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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)fd00:1234:0:0:ec00::/72
networkfd00:1234:0:0:ec00::/72
first hostfd00:1234:0:0:ec00::
last hostfd00:1234::ecff:ffff:ffff:ffff
addresses2⁵⁶ = 72,057,594,037,927,936
short formfd00:1234:0:0:ec00::
ipcalc fd00:1234:0:0:ec00::/72
addressfd00:1234:0000:0000:ec00:0000:0000:0000
networkfd00:1234:0000:0000:ec00:0000:0000:0000
last hostfd00:1234:0000:0000:ecff:ffff:ffff:ffff
green = network digits, amber = digit split by the prefix
full formfd00:1234:0000:0000:ec00:0000:0000:0000
reverse dns0.0.0.0.0.0.0.0.0.0.0.0.0.0.c.e.0.0.0.0.0.0.0.0.4.3.2.1.0.0.d.f.ip6.arpa

/72 split into /126 · 18,014,398,509,481,984 subnets

close ×
#networklast address
1fd00:1234:0:0:ec00::/126fd00:1234::ec00:0:0:3
2fd00:1234::ec00:0:0:4/126fd00:1234::ec00:0:0:7
3fd00:1234::ec00:0:0:8/126fd00:1234::ec00:0:0:b
4fd00:1234::ec00:0:0:c/126fd00:1234::ec00:0:0:f
5fd00:1234::ec00:0:0:10/126fd00:1234::ec00:0:0:13
6fd00:1234::ec00:0:0:14/126fd00:1234::ec00:0:0:17
7fd00:1234::ec00:0:0:18/126fd00:1234::ec00:0:0:1b
8fd00:1234::ec00:0:0:1c/126fd00:1234::ec00:0:0:1f
9fd00:1234::ec00:0:0:20/126fd00:1234::ec00:0:0:23
10fd00:1234::ec00:0:0:24/126fd00:1234::ec00:0:0:27
11fd00:1234::ec00:0:0:28/126fd00:1234::ec00:0:0:2b
12fd00:1234::ec00:0:0:2c/126fd00:1234::ec00:0:0:2f
13fd00:1234::ec00:0:0:30/126fd00:1234::ec00:0:0:33
14fd00:1234::ec00:0:0:34/126fd00:1234::ec00:0:0:37
15fd00:1234::ec00:0:0:38/126fd00:1234::ec00:0:0:3b
16fd00:1234::ec00:0:0:3c/126fd00:1234::ec00:0:0:3f
17fd00:1234::ec00:0:0:40/126fd00:1234::ec00:0:0:43
18fd00:1234::ec00:0:0:44/126fd00:1234::ec00:0:0:47
19fd00:1234::ec00:0:0:48/126fd00:1234::ec00:0:0:4b
20fd00:1234::ec00:0:0:4c/126fd00:1234::ec00:0:0:4f
21fd00:1234::ec00:0:0:50/126fd00:1234::ec00:0:0:53
22fd00:1234::ec00:0:0:54/126fd00:1234::ec00:0:0:57
23fd00:1234::ec00:0:0:58/126fd00:1234::ec00:0:0:5b
24fd00:1234::ec00:0:0:5c/126fd00:1234::ec00:0:0:5f
25fd00:1234::ec00:0:0:60/126fd00:1234::ec00:0:0:63
26fd00:1234::ec00:0:0:64/126fd00:1234::ec00:0:0:67
27fd00:1234::ec00:0:0:68/126fd00:1234::ec00:0:0:6b
28fd00:1234::ec00:0:0:6c/126fd00:1234::ec00:0:0:6f
29fd00:1234::ec00:0:0:70/126fd00:1234::ec00:0:0:73
30fd00:1234::ec00:0:0:74/126fd00:1234::ec00:0:0:77
31fd00:1234::ec00:0:0:78/126fd00:1234::ec00:0:0:7b
32fd00:1234::ec00:0:0:7c/126fd00:1234::ec00:0:0:7f
33fd00:1234::ec00:0:0:80/126fd00:1234::ec00:0:0:83
34fd00:1234::ec00:0:0:84/126fd00:1234::ec00:0:0:87
