bgpto.me
IP PREFIX

121.192.137.0/24

Originated by AS4538 · ERX-CERNET-BKB - China Education and Research Network Center

AnnouncedCNAPNIC
www.edu.cn/
Website preview from public registry data for AS4538
Registry websiteOpen site ↗

RPKI & ROA validation

CURRENT STATE

valid

No matching VRP was returned by RIPE Routinator.

ROA prefixOriginMax lengthStatus
121.192.137.0/24AS4538/24valid

Routing registry consistency

121.192.0.0/15AS4538 — ERX-CERNET-BKB - China Education and Research Network CenterSeen in BGPLEVEL3, RADB
121.192.137.0/24AS4538 — ERX-CERNET-BKB - China Education and Research Network CenterSeen in BGPNTTCOM, RADB
121.192.0.0/14AS4538 — ERX-CERNET-BKB - China Education and Research Network CenterSeen in BGPRADB
121.192.0.0/16AS4538 — ERX-CERNET-BKB - China Education and Research Network CenterSeen in BGPAPNIC, RADB

Recent RPKI history

DateCovered prefixVRPsMax length
22/09/2026121.192.137.0/241/24
21/09/2026121.192.137.0/241/24
20/09/2026121.192.137.0/241/24
19/09/2026121.192.137.0/241/24
18/09/2026121.192.137.0/241/24
17/09/2026121.192.137.0/241/24
16/09/2026121.192.137.0/241/24
15/09/2026121.192.137.0/241/24
14/09/2026121.192.137.0/241/24
13/09/2026121.192.137.0/241/24
12/09/2026121.192.137.0/241/24
11/09/2026121.192.137.0/241/24