001:db8:abcd:2e::/64 | 2001:db8:abcd:2e:ffff:ffff:ffff:ffff |
| 48 | 2001:db8:abcd:2f::/64 | 2001:db8:abcd:2f:ffff:ffff:ffff:ffff |
| 49 | 2001:db8:abcd:30::/64 | 2001:db8:abcd:30:ffff:ffff:ffff:ffff |
| 50 | 2001:db8:abcd:31::/64 | 2001:db8:abcd:31:ffff:ffff:ffff:ffff |
| 51 | 2001:db8:abcd:32::/64 | 2001:db8:abcd:32:ffff:ffff:ffff:ffff |
| 52 | 2001:db8:abcd:33::/64 | 2001:db8:abcd:33:ffff:ffff:ffff:ffff |
| 53 | 2001:db8:abcd:34::/64 | 2001:db8:abcd:34:ffff:ffff:ffff:ffff |
| 54 | 2001:db8:abcd:35::/64 | 2001:db8:abcd:35:ffff:ffff:ffff:ffff |
| 55 | 2001:db8:abcd:36::/64 | 2001:db8:abcd:36:ffff:ffff:ffff:ffff |
| 56 | 2001:db8:abcd:37::/64 | 2001:db8:abcd:37:ffff:ffff:ffff:ffff |
| 57 | 2001:db8:abcd:38::/64 | 2001:db8:abcd:38:ffff:ffff:ffff:ffff |
| 58 | 2001:db8:abcd:39::/64 | 2001:db8:abcd:39:ffff:ffff:ffff:ffff |
| 59 | 2001:db8:abcd:3a::/64 | 2001:db8:abcd:3a:ffff:ffff:ffff:ffff |
| 60 | 2001:db8:abcd:3b::/64 | 2001:db8:abcd:3b:ffff:ffff:ffff:ffff |
| 61 | 2001:db8:abcd:3c::/64 | 2001:db8:abcd:3c:ffff:ffff:ffff:ffff |
| 62 | 2001:db8:abcd:3d::/64 | 2001:db8:abcd:3d:ffff:ffff:ffff:ffff |
| 63 | 2001:db8:abcd:3e::/64 | 2001:db8:abcd:3e:ffff:ffff:ffff:ffff |
| 64 | 2001:db8:abcd:3f::/64 | 2001:db8:abcd:3f:ffff:ffff:ffff:ffff |
| 65 | 2001:db8:abcd:40::/64 | 2001:db8:abcd:40:ffff:ffff:ffff:ffff |
| 66 | 2001:db8:abcd:41::/64 | 2001:db8:abcd:41:ffff:ffff:ffff:ffff |
| 67 | 2001:db8:abcd:42::/64 | 2001:db8:abcd:42:ffff:ffff:ffff:ffff |
| 68 | 2001:db8:abcd:43::/64 | 2001:db8:abcd:43:ffff:ffff:ffff:ffff |
| 69 | 2001:db8:abcd:44::/64 | 2001:db8:abcd:44:ffff:ffff:ffff:ffff |
| 70 | 2001:db8:abcd:45::/64 | 2001:db8:abcd:45:ffff:ffff:ffff:ffff |
| 71 | 2001:db8:abcd:46::/64 | 2001:db8:abcd:46:ffff:ffff:ffff:ffff |
| 72 | 2001:db8:abcd:47::/64 | 2001:db8:abcd:47:ffff:ffff:ffff:ffff |
| 73 | 2001:db8:abcd:48::/64 | 2001:db8:abcd:48:ffff:ffff:ffff:ffff |
| 74 | 2001:db8:abcd:49::/64 | 2001:db8:abcd:49:ffff:ffff:ffff:ffff |
| 75 | 2001:db8:abcd:4a::/64 | 2001:db8:abcd:4a:ffff:ffff:ffff:ffff |
| 76 | 2001:db8:abcd:4b::/64 | 2001:db8:abcd:4b:ffff:ffff:ffff:ffff |
| 77 | 2001:db8:abcd:4c::/64 | 2001:db8:abcd:4c:ffff:ffff:ffff:ffff |
| 78 | 2001:db8:abcd:4d::/64 | 2001:db8:abcd:4d:ffff:ffff:ffff:ffff |
| 79 | 2001:db8:abcd:4e::/64 | 2001:db8:abcd:4e:ffff:ffff:ffff:ffff |
| 80 | 2001:db8:abcd:4f::/64 | 2001:db8:abcd:4f:ffff:ffff:ffff:ffff |
