AS4538
China Education and Research Network Center Education registered in China
4,962IPv4 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 4,962 IPv4 prefixes + 918 IPv6 prefixes. Rank in China: #2. Allocated: 2002-08-01.
IPv4 4,962IPv6 918
Announced prefixes · 5,880
- v4 116.57.207.0/24 valid
- v4 116.57.208.0/23 unknown
- v4 116.57.210.0/23 unknown
- v4 116.57.212.0/23 unknown
- v4 116.57.214.0/23 unknown
- v4 116.57.216.0/23 unknown
- v4 116.57.218.0/23 unknown
- v4 116.57.220.0/23 unknown
- v4 116.57.222.0/23 unknown
- v4 116.57.225.0/24 valid
- v4 116.57.226.0/23 unknown
- v4 116.57.228.0/23 unknown
- v4 116.57.230.0/24 valid
- v4 116.57.231.0/24 valid
- v4 116.57.232.0/23 unknown
- v4 116.57.234.0/23 unknown
- v4 116.57.236.0/24 valid
- v4 116.57.237.0/24 valid
- v4 116.57.238.0/23 unknown
- v4 116.57.240.0/23 unknown
- v4 116.57.242.0/24 valid
- v4 116.57.243.0/24 valid
- v4 116.57.244.0/22 unknown
- v4 116.57.248.0/23 unknown
- v4 116.57.250.0/23 unknown
- v4 116.57.253.0/24 valid
- v4 116.57.48.0/20 unknown
- v4 116.57.64.0/18 unknown
- v4 118.202.0.0/15 unknown
- v4 118.202.0.0/19 unknown
- v4 118.202.112.0/22 unknown
- v4 118.202.116.0/23 unknown
- v4 118.202.120.0/21 unknown
- v4 118.202.128.0/20 unknown
- v4 118.202.144.0/20 unknown
- v4 118.202.160.0/20 unknown
- v4 118.202.208.0/20 unknown
- v4 118.202.212.0/24 valid
- v4 118.202.224.0/20 unknown
- v4 118.202.240.0/20 unknown
- v4 118.202.32.0/20 unknown
- v4 118.202.48.0/24 valid
- v4 118.202.50.0/23 unknown
- v4 118.202.52.0/23 unknown
- v4 118.202.54.0/23 unknown
- v4 118.202.56.0/21 unknown
- v4 118.202.64.0/19 unknown
- v4 118.202.96.0/20 unknown
- v4 118.203.0.0/18 unknown
- v4 118.203.112.0/21 unknown
RPKI: rpki.cloudflare.com · 2026-06-21
— 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 |