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ipku.in

IPv6 Subnet Calculator

Enter an IPv6 address with a prefix to see its network, address range, number of /64 subnets, and its full and short forms. You can also split the prefix into smaller subnets.

$ ipcalc
Try:2001:db8:abcd::1/482001:db8::/32fd00:1234::/56fe80::1/64
IPv4 calculator →
documentation2001:db8:abcd:100::/56
network2001:db8:abcd:100::/56
first host2001:db8:abcd:100::
last host2001:db8:abcd:1ff:ffff:ffff:ffff:ffff
addresses2⁷² = 4,722,366,482,869,645,213,696
/64 subnets256
short form2001:db8:abcd:100::
ipcalc 2001:db8:abcd:100::/56
address2001:0db8:abcd:0100:0000:0000:0000:0000
network2001:0db8:abcd:0100:0000:0000:0000:0000
last host2001:0db8:abcd:01ff:ffff:ffff:ffff:ffff
green = network digits, amber = digit split by the prefix
full form2001:0db8:abcd:0100:0000:0000:0000:0000
reverse dns0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.d.c.b.a.8.b.d.0.1.0.0.2.ip6.arpa

/56 split into /127 · 2,361,183,241,434,822,606,848 subnets

close ×
#networklast address
12001:db8:abcd:100::/1272001:db8:abcd:100::1
22001:db8:abcd:100::2/1272001:db8:abcd:100::3
32001:db8:abcd:100::4/1272001:db8:abcd:100::5
42001:db8:abcd:100::6/1272001:db8:abcd:100::7
52001:db8:abcd:100::8/1272001:db8:abcd:100::9
62001:db8:abcd:100::a/1272001:db8:abcd:100::b
72001:db8:abcd:100::c/1272001:db8:abcd:100::d
82001:db8:abcd:100::e/1272001:db8:abcd:100::f
92001:db8:abcd:100::10/1272001:db8:abcd:100::11
102001:db8:abcd:100::12/1272001:db8:abcd:100::13
112001:db8:abcd:100::14/1272001:db8:abcd:100::15
122001:db8:abcd:100::16/1272001:db8:abcd:100::17
132001:db8:abcd:100::18/1272001:db8:abcd:100::19
142001:db8:abcd:100::1a/1272001:db8:abcd:100::1b
152001:db8:abcd:100::1c/1272001:db8:abcd:100::1d
162001:db8:abcd:100::1e/1272001:db8:abcd:100::1f
172001:db8:abcd:100::20/1272001:db8:abcd:100::21
182001:db8:abcd:100::22/1272001:db8:abcd:100::23
192001:db8:abcd:100::24/1272001:db8:abcd:100::25
202001:db8:abcd:100::26/1272001:db8:abcd:100::27
212001:db8:abcd:100::28/1272001:db8:abcd:100::29
222001:db8:abcd:100::2a/1272001:db8:abcd:100::2b
232001:db8:abcd:100::2c/1272001:db8:abcd:100::2d
242001:db8:abcd:100::2e/1272001:db8:abcd:100::2f
252001:db8:abcd:100::30/1272001:db8:abcd:100::31
262001:db8:abcd:100::32/1272001:db8:abcd:100::33
272001:db8:abcd:100::34/1272001:db8:abcd:100::35
282001:db8:abcd:100::36/1272001:db8:abcd:100::37
292001:db8:abcd:100::38/1272001:db8:abcd:100::39
302001:db8:abcd:100::3a/1272001:db8:abcd:100::3b
312001:db8:abcd:100::3c/1272001:db8:abcd:100::3d
322001:db8:abcd:100::3e/1272001:db8:abcd:100::3f
332001:db8:abcd:100::40/1272001:db8:abcd:100::41
342001:db8:abcd:100::42/1272001:db8:abcd:100::43
352001:db8:abcd:100::44/1272001:db8:abcd:100::45
362001:db8:abcd:100::46/1272001:db8:abcd:100::47
372001:db8:abcd:100::48/1272001:db8:abcd:100::49
382001:db8:abcd:100::4a/1272001:db8:abcd:100::4b
392001:db8:abcd:100::4c/1272001:db8:abcd:100::4d
402001:db8:abcd:100::4e/1272001:db8:abcd:100::4f
412001:db8:abcd:100::50/1272001:db8:abcd:100::51
422001:db8:abcd:100::52/1272001:db8:abcd:100::53
432001:db8:abcd:100::54/1272001:db8:abcd:100::55
442001:db8:abcd:100::56/1272001:db8:abcd:100::57
452001:db8:abcd:100::58/1272001:db8:abcd:100::59
462001:db8:abcd:100::5a/1272001:db8:abcd:100::5b
472001:db8:abcd:100::5c/1272001:db8:abcd:100::5d
482001:db8:abcd:100::5e/1272001:db8:abcd:100::5f
492001:db8:abcd:100::60/1272001:db8:abcd:100::61
502001:db8:abcd:100::62/1272001:db8:abcd:100::63
