AS24364 CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong University
Announced Prefixes (BGP)
270total
198 IPv472 IPv6
IPv4 Addresses
Allocated (RIR)1,024
Announced (BGP)1.6M
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)2.3×10²⁹
Prefix Limit (IPv4)
500
Prefix Limit (IPv6)
500
Allocated
-
Routing hygiene
Score 88/100 · High riskRPKI ROA coverage
25.6%
55 prefixes RPKI invalid
IRR route objects
0.4%
269 prefixes registered for another origin
Hijack signals
59
55 announced against others' ROAs, 4 own announced by others
Upstreams
2
diversity 40/100
- Announces 55 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
- 74% of announced prefixes (201 of 270) have no valid ROA, 55 of them RPKI invalid
- 100% of announced prefixes (269 of 270) have no IRR route object for this ASN
- 12 prefixes registered in IRR route objects for another active network and not authorized by a ROA
Based on 270 announced prefixes, updated daily (2026-10-19). How the score works · RPKI explained
Announced Prefixes
(BGP)270|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | - | 2026-10-26 | |
49.52.0.0/19MOAS | No ROA | - | 2026-10-26 |
49.52.32.0/20MOAS | No ROA | - | 2026-10-26 |
49.52.48.0/24MOAS | Invalid | - | 2026-10-26 |
58.196.128.0/19MOAS | No ROA | - | 2026-10-26 |
58.196.128.0/20MOAS | No ROA | - | 2026-10-26 |
58.196.144.0/20MOAS | No ROA | - | 2026-10-26 |
58.196.160.0/20MOAS | No ROA | - | 2026-10-26 |
58.196.160.0/21MOAS | No ROA | - | 2026-10-26 |
58.196.168.0/21MOAS | No ROA | - | 2026-10-26 |
1-10 of 270
1 / 27
Allocated Prefixes
(RIR)2Prefix | Country | RIR | Status |
|---|---|---|---|
| 43.248.228.0/22 | 🇨🇳 CN | APNIC | allocated |
| 2403:d400::/32 | 🇨🇳 CN | APNIC | allocated |
All 270 announced prefixes of AS24364 →
BGP Neighbours
(seen in AS paths)Upstreams (2)
Networks AS24364 hands its own prefixes to: transit providers, or peers at an exchange.
ASPA
No ASPA
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS24364 should publish an ASPA object
- IPv4 transfer marketTransfers published by all five RIRs
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/24364Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/24364" | jq