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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 →
unique local (ULA)fd00:1234::/56
networkfd00:1234::/56
first hostfd00:1234::
last hostfd00:1234:0:ff:ffff:ffff:ffff:ffff
addresses2⁷² = 4,722,366,482,869,645,213,696
/64 subnets256
short formfd00:1234::
ipcalc fd00:1234::/56
addressfd00:1234:0000:0000:0000:0000:0000:0000
networkfd00:1234:0000:0000:0000:0000:0000:0000
last hostfd00:1234:0000:00ff:ffff:ffff:ffff:ffff
green = network digits, amber = digit split by the prefix
full formfd00:1234:0000:0000:0000:0000:0000:0000
reverse dns0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.4.3.2.1.0.0.d.f.ip6.arpa

/56 split into /112 · 72,057,594,037,927,936 subnets

close ×
#networklast address
1fd00:1234::/112fd00:1234::ffff
2fd00:1234::1:0/112fd00:1234::1:ffff
3fd00:1234::2:0/112fd00:1234::2:ffff
4fd00:1234::3:0/112fd00:1234::3:ffff
5fd00:1234::4:0/112fd00:1234::4:ffff
6fd00:1234::5:0/112fd00:1234::5:ffff
7fd00:1234::6:0/112fd00:1234::6:ffff
8fd00:1234::7:0/112fd00:1234::7:ffff
9fd00:1234::8:0/112fd00:1234::8:ffff
10fd00:1234::9:0/112fd00:1234::9:ffff
11fd00:1234::a:0/112fd00:1234::a:ffff
12fd00:1234::b:0/112fd00:1234::b:ffff
13fd00:1234::c:0/112fd00:1234::c:ffff
14fd00:1234::d:0/112fd00:1234::d:ffff
15fd00:1234::e:0/112fd00:1234::e:ffff
16fd00:1234::f:0/112fd00:1234::f:ffff
17fd00:1234::10:0/112fd00:1234::10:ffff
18fd00:1234::11:0/112fd00:1234::11:ffff
19fd00:1234::12:0/112fd00:1234::12:ffff
20fd00:1234::13:0/112fd00:1234::13:ffff
21fd00:1234::14:0/112fd00:1234::14:ffff
22fd00:1234::15:0/112fd00:1234::15:ffff
23fd00:1234::16:0/112fd00:1234::16:ffff
24fd00:1234::17:0/112fd00:1234::17:ffff
25fd00:1234::18:0/112fd00:1234::18:ffff
26fd00:1234::19:0/112fd00:1234::19:ffff
27fd00:1234::1a:0/112fd00:1234::1a:ffff
28fd00:1234::1b:0/112fd00:1234::1b:ffff
29fd00:1234::1c:0/112fd00:1234::1c:ffff
30fd00:1234::1d:0/112fd00:1234::1d:ffff
31fd00:1234::1e:0/112fd00:1234::1e:ffff
32fd00:1234::1f:0/112fd00:1234::1f:ffff
33fd00:1234::20:0/112fd00:1234::20:ffff
34fd00:1234::21:0/112fd00:1234::21:ffff
35fd00:1234::22:0/112fd00:1234::22:ffff
36fd00:1234::23:0/112fd00:1234::23:ffff
37fd00:1234::24:0/112fd00:1234::24:ffff
38fd00:1234::25:0/112fd00:1234::25:ffff
39fd00:1234::26:0/112fd00:1234::26:ffff
40fd00:1234::27:0/112fd00:1234::27:ffff
41fd00:1234::28:0/112fd00:1234::28:ffff
42fd00:1234::29:0/112fd00:1234::29:ffff
43fd00:1234::2a:0/112fd00:1234::2a:ffff
44fd00:1234::2b:0/112fd00:1234::2b:ffff
45fd00:1234::2c:0/112fd00:1234::2c:ffff
46fd00:1234::2d:0/112fd00:1234::2d:ffff
47fd00:1234::2e:0/112fd00:1234::2e:ffff
48fd00:1234::2f:0/112fd00:1234::2f:ffff
49fd00:1234::30:0/112fd00:1234::30:ffff
50fd00:1234::31:0/112fd00:1234::31:ffff
51fd00:1234::32:0/112fd00:1234::32:ffff
52fd00:1234::33:0/112fd00:1234::33:ffff
53fd00:1234::34:0/112fd00:1234::34:ffff