512001:db8:abcd:100::64/1272001:db8:abcd:100::65
522001:db8:abcd:100::66/1272001:db8:abcd:100::67
532001:db8:abcd:100::68/1272001:db8:abcd:100::69
542001:db8:abcd:100::6a/1272001:db8:abcd:100::6b
552001:db8:abcd:100::6c/1272001:db8:abcd:100::6d
562001:db8:abcd:100::6e/1272001:db8:abcd:100::6f
572001:db8:abcd:100::70/1272001:db8:abcd:100::71
582001:db8:abcd:100::72/1272001:db8:abcd:100::73
592001:db8:abcd:100::74/1272001:db8:abcd:100::75
602001:db8:abcd:100::76/1272001:db8:abcd:100::77
612001:db8:abcd:100::78/1272001:db8:abcd:100::79
622001:db8:abcd:100::7a/1272001:db8:abcd:100::7b
632001:db8:abcd:100::7c/1272001:db8:abcd:100::7d
642001:db8:abcd:100::7e/1272001:db8:abcd:100::7f
652001:db8:abcd:100::80/1272001:db8:abcd:100::81
662001:db8:abcd:100::82/1272001:db8:abcd:100::83
672001:db8:abcd:100::84/1272001:db8:abcd:100::85
682001:db8:abcd:100::86/1272001:db8:abcd:100::87
692001:db8:abcd:100::88/1272001:db8:abcd:100::89
702001:db8:abcd:100::8a/1272001:db8:abcd:100::8b
712001:db8:abcd:100::8c/1272001:db8:abcd:100::8d
722001:db8:abcd:100::8e/1272001:db8:abcd:100::8f
732001:db8:abcd:100::90/1272001:db8:abcd:100::91
742001:db8:abcd:100::92/1272001:db8:abcd:100::93
752001:db8:abcd:100::94/1272001:db8:abcd:100::95
762001:db8:abcd:100::96/1272001:db8:abcd:100::97
772001:db8:abcd:100::98/1272001:db8:abcd:100::99
782001:db8:abcd:100::9a/1272001:db8:abcd:100::9b
792001:db8:abcd:100::9c/1272001:db8:abcd:100::9d
802001:db8:abcd:100::9e/1272001:db8:abcd:100::9f
812001:db8:abcd:100::a0/1272001:db8:abcd:100::a1
822001:db8:abcd:100::a2/1272001:db8:abcd:100::a3
832001:db8:abcd:100::a4/1272001:db8:abcd:100::a5
842001:db8:abcd:100::a6/1272001:db8:abcd:100::a7
852001:db8:abcd:100::a8/1272001:db8:abcd:100::a9
862001:db8:abcd:100::aa/1272001:db8:abcd:100::ab
872001:db8:abcd:100::ac/1272001:db8:abcd:100::ad
882001:db8:abcd:100::ae/1272001:db8:abcd:100::af
892001:db8:abcd:100::b0/1272001:db8:abcd:100::b1
902001:db8:abcd:100::b2/1272001:db8:abcd:100::b3
912001:db8:abcd:100::b4/1272001:db8:abcd:100::b5
922001:db8:abcd:100::b6/1272001:db8:abcd:100::b7
932001:db8:abcd:100::b8/1272001:db8:abcd:100::b9
942001:db8:abcd:100::ba/1272001:db8:abcd:100::bb
952001:db8:abcd:100::bc/1272001:db8:abcd:100::bd
962001:db8:abcd:100::be/1272001:db8:abcd:100::bf
972001:db8:abcd:100::c0/1272001:db8:abcd:100::c1
982001:db8:abcd:100::c2/1272001:db8:abcd:100::c3
992001:db8:abcd:100::c4/1272001:db8:abcd:100::c5
1002001:db8:abcd:100::c6/1272001:db8:abcd:100::c7
1012001:db8:abcd:100::c8/1272001:db8:abcd:100::c9
1022001:db8:abcd:100::ca/1272001:db8:abcd:100::cb
1032001:db8:abcd:100::cc/1272001:db8:abcd:100::cd
1042001:db8:abcd:100::ce/1272001:db8:abcd:100::cf
1052001:db8:abcd:100::d0/1272001:db8:abcd:100::d1
1062001:db8:abcd:100::d2/1272001:db8:abcd:100::d3
1072001:db8:abcd:100::d4/1272001:db8:abcd:100::d5
1082001:db8:abcd:100::d6/1272001:db8:abcd:100::d7
1092001:db8:abcd:100::d8/1272001:db8:abcd:100::d9
1102001:db8:abcd:100::da/1272001:db8:abcd:100::db
1112001:db8:abcd:100::dc/1272001:db8:abcd:100::dd
1122001:db8:abcd:100::de/1272001:db8:abcd:100::df
1132001:db8:abcd:100::e0/1272001:db8:abcd:100::e1
1142001:db8:abcd:100::e2/1272001:db8:abcd:100::e3
1152001:db8:abcd:100::e4/1272001:db8:abcd:100::e5
1162001:db8:abcd:100::e6/1272001:db8:abcd:100::e7
1172001:db8:abcd:100::e8/1272001:db8:abcd:100::e9
1182001:db8:abcd:100::ea/1272001:db8:abcd:100::eb
1192001:db8:abcd:100::ec/1272001:db8:abcd:100::ed
1202001:db8:abcd:100::ee/1272001:db8:abcd:100::ef
1212001:db8:abcd:100::f0/1272001:db8:abcd:100::f1
