AS4538
China Education and Research Network Center Education registered in China
5,056IPv4 prefixes
918IPv6 prefixes
39%RPKI-valid
#1,787AS Rank
#2Rank in China
2002-08-01Allocated
China Education and Research Network Center (AS4538) — Education, registered in China. announces 5,056 IPv4 prefixes + 918 IPv6 prefixes. Rank in China: #2. Allocated: 2002-08-01.
IPv4 5,056IPv6 918
Announced prefixes · 5,974
- v4 122.204.144.0/20 unknown
- v4 122.204.160.0/20 unknown
- v4 122.204.176.0/20 unknown
- v4 122.204.192.0/19 unknown
- v4 122.204.224.0/21 unknown
- v4 122.204.232.0/23 unknown
- v4 122.204.240.0/20 unknown
- v4 122.204.40.0/23 unknown
- v4 122.204.42.0/23 unknown
- v4 122.204.44.0/22 unknown
- v4 122.204.48.0/20 unknown
- v4 122.204.64.0/19 unknown
- v4 122.204.96.0/21 unknown
- v4 122.205.0.0/22 unknown
- v4 122.205.104.0/23 unknown
- v4 122.205.112.0/20 unknown
- v4 122.205.128.0/20 unknown
- v4 122.205.16.0/20 unknown
- v4 122.205.32.0/19 unknown
- v4 122.205.4.0/22 unknown
- v4 122.205.64.0/19 unknown
- v4 122.205.8.0/21 unknown
- v4 122.205.96.0/21 unknown
- v4 122.206.0.0/21 unknown
- v4 122.206.112.0/21 unknown
- v4 122.206.120.0/21 unknown
- v4 122.206.144.0/20 unknown
- v4 122.206.16.0/21 unknown
- v4 122.206.160.0/19 unknown
- v4 122.206.192.0/19 unknown
- v4 122.206.224.0/19 unknown
- v4 122.206.24.0/21 unknown
- v4 122.206.32.0/19 unknown
- v4 122.206.64.0/20 unknown
- v4 122.206.8.0/21 unknown
- v4 122.206.80.0/22 unknown
- v4 122.206.84.0/23 unknown
- v4 122.206.86.0/23 unknown
- v4 122.206.88.0/22 unknown
- v4 122.206.92.0/24 valid
- v4 122.206.94.0/23 unknown
- v4 122.206.96.0/20 unknown
- v4 122.207.0.0/23 unknown
- v4 122.207.128.0/19 unknown
- v4 122.207.16.0/20 unknown
- v4 122.207.160.0/19 unknown
- v4 122.207.192.0/20 unknown
- v4 122.207.2.0/24 valid
- v4 122.207.208.0/20 unknown
- v4 122.207.32.0/19 unknown
RPKI: rpki.cloudflare.com · 2026-06-23
— Routing status unavailable
Prefix history
Data table
| Day | Announced prefixes |
|---|---|
| 2026-06-12 | 5882 |
| 2026-06-13 | 5882 |
| 2026-06-14 | 5880 |
| 2026-06-16 | 5880 |
| 2026-06-17 | 5878 |
| 2026-06-19 | 5881 |
| 2026-06-20 | 5880 |
| 2026-06-23 | 5974 |