54fd00:1234::35:0/112fd00:1234::35:ffff
55fd00:1234::36:0/112fd00:1234::36:ffff
56fd00:1234::37:0/112fd00:1234::37:ffff
57fd00:1234::38:0/112fd00:1234::38:ffff
58fd00:1234::39:0/112fd00:1234::39:ffff
59fd00:1234::3a:0/112fd00:1234::3a:ffff
60fd00:1234::3b:0/112fd00:1234::3b:ffff
61fd00:1234::3c:0/112fd00:1234::3c:ffff
62fd00:1234::3d:0/112fd00:1234::3d:ffff
63fd00:1234::3e:0/112fd00:1234::3e:ffff
64fd00:1234::3f:0/112fd00:1234::3f:ffff
65fd00:1234::40:0/112fd00:1234::40:ffff
66fd00:1234::41:0/112fd00:1234::41:ffff
67fd00:1234::42:0/112fd00:1234::42:ffff
68fd00:1234::43:0/112fd00:1234::43:ffff
69fd00:1234::44:0/112fd00:1234::44:ffff
70fd00:1234::45:0/112fd00:1234::45:ffff
71fd00:1234::46:0/112fd00:1234::46:ffff
72fd00:1234::47:0/112fd00:1234::47:ffff
73fd00:1234::48:0/112fd00:1234::48:ffff
74fd00:1234::49:0/112fd00:1234::49:ffff
75fd00:1234::4a:0/112fd00:1234::4a:ffff
76fd00:1234::4b:0/112fd00:1234::4b:ffff
77fd00:1234::4c:0/112fd00:1234::4c:ffff
78fd00:1234::4d:0/112fd00:1234::4d:ffff
79fd00:1234::4e:0/112fd00:1234::4e:ffff
80fd00:1234::4f:0/112fd00:1234::4f:ffff
81fd00:1234::50:0/112fd00:1234::50:ffff
82fd00:1234::51:0/112fd00:1234::51:ffff
83fd00:1234::52:0/112fd00:1234::52:ffff
84fd00:1234::53:0/112fd00:1234::53:ffff
85fd00:1234::54:0/112fd00:1234::54:ffff
86fd00:1234::55:0/112fd00:1234::55:ffff
87fd00:1234::56:0/112fd00:1234::56:ffff
88fd00:1234::57:0/112fd00:1234::57:ffff
89fd00:1234::58:0/112fd00:1234::58:ffff
90fd00:1234::59:0/112fd00:1234::59:ffff
91fd00:1234::5a:0/112fd00:1234::5a:ffff
92fd00:1234::5b:0/112fd00:1234::5b:ffff
93fd00:1234::5c:0/112fd00:1234::5c:ffff
94fd00:1234::5d:0/112fd00:1234::5d:ffff
95fd00:1234::5e:0/112fd00:1234::5e:ffff
96fd00:1234::5f:0/112fd00:1234::5f:ffff
97fd00:1234::60:0/112fd00:1234::60:ffff
98fd00:1234::61:0/112fd00:1234::61:ffff
99fd00:1234::62:0/112fd00:1234::62:ffff
100fd00:1234::63:0/112fd00:1234::63:ffff
101fd00:1234::64:0/112fd00:1234::64:ffff
102fd00:1234::65:0/112fd00:1234::65:ffff
103fd00:1234::66:0/112fd00:1234::66:ffff
104fd00:1234::67:0/112fd00:1234::67:ffff
105fd00:1234::68:0/112fd00:1234::68:ffff
106fd00:1234::69:0/112fd00:1234::69:ffff
107fd00:1234::6a:0/112fd00:1234::6a:ffff
108fd00:1234::6b:0/112fd00:1234::6b:ffff
109fd00:1234::6c:0/112fd00:1234::6c:ffff
110fd00:1234::6d:0/112fd00:1234::6d:ffff
111fd00:1234::6e:0/112fd00:1234::6e:ffff
112fd00:1234::6f:0/112fd00:1234::6f:ffff
113fd00:1234::70:0/112fd00:1234::70:ffff
114fd00:1234::71:0/112fd00:1234::71:ffff
115fd00:1234::72:0/112fd00:1234::72:ffff
116fd00:1234::73:0/112fd00:1234::73:ffff
117fd00:1234::74:0/112fd00:1234::74:ffff
118fd00:1234::75:0/112fd00:1234::75:ffff
119fd00:1234::76:0/112fd00:1234::76:ffff
120fd00:1234::77:0/112fd00:1234::77:ffff
121fd00:1234::78:0/112fd00:1234::78:ffff
122fd00:1234::79:0/112fd00:1234::79:ffff
123fd00:1234::7a:0/112fd00:1234::7a:ffff
124fd00:1234::7b:0/112fd00:1234::7b:ffff
