AS4538

Name: AS4538 — China Education and Research Network Center
Creator: ipdex

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 118.203.112.0/22 unknown
v4 118.203.116.0/22 unknown
v4 118.203.120.0/21 unknown
v4 118.203.128.0/20 unknown
v4 118.203.144.0/21 unknown
v4 118.203.152.0/21 unknown
v4 118.203.160.0/20 unknown
v4 118.203.176.0/20 unknown
v4 118.203.192.0/22 unknown
v4 118.203.196.0/22 unknown
v4 118.203.200.0/21 unknown
v4 118.203.208.0/20 unknown
v4 118.203.64.0/20 unknown
v4 118.203.96.0/22 unknown
v4 118.228.0.0/15 unknown
v4 118.228.150.0/24 valid
v4 118.228.160.0/19 unknown
v4 118.228.192.0/20 unknown
v4 118.228.208.0/20 unknown
v4 118.228.224.0/20 unknown
v4 118.228.244.0/23 unknown
v4 118.228.244.0/24 valid
v4 118.228.245.0/24 valid
v4 118.228.246.0/24 valid
v4 118.228.248.0/21 unknown
v4 118.228.32.0/23 unknown
v4 118.228.40.0/21 unknown
v4 118.229.0.0/19 unknown
v4 118.229.0.0/20 unknown
v4 118.229.128.0/17 unknown
v4 118.229.16.0/20 unknown
v4 118.229.96.0/19 unknown
v4 118.230.0.0/16 unknown
v4 118.230.0.0/18 unknown
v4 118.230.224.0/19 unknown
v4 118.230.64.0/19 unknown
v4 118.230.96.0/19 unknown
v4 120.94.0.0/15 unknown
v4 120.94.0.0/16 unknown
v4 120.94.0.0/20 unknown
v4 120.94.128.0/18 unknown
v4 120.94.16.0/24 valid
v4 120.94.216.0/21 unknown
v4 120.94.224.0/21 unknown
v4 120.94.232.0/21 unknown
v4 120.94.24.0/22 unknown
v4 120.94.240.0/22 unknown
v4 120.94.244.0/22 unknown
v4 120.94.248.0/21 unknown
v4 120.94.64.0/19 unknown

RPKI: rpki.cloudflare.com · 2026-06-22

— Routing status unavailable

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

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

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AS4538

Announced prefixes · 5,880

Prefix history

AS topology · Customer cone 17

Providers · 12

Peers · 33

Customers · 15

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