35fd00:1234::ec00:0:0:88/126fd00:1234::ec00:0:0:8b
36fd00:1234::ec00:0:0:8c/126fd00:1234::ec00:0:0:8f
37fd00:1234::ec00:0:0:90/126fd00:1234::ec00:0:0:93
38fd00:1234::ec00:0:0:94/126fd00:1234::ec00:0:0:97
39fd00:1234::ec00:0:0:98/126fd00:1234::ec00:0:0:9b
40fd00:1234::ec00:0:0:9c/126fd00:1234::ec00:0:0:9f
41fd00:1234::ec00:0:0:a0/126fd00:1234::ec00:0:0:a3
42fd00:1234::ec00:0:0:a4/126fd00:1234::ec00:0:0:a7
43fd00:1234::ec00:0:0:a8/126fd00:1234::ec00:0:0:ab
44fd00:1234::ec00:0:0:ac/126fd00:1234::ec00:0:0:af
45fd00:1234::ec00:0:0:b0/126fd00:1234::ec00:0:0:b3
46fd00:1234::ec00:0:0:b4/126fd00:1234::ec00:0:0:b7
47fd00:1234::ec00:0:0:b8/126fd00:1234::ec00:0:0:bb
48fd00:1234::ec00:0:0:bc/126fd00:1234::ec00:0:0:bf
49fd00:1234::ec00:0:0:c0/126fd00:1234::ec00:0:0:c3
50fd00:1234::ec00:0:0:c4/126fd00:1234::ec00:0:0:c7
51fd00:1234::ec00:0:0:c8/126fd00:1234::ec00:0:0:cb
52fd00:1234::ec00:0:0:cc/126fd00:1234::ec00:0:0:cf
53fd00:1234::ec00:0:0:d0/126fd00:1234::ec00:0:0:d3
54fd00:1234::ec00:0:0:d4/126fd00:1234::ec00:0:0:d7
55fd00:1234::ec00:0:0:d8/126fd00:1234::ec00:0:0:db
56fd00:1234::ec00:0:0:dc/126fd00:1234::ec00:0:0:df
57fd00:1234::ec00:0:0:e0/126fd00:1234::ec00:0:0:e3
58fd00:1234::ec00:0:0:e4/126fd00:1234::ec00:0:0:e7
59fd00:1234::ec00:0:0:e8/126fd00:1234::ec00:0:0:eb
60fd00:1234::ec00:0:0:ec/126fd00:1234::ec00:0:0:ef
61fd00:1234::ec00:0:0:f0/126fd00:1234::ec00:0:0:f3
62fd00:1234::ec00:0:0:f4/126fd00:1234::ec00:0:0:f7
63fd00:1234::ec00:0:0:f8/126fd00:1234::ec00:0:0:fb
64fd00:1234::ec00:0:0:fc/126fd00:1234::ec00:0:0:ff
65fd00:1234::ec00:0:0:100/126fd00:1234::ec00:0:0:103
66fd00:1234::ec00:0:0:104/126fd00:1234::ec00:0:0:107
67fd00:1234::ec00:0:0:108/126fd00:1234::ec00:0:0:10b
68fd00:1234::ec00:0:0:10c/126fd00:1234::ec00:0:0:10f
69fd00:1234::ec00:0:0:110/126fd00:1234::ec00:0:0:113
70fd00:1234::ec00:0:0:114/126fd00:1234::ec00:0:0:117
71fd00:1234::ec00:0:0:118/126fd00:1234::ec00:0:0:11b
72fd00:1234::ec00:0:0:11c/126fd00:1234::ec00:0:0:11f
73fd00:1234::ec00:0:0:120/126fd00:1234::ec00:0:0:123
74fd00:1234::ec00:0:0:124/126fd00:1234::ec00:0:0:127
75fd00:1234::ec00:0:0:128/126fd00:1234::ec00:0:0:12b
76fd00:1234::ec00:0:0:12c/126fd00:1234::ec00:0:0:12f
77fd00:1234::ec00:0:0:130/126fd00:1234::ec00:0:0:133
78fd00:1234::ec00:0:0:134/126fd00:1234::ec00:0:0:137
79fd00:1234::ec00:0:0:138/126fd00:1234::ec00:0:0:13b
80fd00:1234::ec00:0:0:13c/126fd00:1234::ec00:0:0:13f
81fd00:1234::ec00:0:0:140/126fd00:1234::ec00:0:0:143
82fd00:1234::ec00:0:0:144/126fd00:1234::ec00:0:0:147