1222001:db8:abcd:100::f2/1272001:db8:abcd:100::f3
1232001:db8:abcd:100::f4/1272001:db8:abcd:100::f5
1242001:db8:abcd:100::f6/1272001:db8:abcd:100::f7
1252001:db8:abcd:100::f8/1272001:db8:abcd:100::f9
1262001:db8:abcd:100::fa/1272001:db8:abcd:100::fb
1272001:db8:abcd:100::fc/1272001:db8:abcd:100::fd
1282001:db8:abcd:100::fe/1272001:db8:abcd:100::ff
1292001:db8:abcd:100::100/1272001:db8:abcd:100::101
1302001:db8:abcd:100::102/1272001:db8:abcd:100::103
1312001:db8:abcd:100::104/1272001:db8:abcd:100::105
1322001:db8:abcd:100::106/1272001:db8:abcd:100::107
1332001:db8:abcd:100::108/1272001:db8:abcd:100::109
1342001:db8:abcd:100::10a/1272001:db8:abcd:100::10b
1352001:db8:abcd:100::10c/1272001:db8:abcd:100::10d
1362001:db8:abcd:100::10e/1272001:db8:abcd:100::10f
1372001:db8:abcd:100::110/1272001:db8:abcd:100::111
1382001:db8:abcd:100::112/1272001:db8:abcd:100::113
1392001:db8:abcd:100::114/1272001:db8:abcd:100::115
1402001:db8:abcd:100::116/1272001:db8:abcd:100::117
1412001:db8:abcd:100::118/1272001:db8:abcd:100::119
1422001:db8:abcd:100::11a/1272001:db8:abcd:100::11b
1432001:db8:abcd:100::11c/1272001:db8:abcd:100::11d
1442001:db8:abcd:100::11e/1272001:db8:abcd:100::11f
1452001:db8:abcd:100::120/1272001:db8:abcd:100::121
1462001:db8:abcd:100::122/1272001:db8:abcd:100::123
1472001:db8:abcd:100::124/1272001:db8:abcd:100::125
1482001:db8:abcd:100::126/1272001:db8:abcd:100::127
1492001:db8:abcd:100::128/1272001:db8:abcd:100::129
1502001:db8:abcd:100::12a/1272001:db8:abcd:100::12b
1512001:db8:abcd:100::12c/1272001:db8:abcd:100::12d
1522001:db8:abcd:100::12e/1272001:db8:abcd:100::12f
1532001:db8:abcd:100::130/1272001:db8:abcd:100::131
1542001:db8:abcd:100::132/1272001:db8:abcd:100::133
1552001:db8:abcd:100::134/1272001:db8:abcd:100::135
1562001:db8:abcd:100::136/1272001:db8:abcd:100::137
1572001:db8:abcd:100::138/1272001:db8:abcd:100::139
1582001:db8:abcd:100::13a/1272001:db8:abcd:100::13b
1592001:db8:abcd:100::13c/1272001:db8:abcd:100::13d
1602001:db8:abcd:100::13e/1272001:db8:abcd:100::13f
1612001:db8:abcd:100::140/1272001:db8:abcd:100::141
1622001:db8:abcd:100::142/1272001:db8:abcd:100::143
1632001:db8:abcd:100::144/1272001:db8:abcd:100::145
1642001:db8:abcd:100::146/1272001:db8:abcd:100::147
1652001:db8:abcd:100::148/1272001:db8:abcd:100::149
1662001:db8:abcd:100::14a/1272001:db8:abcd:100::14b
1672001:db8:abcd:100::14c/1272001:db8:abcd:100::14d
1682001:db8:abcd:100::14e/1272001:db8:abcd:100::14f
1692001:db8:abcd:100::150/1272001:db8:abcd:100::151
1702001:db8:abcd:100::152/1272001:db8:abcd:100::153
1712001:db8:abcd:100::154/1272001:db8:abcd:100::155
1722001:db8:abcd:100::156/1272001:db8:abcd:100::157
1732001:db8:abcd:100::158/1272001:db8:abcd:100::159
1742001:db8:abcd:100::15a/1272001:db8:abcd:100::15b
1752001:db8:abcd:100::15c/1272001:db8:abcd:100::15d
1762001:db8:abcd:100::15e/1272001:db8:abcd:100::15f
1772001:db8:abcd:100::160/1272001:db8:abcd:100::161
1782001:db8:abcd:100::162/1272001:db8:abcd:100::163
1792001:db8:abcd:100::164/1272001:db8:abcd:100::165
1802001:db8:abcd:100::166/1272001:db8:abcd:100::167
1812001:db8:abcd:100::168/1272001:db8:abcd:100::169
1822001:db8:abcd:100::16a/1272001:db8:abcd:100::16b
1832001:db8:abcd:100::16c/1272001:db8:abcd:100::16d
1842001:db8:abcd:100::16e/1272001:db8:abcd:100::16f
1852001:db8:abcd:100::170/1272001:db8:abcd:100::171
1862001:db8:abcd:100::172/1272001:db8:abcd:100::173
1872001:db8:abcd:100::174/1272001:db8:abcd:100::175
1882001:db8:abcd:100::176/1272001:db8:abcd:100::177
1892001:db8:abcd:100::178/1272001:db8:abcd:100::179