125fd00:1234::7c:0/112fd00:1234::7c:ffff
126fd00:1234::7d:0/112fd00:1234::7d:ffff
127fd00:1234::7e:0/112fd00:1234::7e:ffff
128fd00:1234::7f:0/112fd00:1234::7f:ffff
129fd00:1234::80:0/112fd00:1234::80:ffff
130fd00:1234::81:0/112fd00:1234::81:ffff
131fd00:1234::82:0/112fd00:1234::82:ffff
132fd00:1234::83:0/112fd00:1234::83:ffff
133fd00:1234::84:0/112fd00:1234::84:ffff
134fd00:1234::85:0/112fd00:1234::85:ffff
135fd00:1234::86:0/112fd00:1234::86:ffff
136fd00:1234::87:0/112fd00:1234::87:ffff
137fd00:1234::88:0/112fd00:1234::88:ffff
138fd00:1234::89:0/112fd00:1234::89:ffff
139fd00:1234::8a:0/112fd00:1234::8a:ffff
140fd00:1234::8b:0/112fd00:1234::8b:ffff
141fd00:1234::8c:0/112fd00:1234::8c:ffff
142fd00:1234::8d:0/112fd00:1234::8d:ffff
143fd00:1234::8e:0/112fd00:1234::8e:ffff
144fd00:1234::8f:0/112fd00:1234::8f:ffff
145fd00:1234::90:0/112fd00:1234::90:ffff
146fd00:1234::91:0/112fd00:1234::91:ffff
147fd00:1234::92:0/112fd00:1234::92:ffff
148fd00:1234::93:0/112fd00:1234::93:ffff
149fd00:1234::94:0/112fd00:1234::94:ffff
150fd00:1234::95:0/112fd00:1234::95:ffff
151fd00:1234::96:0/112fd00:1234::96:ffff
152fd00:1234::97:0/112fd00:1234::97:ffff
153fd00:1234::98:0/112fd00:1234::98:ffff
154fd00:1234::99:0/112fd00:1234::99:ffff
155fd00:1234::9a:0/112fd00:1234::9a:ffff
156fd00:1234::9b:0/112fd00:1234::9b:ffff
157fd00:1234::9c:0/112fd00:1234::9c:ffff
158fd00:1234::9d:0/112fd00:1234::9d:ffff
159fd00:1234::9e:0/112fd00:1234::9e:ffff
160fd00:1234::9f:0/112fd00:1234::9f:ffff
161fd00:1234::a0:0/112fd00:1234::a0:ffff
162fd00:1234::a1:0/112fd00:1234::a1:ffff
163fd00:1234::a2:0/112fd00:1234::a2:ffff
164fd00:1234::a3:0/112fd00:1234::a3:ffff
165fd00:1234::a4:0/112fd00:1234::a4:ffff
166fd00:1234::a5:0/112fd00:1234::a5:ffff
167fd00:1234::a6:0/112fd00:1234::a6:ffff
168fd00:1234::a7:0/112fd00:1234::a7:ffff
169fd00:1234::a8:0/112fd00:1234::a8:ffff
170fd00:1234::a9:0/112fd00:1234::a9:ffff
171fd00:1234::aa:0/112fd00:1234::aa:ffff
172fd00:1234::ab:0/112fd00:1234::ab:ffff
173fd00:1234::ac:0/112fd00:1234::ac:ffff
174fd00:1234::ad:0/112fd00:1234::ad:ffff
175fd00:1234::ae:0/112fd00:1234::ae:ffff
176fd00:1234::af:0/112fd00:1234::af:ffff
177fd00:1234::b0:0/112fd00:1234::b0:ffff
178fd00:1234::b1:0/112fd00:1234::b1:ffff
179fd00:1234::b2:0/112fd00:1234::b2:ffff
180fd00:1234::b3:0/112fd00:1234::b3:ffff
181fd00:1234::b4:0/112fd00:1234::b4:ffff
182fd00:1234::b5:0/112fd00:1234::b5:ffff
183fd00:1234::b6:0/112fd00:1234::b6:ffff
184fd00:1234::b7:0/112fd00:1234::b7:ffff
185fd00:1234::b8:0/112fd00:1234::b8:ffff
186fd00:1234::b9:0/112fd00:1234::b9:ffff
187fd00:1234::ba:0/112fd00:1234::ba:ffff
188fd00:1234::bb:0/112fd00:1234::bb:ffff
189fd00:1234::bc:0/112fd00:1234::bc:ffff
190fd00:1234::bd:0/112fd00:1234::bd:ffff
191fd00:1234::be:0/112fd00:1234::be:ffff
192fd00:1234::bf:0/112fd00:1234::bf:ffff
193fd00:1234::c0:0/112fd00:1234::c0:ffff
