AS24348 CNGI-BJ-IX2-AS-AP - CERNET2 IX at Tsinghua University

๐Ÿ‡จ๐Ÿ‡ณ

Org handle: A91E5D61

CERNET2 IX at Tsinghua University

APNICallocated
Announced Prefixes (BGP)
274total
170 IPv4104 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)1.6M
IPv6 Addresses
Allocated (RIR)7.9ร—10ยฒโธ
Announced (BGP)4.7ร—10ยฒโน
Prefix Limit (IPv4)
500
Prefix Limit (IPv6)
500
Status
allocated
Allocated
2005-03-03

Routing hygiene

Score 55/100 ยท High risk
RPKI ROA coverage
12.8%
41 prefixes RPKI invalid
IRR route objects
0%
272 prefixes registered for another origin
Hijack signals
1
0 announced against others' ROAs, 1 own announced by others
Upstreams
2
diversity 21/100
  • 87% of announced prefixes (238 of 273) have no valid ROA, 41 of them RPKI invalid
  • 100% of announced prefixes (273 of 273) have no IRR route object for this ASN
  • Routes concentrated on one upstream (88% of routes)

Based on 273 announced prefixes, updated daily (2026-10-25). How the score works ยท RPKI explained

Announced Prefixes

(BGP)274
|
Prefix
RPKI
IRR
Last Seen
Invalid-2026-10-26
Invalid-2026-10-26
Invalid-2026-10-26
Invalid-2026-10-26
Invalid-2026-10-26
No ROA-2026-10-26
No ROA-2026-10-26
No ROA-2026-10-26
No ROA-2026-10-26
No ROA-2026-10-26
1-10 of 274
1 / 28

Allocated Prefixes

(RIR)1
Prefix
Country
RIR
Status
2403:3140::/32๐Ÿ‡จ๐Ÿ‡ณ CNAPNICallocated

All 274 announced prefixes of AS24348 โ†’

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS24348 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS4538China Education And Research Network Center399
  • AS23910China Next Generation Internet CERNET254

Downstreams (5)

Networks whose own prefixes AS24348 passes on: usually its customers.

  • AS131490CERNET Corporation10
  • AS45576Tsinghua University6
  • AS24302CRIS CERNET3
  • AS9405Test Platform Service Center1
  • AS24310Net Glyph Data Center1
ASPA
No ASPA
Abuse Contact
+86-10-62784301
External Links

Learn more

GEThttps://api.ipctl.io/v1/asn/24348

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/24348" | jq