| 81 | 2001:db8:abcd:50::/64 | 2001:db8:abcd:50:ffff:ffff:ffff:ffff |
| 82 | 2001:db8:abcd:51::/64 | 2001:db8:abcd:51:ffff:ffff:ffff:ffff |
| 83 | 2001:db8:abcd:52::/64 | 2001:db8:abcd:52:ffff:ffff:ffff:ffff |
| 84 | 2001:db8:abcd:53::/64 | 2001:db8:abcd:53:ffff:ffff:ffff:ffff |
| 85 | 2001:db8:abcd:54::/64 | 2001:db8:abcd:54:ffff:ffff:ffff:ffff |
| 86 | 2001:db8:abcd:55::/64 | 2001:db8:abcd:55:ffff:ffff:ffff:ffff |
| 87 | 2001:db8:abcd:56::/64 | 2001:db8:abcd:56:ffff:ffff:ffff:ffff |
| 88 | 2001:db8:abcd:57::/64 | 2001:db8:abcd:57:ffff:ffff:ffff:ffff |
| 89 | 2001:db8:abcd:58::/64 | 2001:db8:abcd:58:ffff:ffff:ffff:ffff |
| 90 | 2001:db8:abcd:59::/64 | 2001:db8:abcd:59:ffff:ffff:ffff:ffff |
| 91 | 2001:db8:abcd:5a::/64 | 2001:db8:abcd:5a:ffff:ffff:ffff:ffff |
| 92 | 2001:db8:abcd:5b::/64 | 2001:db8:abcd:5b:ffff:ffff:ffff:ffff |
| 93 | 2001:db8:abcd:5c::/64 | 2001:db8:abcd:5c:ffff:ffff:ffff:ffff |
| 94 | 2001:db8:abcd:5d::/64 | 2001:db8:abcd:5d:ffff:ffff:ffff:ffff |
| 95 | 2001:db8:abcd:5e::/64 | 2001:db8:abcd:5e:ffff:ffff:ffff:ffff |
| 96 | 2001:db8:abcd:5f::/64 | 2001:db8:abcd:5f:ffff:ffff:ffff:ffff |
| 97 | 2001:db8:abcd:60::/64 | 2001:db8:abcd:60:ffff:ffff:ffff:ffff |
| 98 | 2001:db8:abcd:61::/64 | 2001:db8:abcd:61:ffff:ffff:ffff:ffff |
| 99 | 2001:db8:abcd:62::/64 | 2001:db8:abcd:62:ffff:ffff:ffff:ffff |
| 100 | 2001:db8:abcd:63::/64 | 2001:db8:abcd:63:ffff:ffff:ffff:ffff |
| 101 | 2001:db8:abcd:64::/64 | 2001:db8:abcd:64:ffff:ffff:ffff:ffff |
| 102 | 2001:db8:abcd:65::/64 | 2001:db8:abcd:65:ffff:ffff:ffff:ffff |
| 103 | 2001:db8:abcd:66::/64 | 2001:db8:abcd:66:ffff:ffff:ffff:ffff |
| 104 | 2001:db8:abcd:67::/64 | 2001:db8:abcd:67:ffff:ffff:ffff:ffff |
| 105 | 2001:db8:abcd:68::/64 | 2001:db8:abcd:68:ffff:ffff:ffff:ffff |
| 106 | 2001:db8:abcd:69::/64 | 2001:db8:abcd:69:ffff:ffff:ffff:ffff |
| 107 | 2001:db8:abcd:6a::/64 | 2001:db8:abcd:6a:ffff:ffff:ffff:ffff |
| 108 | 2001:db8:abcd:6b::/64 | 2001:db8:abcd:6b:ffff:ffff:ffff:ffff |
| 109 | 2001:db8:abcd:6c::/64 | 2001:db8:abcd:6c:ffff:ffff:ffff:ffff |
| 110 | 2001:db8:abcd:6d::/64 | 2001:db8:abcd:6d:ffff:ffff:ffff:ffff |
| 111 | 2001:db8:abcd:6e::/64 | 2001:db8:abcd:6e:ffff:ffff:ffff:ffff |
| 112 | 2001:db8:abcd:6f::/64 | 2001:db8:abcd:6f:ffff:ffff:ffff:ffff |
| 113 | 2001:db8:abcd:70::/64 | 2001:db8:abcd:70:ffff:ffff:ffff:ffff |
| 114 | 2001:db8:abcd:71::/64 | 2001:db8:abcd:71:ffff:ffff:ffff:ffff |