83fd00:1234::ec00:0:0:148/126fd00:1234::ec00:0:0:14b
84fd00:1234::ec00:0:0:14c/126fd00:1234::ec00:0:0:14f
85fd00:1234::ec00:0:0:150/126fd00:1234::ec00:0:0:153
86fd00:1234::ec00:0:0:154/126fd00:1234::ec00:0:0:157
87fd00:1234::ec00:0:0:158/126fd00:1234::ec00:0:0:15b
88fd00:1234::ec00:0:0:15c/126fd00:1234::ec00:0:0:15f
89fd00:1234::ec00:0:0:160/126fd00:1234::ec00:0:0:163
90fd00:1234::ec00:0:0:164/126fd00:1234::ec00:0:0:167
91fd00:1234::ec00:0:0:168/126fd00:1234::ec00:0:0:16b
92fd00:1234::ec00:0:0:16c/126fd00:1234::ec00:0:0:16f
93fd00:1234::ec00:0:0:170/126fd00:1234::ec00:0:0:173
94fd00:1234::ec00:0:0:174/126fd00:1234::ec00:0:0:177
95fd00:1234::ec00:0:0:178/126fd00:1234::ec00:0:0:17b
96fd00:1234::ec00:0:0:17c/126fd00:1234::ec00:0:0:17f
97fd00:1234::ec00:0:0:180/126fd00:1234::ec00:0:0:183
98fd00:1234::ec00:0:0:184/126fd00:1234::ec00:0:0:187
99fd00:1234::ec00:0:0:188/126fd00:1234::ec00:0:0:18b
100fd00:1234::ec00:0:0:18c/126fd00:1234::ec00:0:0:18f
101fd00:1234::ec00:0:0:190/126fd00:1234::ec00:0:0:193
102fd00:1234::ec00:0:0:194/126fd00:1234::ec00:0:0:197
103fd00:1234::ec00:0:0:198/126fd00:1234::ec00:0:0:19b
104fd00:1234::ec00:0:0:19c/126fd00:1234::ec00:0:0:19f
105fd00:1234::ec00:0:0:1a0/126fd00:1234::ec00:0:0:1a3
106fd00:1234::ec00:0:0:1a4/126fd00:1234::ec00:0:0:1a7
107fd00:1234::ec00:0:0:1a8/126fd00:1234::ec00:0:0:1ab
108fd00:1234::ec00:0:0:1ac/126fd00:1234::ec00:0:0:1af
109fd00:1234::ec00:0:0:1b0/126fd00:1234::ec00:0:0:1b3
110fd00:1234::ec00:0:0:1b4/126fd00:1234::ec00:0:0:1b7
111fd00:1234::ec00:0:0:1b8/126fd00:1234::ec00:0:0:1bb
112fd00:1234::ec00:0:0:1bc/126fd00:1234::ec00:0:0:1bf
113fd00:1234::ec00:0:0:1c0/126fd00:1234::ec00:0:0:1c3
114fd00:1234::ec00:0:0:1c4/126fd00:1234::ec00:0:0:1c7
115fd00:1234::ec00:0:0:1c8/126fd00:1234::ec00:0:0:1cb
116fd00:1234::ec00:0:0:1cc/126fd00:1234::ec00:0:0:1cf
117fd00:1234::ec00:0:0:1d0/126fd00:1234::ec00:0:0:1d3
118fd00:1234::ec00:0:0:1d4/126fd00:1234::ec00:0:0:1d7
119fd00:1234::ec00:0:0:1d8/126fd00:1234::ec00:0:0:1db
120fd00:1234::ec00:0:0:1dc/126fd00:1234::ec00:0:0:1df
121fd00:1234::ec00:0:0:1e0/126fd00:1234::ec00:0:0:1e3
122fd00:1234::ec00:0:0:1e4/126fd00:1234::ec00:0:0:1e7
123fd00:1234::ec00:0:0:1e8/126fd00:1234::ec00:0:0:1eb
124fd00:1234::ec00:0:0:1ec/126fd00:1234::ec00:0:0:1ef
125fd00:1234::ec00:0:0:1f0/126fd00:1234::ec00:0:0:1f3
126fd00:1234::ec00:0:0:1f4/126fd00:1234::ec00:0:0:1f7
127fd00:1234::ec00:0:0:1f8/126fd00:1234::ec00:0:0:1fb
128fd00:1234::ec00:0:0:1fc/126fd00:1234::ec00:0:0:1ff
129fd00:1234::ec00:0:0:200/126fd00:1234::ec00:0:0:203