1902001:db8:abcd:100::17a/1272001:db8:abcd:100::17b
1912001:db8:abcd:100::17c/1272001:db8:abcd:100::17d
1922001:db8:abcd:100::17e/1272001:db8:abcd:100::17f
1932001:db8:abcd:100::180/1272001:db8:abcd:100::181
1942001:db8:abcd:100::182/1272001:db8:abcd:100::183
1952001:db8:abcd:100::184/1272001:db8:abcd:100::185
1962001:db8:abcd:100::186/1272001:db8:abcd:100::187
1972001:db8:abcd:100::188/1272001:db8:abcd:100::189
1982001:db8:abcd:100::18a/1272001:db8:abcd:100::18b
1992001:db8:abcd:100::18c/1272001:db8:abcd:100::18d
2002001:db8:abcd:100::18e/1272001:db8:abcd:100::18f
2012001:db8:abcd:100::190/1272001:db8:abcd:100::191
2022001:db8:abcd:100::192/1272001:db8:abcd:100::193
2032001:db8:abcd:100::194/1272001:db8:abcd:100::195
2042001:db8:abcd:100::196/1272001:db8:abcd:100::197
2052001:db8:abcd:100::198/1272001:db8:abcd:100::199
2062001:db8:abcd:100::19a/1272001:db8:abcd:100::19b
2072001:db8:abcd:100::19c/1272001:db8:abcd:100::19d
2082001:db8:abcd:100::19e/1272001:db8:abcd:100::19f
2092001:db8:abcd:100::1a0/1272001:db8:abcd:100::1a1
2102001:db8:abcd:100::1a2/1272001:db8:abcd:100::1a3
2112001:db8:abcd:100::1a4/1272001:db8:abcd:100::1a5
2122001:db8:abcd:100::1a6/1272001:db8:abcd:100::1a7
2132001:db8:abcd:100::1a8/1272001:db8:abcd:100::1a9
2142001:db8:abcd:100::1aa/1272001:db8:abcd:100::1ab
2152001:db8:abcd:100::1ac/1272001:db8:abcd:100::1ad
2162001:db8:abcd:100::1ae/1272001:db8:abcd:100::1af
2172001:db8:abcd:100::1b0/1272001:db8:abcd:100::1b1
2182001:db8:abcd:100::1b2/1272001:db8:abcd:100::1b3
2192001:db8:abcd:100::1b4/1272001:db8:abcd:100::1b5
2202001:db8:abcd:100::1b6/1272001:db8:abcd:100::1b7
2212001:db8:abcd:100::1b8/1272001:db8:abcd:100::1b9
2222001:db8:abcd:100::1ba/1272001:db8:abcd:100::1bb
2232001:db8:abcd:100::1bc/1272001:db8:abcd:100::1bd
2242001:db8:abcd:100::1be/1272001:db8:abcd:100::1bf
2252001:db8:abcd:100::1c0/1272001:db8:abcd:100::1c1
2262001:db8:abcd:100::1c2/1272001:db8:abcd:100::1c3
2272001:db8:abcd:100::1c4/1272001:db8:abcd:100::1c5
2282001:db8:abcd:100::1c6/1272001:db8:abcd:100::1c7
2292001:db8:abcd:100::1c8/1272001:db8:abcd:100::1c9
2302001:db8:abcd:100::1ca/1272001:db8:abcd:100::1cb
2312001:db8:abcd:100::1cc/1272001:db8:abcd:100::1cd
2322001:db8:abcd:100::1ce/1272001:db8:abcd:100::1cf
2332001:db8:abcd:100::1d0/1272001:db8:abcd:100::1d1
2342001:db8:abcd:100::1d2/1272001:db8:abcd:100::1d3
2352001:db8:abcd:100::1d4/1272001:db8:abcd:100::1d5
2362001:db8:abcd:100::1d6/1272001:db8:abcd:100::1d7
2372001:db8:abcd:100::1d8/1272001:db8:abcd:100::1d9
2382001:db8:abcd:100::1da/1272001:db8:abcd:100::1db
2392001:db8:abcd:100::1dc/1272001:db8:abcd:100::1dd
2402001:db8:abcd:100::1de/1272001:db8:abcd:100::1df
2412001:db8:abcd:100::1e0/1272001:db8:abcd:100::1e1
2422001:db8:abcd:100::1e2/1272001:db8:abcd:100::1e3
2432001:db8:abcd:100::1e4/1272001:db8:abcd:100::1e5
2442001:db8:abcd:100::1e6/1272001:db8:abcd:100::1e7
2452001:db8:abcd:100::1e8/1272001:db8:abcd:100::1e9
2462001:db8:abcd:100::1ea/1272001:db8:abcd:100::1eb
2472001:db8:abcd:100::1ec/1272001:db8:abcd:100::1ed
2482001:db8:abcd:100::1ee/1272001:db8:abcd:100::1ef
2492001:db8:abcd:100::1f0/1272001:db8:abcd:100::1f1
2502001:db8:abcd:100::1f2/1272001:db8:abcd:100::1f3
2512001:db8:abcd:100::1f4/1272001:db8:abcd:100::1f5
2522001:db8:abcd:100::1f6/1272001:db8:abcd:100::1f7
2532001:db8:abcd:100::1f8/1272001:db8:abcd:100::1f9
2542001:db8:abcd:100::1fa/1272001:db8:abcd:100::1fb
2552001:db8:abcd:100::1fc/1272001:db8:abcd:100::1fd
2562001:db8:abcd:100::1fe/1272001:db8:abcd:100::1ff