| 115 | 2001:db8:abcd:72::/64 | 2001:db8:abcd:72:ffff:ffff:ffff:ffff |
| 116 | 2001:db8:abcd:73::/64 | 2001:db8:abcd:73:ffff:ffff:ffff:ffff |
| 117 | 2001:db8:abcd:74::/64 | 2001:db8:abcd:74:ffff:ffff:ffff:ffff |
| 118 | 2001:db8:abcd:75::/64 | 2001:db8:abcd:75:ffff:ffff:ffff:ffff |
| 119 | 2001:db8:abcd:76::/64 | 2001:db8:abcd:76:ffff:ffff:ffff:ffff |
| 120 | 2001:db8:abcd:77::/64 | 2001:db8:abcd:77:ffff:ffff:ffff:ffff |
| 121 | 2001:db8:abcd:78::/64 | 2001:db8:abcd:78:ffff:ffff:ffff:ffff |
| 122 | 2001:db8:abcd:79::/64 | 2001:db8:abcd:79:ffff:ffff:ffff:ffff |
| 123 | 2001:db8:abcd:7a::/64 | 2001:db8:abcd:7a:ffff:ffff:ffff:ffff |
| 124 | 2001:db8:abcd:7b::/64 | 2001:db8:abcd:7b:ffff:ffff:ffff:ffff |
| 125 | 2001:db8:abcd:7c::/64 | 2001:db8:abcd:7c:ffff:ffff:ffff:ffff |
| 126 | 2001:db8:abcd:7d::/64 | 2001:db8:abcd:7d:ffff:ffff:ffff:ffff |
| 127 | 2001:db8:abcd:7e::/64 | 2001:db8:abcd:7e:ffff:ffff:ffff:ffff |
| 128 | 2001:db8:abcd:7f::/64 | 2001:db8:abcd:7f:ffff:ffff:ffff:ffff |
| 129 | 2001:db8:abcd:80::/64 | 2001:db8:abcd:80:ffff:ffff:ffff:ffff |
| 130 | 2001:db8:abcd:81::/64 | 2001:db8:abcd:81:ffff:ffff:ffff:ffff |
| 131 | 2001:db8:abcd:82::/64 | 2001:db8:abcd:82:ffff:ffff:ffff:ffff |
| 132 | 2001:db8:abcd:83::/64 | 2001:db8:abcd:83:ffff:ffff:ffff:ffff |
| 133 | 2001:db8:abcd:84::/64 | 2001:db8:abcd:84:ffff:ffff:ffff:ffff |
| 134 | 2001:db8:abcd:85::/64 | 2001:db8:abcd:85:ffff:ffff:ffff:ffff |
| 135 | 2001:db8:abcd:86::/64 | 2001:db8:abcd:86:ffff:ffff:ffff:ffff |
| 136 | 2001:db8:abcd:87::/64 | 2001:db8:abcd:87:ffff:ffff:ffff:ffff |
| 137 | 2001:db8:abcd:88::/64 | 2001:db8:abcd:88:ffff:ffff:ffff:ffff |
| 138 | 2001:db8:abcd:89::/64 | 2001:db8:abcd:89:ffff:ffff:ffff:ffff |
| 139 | 2001:db8:abcd:8a::/64 | 2001:db8:abcd:8a:ffff:ffff:ffff:ffff |
| 140 | 2001:db8:abcd:8b::/64 | 2001:db8:abcd:8b:ffff:ffff:ffff:ffff |
| 141 | 2001:db8:abcd:8c::/64 | 2001:db8:abcd:8c:ffff:ffff:ffff:ffff |
| 142 | 2001:db8:abcd:8d::/64 | 2001:db8:abcd:8d:ffff:ffff:ffff:ffff |
| 143 | 2001:db8:abcd:8e::/64 | 2001:db8:abcd:8e:ffff:ffff:ffff:ffff |
| 144 | 2001:db8:abcd:8f::/64 | 2001:db8:abcd:8f:ffff:ffff:ffff:ffff |
| 145 | 2001:db8:abcd:90::/64 | 2001:db8:abcd:90:ffff:ffff:ffff:ffff |
| 146 | 2001:db8:abcd:91::/64 | 2001:db8:abcd:91:ffff:ffff:ffff:ffff |
| 147 | 2001:db8:abcd:92::/64 | 2001:db8:abcd:92:ffff:ffff:ffff:ffff |
| 148 | 2001:db8:abcd:93::/64 | 2001:db8:abcd:93:ffff:ffff:ffff:ffff |