130fd00:1234::ec00:0:0:204/126fd00:1234::ec00:0:0:207
131fd00:1234::ec00:0:0:208/126fd00:1234::ec00:0:0:20b
132fd00:1234::ec00:0:0:20c/126fd00:1234::ec00:0:0:20f
133fd00:1234::ec00:0:0:210/126fd00:1234::ec00:0:0:213
134fd00:1234::ec00:0:0:214/126fd00:1234::ec00:0:0:217
135fd00:1234::ec00:0:0:218/126fd00:1234::ec00:0:0:21b
136fd00:1234::ec00:0:0:21c/126fd00:1234::ec00:0:0:21f
137fd00:1234::ec00:0:0:220/126fd00:1234::ec00:0:0:223
138fd00:1234::ec00:0:0:224/126fd00:1234::ec00:0:0:227
139fd00:1234::ec00:0:0:228/126fd00:1234::ec00:0:0:22b
140fd00:1234::ec00:0:0:22c/126fd00:1234::ec00:0:0:22f
141fd00:1234::ec00:0:0:230/126fd00:1234::ec00:0:0:233
142fd00:1234::ec00:0:0:234/126fd00:1234::ec00:0:0:237
143fd00:1234::ec00:0:0:238/126fd00:1234::ec00:0:0:23b
144fd00:1234::ec00:0:0:23c/126fd00:1234::ec00:0:0:23f
145fd00:1234::ec00:0:0:240/126fd00:1234::ec00:0:0:243
146fd00:1234::ec00:0:0:244/126fd00:1234::ec00:0:0:247
147fd00:1234::ec00:0:0:248/126fd00:1234::ec00:0:0:24b
148fd00:1234::ec00:0:0:24c/126fd00:1234::ec00:0:0:24f
149fd00:1234::ec00:0:0:250/126fd00:1234::ec00:0:0:253
150fd00:1234::ec00:0:0:254/126fd00:1234::ec00:0:0:257
151fd00:1234::ec00:0:0:258/126fd00:1234::ec00:0:0:25b
152fd00:1234::ec00:0:0:25c/126fd00:1234::ec00:0:0:25f
153fd00:1234::ec00:0:0:260/126fd00:1234::ec00:0:0:263
154fd00:1234::ec00:0:0:264/126fd00:1234::ec00:0:0:267
155fd00:1234::ec00:0:0:268/126fd00:1234::ec00:0:0:26b
156fd00:1234::ec00:0:0:26c/126fd00:1234::ec00:0:0:26f
157fd00:1234::ec00:0:0:270/126fd00:1234::ec00:0:0:273
158fd00:1234::ec00:0:0:274/126fd00:1234::ec00:0:0:277
159fd00:1234::ec00:0:0:278/126fd00:1234::ec00:0:0:27b
160fd00:1234::ec00:0:0:27c/126fd00:1234::ec00:0:0:27f
161fd00:1234::ec00:0:0:280/126fd00:1234::ec00:0:0:283
162fd00:1234::ec00:0:0:284/126fd00:1234::ec00:0:0:287
163fd00:1234::ec00:0:0:288/126fd00:1234::ec00:0:0:28b
164fd00:1234::ec00:0:0:28c/126fd00:1234::ec00:0:0:28f
165fd00:1234::ec00:0:0:290/126fd00:1234::ec00:0:0:293
166fd00:1234::ec00:0:0:294/126fd00:1234::ec00:0:0:297
167fd00:1234::ec00:0:0:298/126fd00:1234::ec00:0:0:29b
168fd00:1234::ec00:0:0:29c/126fd00:1234::ec00:0:0:29f
169fd00:1234::ec00:0:0:2a0/126fd00:1234::ec00:0:0:2a3
170fd00:1234::ec00:0:0:2a4/126fd00:1234::ec00:0:0:2a7
171fd00:1234::ec00:0:0:2a8/126fd00:1234::ec00:0:0:2ab
172fd00:1234::ec00:0:0:2ac/126fd00:1234::ec00:0:0:2af
173fd00:1234::ec00:0:0:2b0/126fd00:1234::ec00:0:0:2b3
174fd00:1234::ec00:0:0:2b4/126fd00:1234::ec00:0:0:2b7
175fd00:1234::ec00:0:0:2b8/126fd00:1234::ec00:0:0:2bb
