AS24357 CNGI-GZ-IX-AS-AP - CERNET2 IX at South China University of Technology
Announced Prefixes (BGP)
675total
474 IPv4201 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)2.0M
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)3.1×10²⁹
Prefix Limit (IPv4)
1,000
Prefix Limit (IPv6)
1,000
Allocated
-
Routing hygiene
Score 80/100 · High riskRPKI ROA coverage
30.1%
87 prefixes RPKI invalid
IRR route objects
0%
674 prefixes registered for another origin
Hijack signals
87
87 announced against others' ROAs, 0 own announced by others
Upstreams
2
diversity 44/100
- Announces 87 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
- 70% of announced prefixes (472 of 675) have no valid ROA, 87 of them RPKI invalid
- 100% of announced prefixes (675 of 675) have no IRR route object for this ASN
- 13 prefixes registered in IRR route objects for another active network and not authorized by a ROA
Based on 675 announced prefixes, updated daily (2026-10-16). How the score works · RPKI explained
Announced Prefixes
(BGP)675|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
58.194.8.0/23MOAS | No ROA | - | - |
58.194.24.0/21MOAS | No ROA | - | - |
58.200.66.0/24MOAS | Invalid | - | - |
58.200.79.0/24MOAS | Invalid | - | - |
58.200.108.0/24MOAS | Invalid | - | - |
110.64.0.0/20MOAS | No ROA | - | - |
110.64.16.0/21MOAS | No ROA | - | - |
110.64.24.0/24MOAS | Invalid | - | - |
110.64.30.0/23MOAS | No ROA | - | - |
110.64.32.0/21MOAS | No ROA | - | - |
1-10 of 675
1 / 68
Allocated Prefixes
(RIR)4Prefix | Country | RIR | Status |
|---|---|---|---|
| 2001:250:3001::/48 | 🇨🇳 CN | APNIC | assigned |
| 2001:250:3002::/48 | 🇨🇳 CN | APNIC | assigned |
| 2001:250:3003::/48 | 🇨🇳 CN | APNIC | assigned |
| 2400:6000::/32 | 🇨🇳 CN | APNIC | allocated |
All 675 announced prefixes of AS24357 →
BGP Neighbours
(seen in AS paths)Upstreams (2)
Networks AS24357 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (1)
Networks whose own prefixes AS24357 passes on: usually its customers.
- AS137721China Internet Network Information Center2
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 AS24357 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/24357Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/24357" | jq