| 149 | 2001:db8:abcd:94::/64 | 2001:db8:abcd:94:ffff:ffff:ffff:ffff |
| 150 | 2001:db8:abcd:95::/64 | 2001:db8:abcd:95:ffff:ffff:ffff:ffff |
| 151 | 2001:db8:abcd:96::/64 | 2001:db8:abcd:96:ffff:ffff:ffff:ffff |
| 152 | 2001:db8:abcd:97::/64 | 2001:db8:abcd:97:ffff:ffff:ffff:ffff |
| 153 | 2001:db8:abcd:98::/64 | 2001:db8:abcd:98:ffff:ffff:ffff:ffff |
| 154 | 2001:db8:abcd:99::/64 | 2001:db8:abcd:99:ffff:ffff:ffff:ffff |
| 155 | 2001:db8:abcd:9a::/64 | 2001:db8:abcd:9a:ffff:ffff:ffff:ffff |
| 156 | 2001:db8:abcd:9b::/64 | 2001:db8:abcd:9b:ffff:ffff:ffff:ffff |
| 157 | 2001:db8:abcd:9c::/64 | 2001:db8:abcd:9c:ffff:ffff:ffff:ffff |
| 158 | 2001:db8:abcd:9d::/64 | 2001:db8:abcd:9d:ffff:ffff:ffff:ffff |
| 159 | 2001:db8:abcd:9e::/64 | 2001:db8:abcd:9e:ffff:ffff:ffff:ffff |
| 160 | 2001:db8:abcd:9f::/64 | 2001:db8:abcd:9f:ffff:ffff:ffff:ffff |
| 161 | 2001:db8:abcd:a0::/64 | 2001:db8:abcd:a0:ffff:ffff:ffff:ffff |
| 162 | 2001:db8:abcd:a1::/64 | 2001:db8:abcd:a1:ffff:ffff:ffff:ffff |
| 163 | 2001:db8:abcd:a2::/64 | 2001:db8:abcd:a2:ffff:ffff:ffff:ffff |
| 164 | 2001:db8:abcd:a3::/64 | 2001:db8:abcd:a3:ffff:ffff:ffff:ffff |
| 165 | 2001:db8:abcd:a4::/64 | 2001:db8:abcd:a4:ffff:ffff:ffff:ffff |
| 166 | 2001:db8:abcd:a5::/64 | 2001:db8:abcd:a5:ffff:ffff:ffff:ffff |
| 167 | 2001:db8:abcd:a6::/64 | 2001:db8:abcd:a6:ffff:ffff:ffff:ffff |
| 168 | 2001:db8:abcd:a7::/64 | 2001:db8:abcd:a7:ffff:ffff:ffff:ffff |
| 169 | 2001:db8:abcd:a8::/64 | 2001:db8:abcd:a8:ffff:ffff:ffff:ffff |
| 170 | 2001:db8:abcd:a9::/64 | 2001:db8:abcd:a9:ffff:ffff:ffff:ffff |
| 171 | 2001:db8:abcd:aa::/64 | 2001:db8:abcd:aa:ffff:ffff:ffff:ffff |
| 172 | 2001:db8:abcd:ab::/64 | 2001:db8:abcd:ab:ffff:ffff:ffff:ffff |
| 173 | 2001:db8:abcd:ac::/64 | 2001:db8:abcd:ac:ffff:ffff:ffff:ffff |
| 174 | 2001:db8:abcd:ad::/64 | 2001:db8:abcd:ad:ffff:ffff:ffff:ffff |
| 175 | 2001:db8:abcd:ae::/64 | 2001:db8:abcd:ae:ffff:ffff:ffff:ffff |
| 176 | 2001:db8:abcd:af::/64 | 2001:db8:abcd:af:ffff:ffff:ffff:ffff |
| 177 | 2001:db8:abcd:b0::/64 | 2001:db8:abcd:b0:ffff:ffff:ffff:ffff |
| 178 | 2001:db8:abcd:b1::/64 | 2001:db8:abcd:b1:ffff:ffff:ffff:ffff |
| 179 | 2001:db8:abcd:b2::/64 | 2001:db8:abcd:b2:ffff:ffff:ffff:ffff |
| 180 | 2001:db8:abcd:b3::/64 | 2001:db8:abcd:b3:ffff:ffff:ffff:ffff |
| 181 | 2001:db8:abcd:b4::/64 | 2001:db8:abcd:b4:ffff:ffff:ffff:ffff |
| 182 | 2001:db8:abcd:b5::/64 | 2001:db8:abcd:b5:ffff:ffff:ffff:ffff |