176fd00:1234::ec00:0:0:2bc/126fd00:1234::ec00:0:0:2bf
177fd00:1234::ec00:0:0:2c0/126fd00:1234::ec00:0:0:2c3
178fd00:1234::ec00:0:0:2c4/126fd00:1234::ec00:0:0:2c7
179fd00:1234::ec00:0:0:2c8/126fd00:1234::ec00:0:0:2cb
180fd00:1234::ec00:0:0:2cc/126fd00:1234::ec00:0:0:2cf
181fd00:1234::ec00:0:0:2d0/126fd00:1234::ec00:0:0:2d3
182fd00:1234::ec00:0:0:2d4/126fd00:1234::ec00:0:0:2d7
183fd00:1234::ec00:0:0:2d8/126fd00:1234::ec00:0:0:2db
184fd00:1234::ec00:0:0:2dc/126fd00:1234::ec00:0:0:2df
185fd00:1234::ec00:0:0:2e0/126fd00:1234::ec00:0:0:2e3
186fd00:1234::ec00:0:0:2e4/126fd00:1234::ec00:0:0:2e7
187fd00:1234::ec00:0:0:2e8/126fd00:1234::ec00:0:0:2eb
188fd00:1234::ec00:0:0:2ec/126fd00:1234::ec00:0:0:2ef
189fd00:1234::ec00:0:0:2f0/126fd00:1234::ec00:0:0:2f3
190fd00:1234::ec00:0:0:2f4/126fd00:1234::ec00:0:0:2f7
191fd00:1234::ec00:0:0:2f8/126fd00:1234::ec00:0:0:2fb
192fd00:1234::ec00:0:0:2fc/126fd00:1234::ec00:0:0:2ff
193fd00:1234::ec00:0:0:300/126fd00:1234::ec00:0:0:303
194fd00:1234::ec00:0:0:304/126fd00:1234::ec00:0:0:307
195fd00:1234::ec00:0:0:308/126fd00:1234::ec00:0:0:30b
196fd00:1234::ec00:0:0:30c/126fd00:1234::ec00:0:0:30f
197fd00:1234::ec00:0:0:310/126fd00:1234::ec00:0:0:313
198fd00:1234::ec00:0:0:314/126fd00:1234::ec00:0:0:317
199fd00:1234::ec00:0:0:318/126fd00:1234::ec00:0:0:31b
200fd00:1234::ec00:0:0:31c/126fd00:1234::ec00:0:0:31f
201fd00:1234::ec00:0:0:320/126fd00:1234::ec00:0:0:323
202fd00:1234::ec00:0:0:324/126fd00:1234::ec00:0:0:327
203fd00:1234::ec00:0:0:328/126fd00:1234::ec00:0:0:32b
204fd00:1234::ec00:0:0:32c/126fd00:1234::ec00:0:0:32f
205fd00:1234::ec00:0:0:330/126fd00:1234::ec00:0:0:333
206fd00:1234::ec00:0:0:334/126fd00:1234::ec00:0:0:337
207fd00:1234::ec00:0:0:338/126fd00:1234::ec00:0:0:33b
208fd00:1234::ec00:0:0:33c/126fd00:1234::ec00:0:0:33f
209fd00:1234::ec00:0:0:340/126fd00:1234::ec00:0:0:343
210fd00:1234::ec00:0:0:344/126fd00:1234::ec00:0:0:347
211fd00:1234::ec00:0:0:348/126fd00:1234::ec00:0:0:34b
212fd00:1234::ec00:0:0:34c/126fd00:1234::ec00:0:0:34f
213fd00:1234::ec00:0:0:350/126fd00:1234::ec00:0:0:353
214fd00:1234::ec00:0:0:354/126fd00:1234::ec00:0:0:357
215fd00:1234::ec00:0:0:358/126fd00:1234::ec00:0:0:35b
216fd00:1234::ec00:0:0:35c/126fd00:1234::ec00:0:0:35f
217fd00:1234::ec00:0:0:360/126fd00:1234::ec00:0:0:363
218fd00:1234::ec00:0:0:364/126fd00:1234::ec00:0:0:367
219fd00:1234::ec00:0:0:368/126fd00:1234::ec00:0:0:36b
220fd00:1234::ec00:0:0:36c/126fd00:1234::ec00:0:0:36f
221fd00:1234::ec00:0:0:370/126fd00:1234::ec00:0:0:373
