206208 looking glass

AS4538 China Education and Research Network Center 🇨🇳 CN

Announcing 5,168 prefixes, seen at the RIS collectors.

IPv4 prefixes
5,158
42,948,864 (167,769 × /24)
IPv6 prefixes
10
265 × /48
Upstreams
14
transit providers observed
Peers
9
settlement-free adjacencies
Downstreams
16
transit customers observed
Customer cone
86
ASes reachable through it

Registry and operator data

AS number
AS4538
Name
China Education and Research Network Center
Organisation
CERNET-CN
Country
🇨🇳 CN
RIR
APNIC
Allocated
2002-08-01
Network type
Educational/Research
Scope
Not Disclosed
Peering policy
Open
Website
http://www.edu.cn
PeeringDB
net/13851

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

1,461 valid (28.3%) 2 invalid (0.0%) 3,705 no ROA (71.7%)

Announced prefixes

5,168 in total

Prefix RPKI Peers Sample path First seen
210.44.32.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.40.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.48.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.44.64.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.80.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.112.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.112.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.120.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.128.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.144.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.160.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.176.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.192.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.208.0/20 v4 no ROA 13 244824538 2026-09-18
210.44.232.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.244.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.44.248.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.0.0/16 v4 no ROA 13 244824538 2026-09-18
210.45.0.0/17 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.18.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.34.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.48.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.64.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.65.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.84.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.86.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.87.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.92.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.95.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.112.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.128.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.140.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.141.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.161.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.169.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.177.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.179.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.193.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.199.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.216.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.45.232.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.234.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.236.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.238.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.240.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
210.45.241.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
210.46.8.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.46.48.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.46.50.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.46.64.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.46.80.0/20 v4 no ROA 4 557202376441344538 2026-10-07
210.46.96.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.46.97.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.46.100.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.46.112.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.46.113.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.46.122.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.46.123.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.46.127.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.46.136.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.46.144.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.46.152.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.46.176.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.46.192.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.46.216.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.46.248.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.47.0.0/16 v4 no ROA 13 244824538 2026-09-18
210.47.0.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.47.1.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.47.7.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.47.10.0/23 v4 no ROA 4 557202376441344538 2026-09-18
210.47.12.0/22 v4 no ROA 4 557202376441344538 2026-09-18
210.47.16.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.32.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.56.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.47.64.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.98.0/23 v4 no ROA 4 557202376441344538 2026-09-18
210.47.100.0/23 v4 no ROA 4 557202376441344538 2026-09-18
210.47.104.0/21 v4 no ROA 4 557202376441344538 2026-09-18
210.47.112.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.128.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.144.0/22 v4 no ROA 4 557202376441344538 2026-09-18
210.47.148.0/22 v4 no ROA 4 557202376441344538 2026-09-18
210.47.160.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.176.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.192.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.208.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.224.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.228.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.47.229.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.47.240.0/20 v4 no ROA 4 557202376441344538 2026-09-18
210.47.243.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
210.47.250.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.64.0.0/13 v4 no ROA 49 244824538 2026-09-18
211.64.0.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.8.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.16.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.32.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.48.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.48.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.64.56.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.64.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.64.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.66.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.72.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.80.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.96.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.104.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.112.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.116.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.116.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-10-05
211.64.117.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.64.120.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.128.0/20 v4 no ROA 4 557202376441344538 2026-09-18
211.64.128.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.64.129.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.64.130.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.64.142.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.64.143.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.64.144.0/20 v4 no ROA 4 557202376441344538 2026-09-18
211.64.144.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.64.145.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.64.148.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.64.150.0/23 v4 no ROA 4 557202376441344538 2026-09-18
211.64.152.0/21 v4 no ROA 4 557202376441344538 2026-09-18
211.64.160.0/19 v4 no ROA 4 557202376441344538 2026-09-18
211.64.192.0/20 v4 no ROA 4 557202376441344538 2026-09-18
211.64.208.0/20 v4 no ROA 4 557202376441344538 2026-09-18
211.64.232.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.64.235.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.64.240.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.0.0/16 v4 no ROA 43 244824538 2026-09-18
211.65.0.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.16.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.24.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.32.0/19 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.38.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.40.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.64.0/19 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.96.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.112.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.114.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.115.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.116.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.120.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.128.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.160.0/19 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.192.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.195.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.196.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.200.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.201.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.205.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.208.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.210.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.65.224.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.232.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.240.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
211.65.247.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
211.66.0.0/16 v4 no ROA 44 244824538 2026-09-18
211.66.0.0/20 v4 no ROA 44 244824538 2026-09-18
211.66.16.0/20 v4 no ROA 44 244824538 2026-09-18
211.66.72.0/23 v4 no ROA 44 237644538 2026-09-18
211.66.82.0/24 v4 RPKI valid 44 237644538 2026-09-18
211.66.86.0/23 v4 no ROA 44 244824538 2026-09-18
211.66.96.0/20 v4 no ROA 44 237644538 2026-09-18
211.66.112.0/20 v4 no ROA 44 237644538 2026-09-18
211.66.128.0/20 v4 no ROA 44 237644538 2026-09-18
211.66.152.0/21 v4 no ROA 44 237644538 2026-09-18
211.66.160.0/20 v4 no ROA 44 237644538 2026-09-18
211.66.186.0/24 v4 RPKI valid 44 237644538 2026-09-18
211.66.188.0/24 v4 RPKI valid 44 237644538 2026-09-18
211.66.192.0/21 v4 no ROA 44 237644538 2026-09-18
211.66.206.0/23 v4 no ROA 44 237644538 2026-09-18
211.66.208.0/22 v4 no ROA 44 237644538 2026-09-18
211.66.216.0/21 v4 no ROA 44 237644538 2026-09-18
211.66.240.0/21 v4 no ROA 4 557202376441344538 2026-09-18
211.66.248.0/21 v4 no ROA 44 237644538 2026-09-18
211.67.0.0/16 v4 no ROA 44 244824538 2026-09-18
211.67.0.0/20 v4 no ROA 44 237644538 2026-09-18
211.67.8.0/21 v4 no ROA 44 237644538 2026-09-18
211.67.16.0/20 v4 no ROA 4 557202376441344538 2026-09-18
211.67.32.0/20 v4 no ROA 44 237644538 2026-09-18
211.67.41.0/24 v4 RPKI valid 44 237644538 2026-09-18
211.67.48.0/20 v4 no ROA 44 237644538 2026-09-18
211.67.49.0/24 v4 RPKI valid 44 237644538 2026-09-18
211.67.64.0/20 v4 no ROA 44 237644538 2026-09-18
211.67.80.0/21 v4 no ROA 4 557202376441344538 2026-09-18
211.67.88.0/21 v4 no ROA 4 557202376441344538 2026-09-18
211.67.96.0/20 v4 no ROA 44 237644538 2026-09-18
211.67.102.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.67.112.0/20 v4 no ROA 4 557202376441344538 2026-09-18
211.67.112.0/24 v4 no ROA 44 237644538 2026-10-15
211.67.124.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.67.128.0/20 v4 no ROA 4 557202376441344538 2026-09-18
211.67.144.0/20 v4 no ROA 4 557202376441344538 2026-09-18
211.67.160.0/21 v4 no ROA 44 237644538 2026-09-18
211.67.163.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.67.166.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
211.67.168.0/21 v4 no ROA 4 557202376441344538 2026-09-18
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