| 183 | 2001:db8:abcd:b6::/64 | 2001:db8:abcd:b6:ffff:ffff:ffff:ffff |
| 184 | 2001:db8:abcd:b7::/64 | 2001:db8:abcd:b7:ffff:ffff:ffff:ffff |
| 185 | 2001:db8:abcd:b8::/64 | 2001:db8:abcd:b8:ffff:ffff:ffff:ffff |
| 186 | 2001:db8:abcd:b9::/64 | 2001:db8:abcd:b9:ffff:ffff:ffff:ffff |
| 187 | 2001:db8:abcd:ba::/64 | 2001:db8:abcd:ba:ffff:ffff:ffff:ffff |
| 188 | 2001:db8:abcd:bb::/64 | 2001:db8:abcd:bb:ffff:ffff:ffff:ffff |
| 189 | 2001:db8:abcd:bc::/64 | 2001:db8:abcd:bc:ffff:ffff:ffff:ffff |
| 190 | 2001:db8:abcd:bd::/64 | 2001:db8:abcd:bd:ffff:ffff:ffff:ffff |
| 191 | 2001:db8:abcd:be::/64 | 2001:db8:abcd:be:ffff:ffff:ffff:ffff |
| 192 | 2001:db8:abcd:bf::/64 | 2001:db8:abcd:bf:ffff:ffff:ffff:ffff |
| 193 | 2001:db8:abcd:c0::/64 | 2001:db8:abcd:c0:ffff:ffff:ffff:ffff |
| 194 | 2001:db8:abcd:c1::/64 | 2001:db8:abcd:c1:ffff:ffff:ffff:ffff |
| 195 | 2001:db8:abcd:c2::/64 | 2001:db8:abcd:c2:ffff:ffff:ffff:ffff |
| 196 | 2001:db8:abcd:c3::/64 | 2001:db8:abcd:c3:ffff:ffff:ffff:ffff |
| 197 | 2001:db8:abcd:c4::/64 | 2001:db8:abcd:c4:ffff:ffff:ffff:ffff |
| 198 | 2001:db8:abcd:c5::/64 | 2001:db8:abcd:c5:ffff:ffff:ffff:ffff |
| 199 | 2001:db8:abcd:c6::/64 | 2001:db8:abcd:c6:ffff:ffff:ffff:ffff |
| 200 | 2001:db8:abcd:c7::/64 | 2001:db8:abcd:c7:ffff:ffff:ffff:ffff |
| 201 | 2001:db8:abcd:c8::/64 | 2001:db8:abcd:c8:ffff:ffff:ffff:ffff |
| 202 | 2001:db8:abcd:c9::/64 | 2001:db8:abcd:c9:ffff:ffff:ffff:ffff |
| 203 | 2001:db8:abcd:ca::/64 | 2001:db8:abcd:ca:ffff:ffff:ffff:ffff |
| 204 | 2001:db8:abcd:cb::/64 | 2001:db8:abcd:cb:ffff:ffff:ffff:ffff |
| 205 | 2001:db8:abcd:cc::/64 | 2001:db8:abcd:cc:ffff:ffff:ffff:ffff |
| 206 | 2001:db8:abcd:cd::/64 | 2001:db8:abcd:cd:ffff:ffff:ffff:ffff |
| 207 | 2001:db8:abcd:ce::/64 | 2001:db8:abcd:ce:ffff:ffff:ffff:ffff |
| 208 | 2001:db8:abcd:cf::/64 | 2001:db8:abcd:cf:ffff:ffff:ffff:ffff |
| 209 | 2001:db8:abcd:d0::/64 | 2001:db8:abcd:d0:ffff:ffff:ffff:ffff |
| 210 | 2001:db8:abcd:d1::/64 | 2001:db8:abcd:d1:ffff:ffff:ffff:ffff |
| 211 | 2001:db8:abcd:d2::/64 | 2001:db8:abcd:d2:ffff:ffff:ffff:ffff |
| 212 | 2001:db8:abcd:d3::/64 | 2001:db8:abcd:d3:ffff:ffff:ffff:ffff |
| 213 | 2001:db8:abcd:d4::/64 | 2001:db8:abcd:d4:ffff:ffff:ffff:ffff |
| 214 | 2001:db8:abcd:d5::/64 | 2001:db8:abcd:d5:ffff:ffff:ffff:ffff |
| 215 | 2001:db8:abcd:d6::/64 | 2001:db8:abcd:d6:ffff:ffff:ffff:ffff |
| 216 | 2001:db8:abcd:d7::/64 | 2001:db8:abcd:d7:ffff:ffff:ffff:ffff |