222fd00:1234::ec00:0:0:374/126fd00:1234::ec00:0:0:377
223fd00:1234::ec00:0:0:378/126fd00:1234::ec00:0:0:37b
224fd00:1234::ec00:0:0:37c/126fd00:1234::ec00:0:0:37f
225fd00:1234::ec00:0:0:380/126fd00:1234::ec00:0:0:383
226fd00:1234::ec00:0:0:384/126fd00:1234::ec00:0:0:387
227fd00:1234::ec00:0:0:388/126fd00:1234::ec00:0:0:38b
228fd00:1234::ec00:0:0:38c/126fd00:1234::ec00:0:0:38f
229fd00:1234::ec00:0:0:390/126fd00:1234::ec00:0:0:393
230fd00:1234::ec00:0:0:394/126fd00:1234::ec00:0:0:397
231fd00:1234::ec00:0:0:398/126fd00:1234::ec00:0:0:39b
232fd00:1234::ec00:0:0:39c/126fd00:1234::ec00:0:0:39f
233fd00:1234::ec00:0:0:3a0/126fd00:1234::ec00:0:0:3a3
234fd00:1234::ec00:0:0:3a4/126fd00:1234::ec00:0:0:3a7
235fd00:1234::ec00:0:0:3a8/126fd00:1234::ec00:0:0:3ab
236fd00:1234::ec00:0:0:3ac/126fd00:1234::ec00:0:0:3af
237fd00:1234::ec00:0:0:3b0/126fd00:1234::ec00:0:0:3b3
238fd00:1234::ec00:0:0:3b4/126fd00:1234::ec00:0:0:3b7
239fd00:1234::ec00:0:0:3b8/126fd00:1234::ec00:0:0:3bb
240fd00:1234::ec00:0:0:3bc/126fd00:1234::ec00:0:0:3bf
241fd00:1234::ec00:0:0:3c0/126fd00:1234::ec00:0:0:3c3
242fd00:1234::ec00:0:0:3c4/126fd00:1234::ec00:0:0:3c7
243fd00:1234::ec00:0:0:3c8/126fd00:1234::ec00:0:0:3cb
244fd00:1234::ec00:0:0:3cc/126fd00:1234::ec00:0:0:3cf
245fd00:1234::ec00:0:0:3d0/126fd00:1234::ec00:0:0:3d3
246fd00:1234::ec00:0:0:3d4/126fd00:1234::ec00:0:0:3d7
247fd00:1234::ec00:0:0:3d8/126fd00:1234::ec00:0:0:3db
248fd00:1234::ec00:0:0:3dc/126fd00:1234::ec00:0:0:3df
249fd00:1234::ec00:0:0:3e0/126fd00:1234::ec00:0:0:3e3
250fd00:1234::ec00:0:0:3e4/126fd00:1234::ec00:0:0:3e7
251fd00:1234::ec00:0:0:3e8/126fd00:1234::ec00:0:0:3eb
252fd00:1234::ec00:0:0:3ec/126fd00:1234::ec00:0:0:3ef
253fd00:1234::ec00:0:0:3f0/126fd00:1234::ec00:0:0:3f3
254fd00:1234::ec00:0:0:3f4/126fd00:1234::ec00:0:0:3f7
255fd00:1234::ec00:0:0:3f8/126fd00:1234::ec00:0:0:3fb
256fd00:1234::ec00:0:0:3fc/126fd00:1234::ec00:0:0:3ff

showing 256 of 18,014,398,509,481,984

01 / table

IPv6 prefix table.

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

prefixaddresses/64 subnetsin your /72
/82¹²⁰2⁵⁶-
/122¹¹⁶2⁵²-
/162¹¹²2⁴⁸-
/202¹⁰⁸2⁴⁴-
/242¹⁰⁴2⁴⁰-
/282¹⁰⁰2³⁶-
/322⁹⁶4,294,967,296-
/362⁹²268,435,456-
/402⁸⁸16,777,216-
/442⁸⁴1,048,576-
/482⁸⁰65,536-
/522⁷⁶4,096-
/562⁷²256-
/602⁶⁸16-
/642⁶⁴1-
/722⁵⁶-1
/802⁴⁸-256 split →
/964,294,967,296-16,777,216 split →
/11265,536-2⁴⁰ split →
/120256-2⁴⁸ split →
/12416-2⁵² split →
/1264-2⁵⁴ split →
/1272-2⁵⁵ split →
/1281-2⁵⁶ 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 →