showing 256 of 2,361,183,241,434,822,606,848

01 / table

IPv6 prefix table.

Click a prefix longer than your network to split it into subnets.

prefixaddresses/64 subnetsin your /56
/82¹²⁰2⁵⁶-
/122¹¹⁶2⁵²-
/162¹¹²2⁴⁸-
/202¹⁰⁸2⁴⁴-
/242¹⁰⁴2⁴⁰-
/282¹⁰⁰2³⁶-
/322⁹⁶4,294,967,296-
/362⁹²268,435,456-
/402⁸⁸16,777,216-
/442⁸⁴1,048,576-
/482⁸⁰65,536-
/522⁷⁶4,096-
/562⁷²2561
/602⁶⁸1616 split →
/642⁶⁴1256 split →
/722⁵⁶-65,536 split →
/802⁴⁸-16,777,216 split →
/964,294,967,296-2⁴⁰ split →
/11265,536-2⁵⁶ split →
/120256-2⁶⁴ split →
/12416-2⁶⁸ split →
/1264-2⁷⁰ split →
/1272-2⁷¹ split →
/1281-2⁷² split →
02 / faq

About this calculator.

How do I use this IPv6 calculator?

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Type an IPv6 address followed by a prefix, like 2001:db8:abcd::1/48. Without a prefix it uses /64. The address can be written in full or shortened with ::.

Why does IPv6 have no broadcast address?

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IPv6 replaced broadcast with multicast, so no address is set aside for it. That is why this calculator shows the whole range, from the network address to the last address.

What prefix do ISPs usually hand out?

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A single LAN is almost always a /64. Home customers usually get a /56 or /60, and an organization or site usually gets a /48. One /48 holds 65,536 /64 subnets.

Learn how to work it out →