| 217 | 2001:db8:abcd:d8::/64 | 2001:db8:abcd:d8:ffff:ffff:ffff:ffff |
| 218 | 2001:db8:abcd:d9::/64 | 2001:db8:abcd:d9:ffff:ffff:ffff:ffff |
| 219 | 2001:db8:abcd:da::/64 | 2001:db8:abcd:da:ffff:ffff:ffff:ffff |
| 220 | 2001:db8:abcd:db::/64 | 2001:db8:abcd:db:ffff:ffff:ffff:ffff |
| 221 | 2001:db8:abcd:dc::/64 | 2001:db8:abcd:dc:ffff:ffff:ffff:ffff |
| 222 | 2001:db8:abcd:dd::/64 | 2001:db8:abcd:dd:ffff:ffff:ffff:ffff |
| 223 | 2001:db8:abcd:de::/64 | 2001:db8:abcd:de:ffff:ffff:ffff:ffff |
| 224 | 2001:db8:abcd:df::/64 | 2001:db8:abcd:df:ffff:ffff:ffff:ffff |
| 225 | 2001:db8:abcd:e0::/64 | 2001:db8:abcd:e0:ffff:ffff:ffff:ffff |
| 226 | 2001:db8:abcd:e1::/64 | 2001:db8:abcd:e1:ffff:ffff:ffff:ffff |
| 227 | 2001:db8:abcd:e2::/64 | 2001:db8:abcd:e2:ffff:ffff:ffff:ffff |
| 228 | 2001:db8:abcd:e3::/64 | 2001:db8:abcd:e3:ffff:ffff:ffff:ffff |
| 229 | 2001:db8:abcd:e4::/64 | 2001:db8:abcd:e4:ffff:ffff:ffff:ffff |
| 230 | 2001:db8:abcd:e5::/64 | 2001:db8:abcd:e5:ffff:ffff:ffff:ffff |
| 231 | 2001:db8:abcd:e6::/64 | 2001:db8:abcd:e6:ffff:ffff:ffff:ffff |
| 232 | 2001:db8:abcd:e7::/64 | 2001:db8:abcd:e7:ffff:ffff:ffff:ffff |
| 233 | 2001:db8:abcd:e8::/64 | 2001:db8:abcd:e8:ffff:ffff:ffff:ffff |
| 234 | 2001:db8:abcd:e9::/64 | 2001:db8:abcd:e9:ffff:ffff:ffff:ffff |
| 235 | 2001:db8:abcd:ea::/64 | 2001:db8:abcd:ea:ffff:ffff:ffff:ffff |
| 236 | 2001:db8:abcd:eb::/64 | 2001:db8:abcd:eb:ffff:ffff:ffff:ffff |
| 237 | 2001:db8:abcd:ec::/64 | 2001:db8:abcd:ec:ffff:ffff:ffff:ffff |
| 238 | 2001:db8:abcd:ed::/64 | 2001:db8:abcd:ed:ffff:ffff:ffff:ffff |
| 239 | 2001:db8:abcd:ee::/64 | 2001:db8:abcd:ee:ffff:ffff:ffff:ffff |
| 240 | 2001:db8:abcd:ef::/64 | 2001:db8:abcd:ef:ffff:ffff:ffff:ffff |
| 241 | 2001:db8:abcd:f0::/64 | 2001:db8:abcd:f0:ffff:ffff:ffff:ffff |
| 242 | 2001:db8:abcd:f1::/64 | 2001:db8:abcd:f1:ffff:ffff:ffff:ffff |
| 243 | 2001:db8:abcd:f2::/64 | 2001:db8:abcd:f2:ffff:ffff:ffff:ffff |
| 244 | 2001:db8:abcd:f3::/64 | 2001:db8:abcd:f3:ffff:ffff:ffff:ffff |
| 245 | 2001:db8:abcd:f4::/64 | 2001:db8:abcd:f4:ffff:ffff:ffff:ffff |
| 246 | 2001:db8:abcd:f5::/64 | 2001:db8:abcd:f5:ffff:ffff:ffff:ffff |
| 247 | 2001:db8:abcd:f6::/64 | 2001:db8:abcd:f6:ffff:ffff:ffff:ffff |
| 248 | 2001:db8:abcd:f7::/64 | 2001:db8:abcd:f7:ffff:ffff:ffff:ffff |
| 249 | 2001:db8:abcd:f8::/64 | 2001:db8:abcd:f8:ffff:ffff:ffff:ffff |
| 250 | 2001:db8:abcd:f9::/64 | 2001:db8:abcd:f9:ffff:ffff:ffff:ffff |
