Classes of CNNIC IP Address Alliance Members
IPv4 addresses: (Divided into 20 classes from 1C to 2A)
Class |
Range of Prefixes of IPv4 Addresses |
Annual Fee (RMB) |
1 |
≤1C |
7,000 |
2 |
>1C, ≤2C |
9,000 |
3 |
>2C, ≤4C |
10,000 |
4 |
>4C, ≤8C |
15,000 |
5 |
>8C, ≤16C |
20,000 |
6 |
>16C, ≤32C |
26,000 |
7 |
>32C, ≤64C |
33,000 |
8 |
>64C, ≤128C |
42,000 |
9 |
>128C, ≤1B |
55,000 |
10 |
>1B, ≤2B |
70,000 |
11 |
>2B, ≤4B |
92,000 |
12 |
>4B, ≤8B |
115,000 |
13 |
>8B, ≤12B |
135,000 |
14 |
>12B, ≤16B |
155,000 |
15 |
>16B, ≤20B |
175,000 |
16 |
>20B, ≤32B |
200,000 |
17 |
>32B, ≤64B |
260,000 |
18 |
>64B, ≤128B |
350,000 |
19 |
>128B, ≤1A |
420,000 |
20 |
>1A, ≤2A |
540,000 |
IPv6 addresses: (divided into 13 classes from /32 to /20)
Class |
Range of Prefix of IPv4 Address |
Annual Fee (RMB) |
1 |
≤/32 |
10,000 |
2 |
>/32, ≤/31 |
15,000 |
3 |
>/31, ≤/30 |
20,000 |
4 |
>/30, ≤/29 |
26,000 |
5 |
>/29, ≤/28 |
33,000 |
6 |
>/28, ≤/27 |
44,000 |
7 |
>/27, ≤/26 |
57,000 |
8 |
>/26, ≤/25 |
74,000 |
9 |
>/25, ≤/24 |
96,000 |
10 |
>/24, ≤/23 |
125,000 |
11 |
>/23, ≤/22 |
163,000 |
12 |
>/22, ≤/21 |
212,000 |
13 |
>/21, ≤/20 |
276,000 |
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