194fd00:1234::c1:0/112fd00:1234::c1:ffff
195fd00:1234::c2:0/112fd00:1234::c2:ffff
196fd00:1234::c3:0/112fd00:1234::c3:ffff
197fd00:1234::c4:0/112fd00:1234::c4:ffff
198fd00:1234::c5:0/112fd00:1234::c5:ffff
199fd00:1234::c6:0/112fd00:1234::c6:ffff
200fd00:1234::c7:0/112fd00:1234::c7:ffff
201fd00:1234::c8:0/112fd00:1234::c8:ffff
202fd00:1234::c9:0/112fd00:1234::c9:ffff
203fd00:1234::ca:0/112fd00:1234::ca:ffff
204fd00:1234::cb:0/112fd00:1234::cb:ffff
205fd00:1234::cc:0/112fd00:1234::cc:ffff
206fd00:1234::cd:0/112fd00:1234::cd:ffff
207fd00:1234::ce:0/112fd00:1234::ce:ffff
208fd00:1234::cf:0/112fd00:1234::cf:ffff
209fd00:1234::d0:0/112fd00:1234::d0:ffff
210fd00:1234::d1:0/112fd00:1234::d1:ffff
211fd00:1234::d2:0/112fd00:1234::d2:ffff
212fd00:1234::d3:0/112fd00:1234::d3:ffff
213fd00:1234::d4:0/112fd00:1234::d4:ffff
214fd00:1234::d5:0/112fd00:1234::d5:ffff
215fd00:1234::d6:0/112fd00:1234::d6:ffff
216fd00:1234::d7:0/112fd00:1234::d7:ffff
217fd00:1234::d8:0/112fd00:1234::d8:ffff
218fd00:1234::d9:0/112fd00:1234::d9:ffff
219fd00:1234::da:0/112fd00:1234::da:ffff
220fd00:1234::db:0/112fd00:1234::db:ffff
221fd00:1234::dc:0/112fd00:1234::dc:ffff
222fd00:1234::dd:0/112fd00:1234::dd:ffff
223fd00:1234::de:0/112fd00:1234::de:ffff
224fd00:1234::df:0/112fd00:1234::df:ffff
225fd00:1234::e0:0/112fd00:1234::e0:ffff
226fd00:1234::e1:0/112fd00:1234::e1:ffff
227fd00:1234::e2:0/112fd00:1234::e2:ffff
228fd00:1234::e3:0/112fd00:1234::e3:ffff
229fd00:1234::e4:0/112fd00:1234::e4:ffff
230fd00:1234::e5:0/112fd00:1234::e5:ffff
231fd00:1234::e6:0/112fd00:1234::e6:ffff
232fd00:1234::e7:0/112fd00:1234::e7:ffff
233fd00:1234::e8:0/112fd00:1234::e8:ffff
234fd00:1234::e9:0/112fd00:1234::e9:ffff
235fd00:1234::ea:0/112fd00:1234::ea:ffff
236fd00:1234::eb:0/112fd00:1234::eb:ffff
237fd00:1234::ec:0/112fd00:1234::ec:ffff
238fd00:1234::ed:0/112fd00:1234::ed:ffff
239fd00:1234::ee:0/112fd00:1234::ee:ffff
240fd00:1234::ef:0/112fd00:1234::ef:ffff
241fd00:1234::f0:0/112fd00:1234::f0:ffff
242fd00:1234::f1:0/112fd00:1234::f1:ffff
243fd00:1234::f2:0/112fd00:1234::f2:ffff
244fd00:1234::f3:0/112fd00:1234::f3:ffff
245fd00:1234::f4:0/112fd00:1234::f4:ffff
246fd00:1234::f5:0/112fd00:1234::f5:ffff
247fd00:1234::f6:0/112fd00:1234::f6:ffff
248fd00:1234::f7:0/112fd00:1234::f7:ffff
249fd00:1234::f8:0/112fd00:1234::f8:ffff
250fd00:1234::f9:0/112fd00:1234::f9:ffff
251fd00:1234::fa:0/112fd00:1234::fa:ffff
252fd00:1234::fb:0/112fd00:1234::fb:ffff
253fd00:1234::fc:0/112fd00:1234::fc:ffff
254fd00:1234::fd:0/112fd00:1234::fd:ffff
255fd00:1234::fe:0/112fd00:1234::fe:ffff
256fd00:1234::ff:0/112fd00:1234::ff:ffff

showing 256 of 72,057,594,037,927,936

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?

▼

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?

▼

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?

▼

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 →