| 251 | 2001:db8:abcd:fa::/64 | 2001:db8:abcd:fa:ffff:ffff:ffff:ffff |
| 252 | 2001:db8:abcd:fb::/64 | 2001:db8:abcd:fb:ffff:ffff:ffff:ffff |
| 253 | 2001:db8:abcd:fc::/64 | 2001:db8:abcd:fc:ffff:ffff:ffff:ffff |
| 254 | 2001:db8:abcd:fd::/64 | 2001:db8:abcd:fd:ffff:ffff:ffff:ffff |
| 255 | 2001:db8:abcd:fe::/64 | 2001:db8:abcd:fe:ffff:ffff:ffff:ffff |
| 256 | 2001:db8:abcd:ff::/64 | 2001:db8:abcd:ff:ffff:ffff:ffff:ffff |
Showing #1–256 of 65,536
Runs entirely in your browser. Nothing you enter is sent to a server.
How to use the IPv6 subnet calculator
Enter an IPv6 prefix such as 2001:db8:abcd::/48. The calculator shows the full range in compressed and expanded form and how many addresses it contains. Choose a target size to split the prefix into subnets; you can page through the list or jump straight to any subnet number. Everything is calculated in your browser.
Example: splitting a /48
A /48 leaves 16 bits between the site prefix and the /64 boundary, so 2001:db8:abcd::/48 contains 2¹⁶ = 65,536 /64 subnets: 2001:db8:abcd::/64, 2001:db8:abcd:1::/64,2001:db8:abcd:2::/64 … up to 2001:db8:abcd:ffff::/64. Split into /56 instead and you get 256 subnets, each with 256 /64s.
Common IPv6 prefix sizes
| Prefix | Typical use | /64 subnets inside |
|---|---|---|
| /32 | Allocation to an ISP (RIR minimum) | 4,294,967,296 |
| /48 | One site or organization | 65,536 |
| /56 | Home or small business connection | 256 |
| /60 | Some residential ISPs | 16 |
| /64 | One LAN / VLAN (required for SLAAC) | 1 |
| /127 | Point-to-point link (RFC 6164) | — |
| /128 | Single address (loopback, host route) | — |
IPv6 address compression rules
Leading zeros in each 16-bit group can be dropped (0db8 → db8), and one run of consecutive all-zero groups can be replaced with ::. So 2001:0db8:0000:0000:0000:0000:0000:0001 becomes2001:db8::1. :: can appear only once in an address.
FAQ
How many /64 subnets are in a /48?
65,536 (2¹⁶).
How many /64s are in a /56?
256 (2⁸).
Why should LAN subnets be /64?
SLAAC, the automatic address configuration most devices use, requires a 64-bit interface identifier, so a LAN smaller than /64 breaks it.
How many addresses are in a /64?
2⁶⁴ = 18,446,744,073,709,551,616.
Does IPv6 have a broadcast address?
No. IPv6 uses multicast instead (for example ff02::1 for all nodes on a link), so no address in the subnet is reserved for broadcast.