AS24357
CERNET2 IX at South China University of Technology
AS24357 is CERNET2 IX at South China University of Technology (cernet.edu.cn). It announces 135,936 IPv4 addresses in 13 prefixes, and 201 IPv6 prefixes.
China· APNIC· allocated 2005-03-03· education
135,936
IPv4 addresses announced
13
IPv4 prefixes
201
IPv6 prefixes
93.90%
of its routes RPKI-valid
135,936
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- China135,936 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CNGI-GZ-IX-AS-AP
- name
- CERNET2 IX at South China University of Technology
- country
- CN
- source
- apnic
- updated
- 2020-09-03
- descr
- CERNET2 IX at South China University of Technology / CERNET Center / Beijing 100084, China
- remarks
- Multihome member of CERNET
- maintainer
- APNIC-HM
- maintainer email
- helpdesk@apnic.net
- abuse
- AC1685-AP
- abuse name
- ABUSE CERNETAP
- abuse email
- abuse@cernet.edu.cn
- abuse phone
- +86-10-62784301
- abuse kind
- role
- admin
- CER-AP
- admin name
- CERNET Helpdesk
- admin email
- helpdesk@cernet.edu.cn
- admin phone
- +86-10-6278-5933
- admin kind
- role
- admin country
- CN
- tech
- CER-AP
- tech name
- CERNET Helpdesk
- tech email
- helpdesk@cernet.edu.cn
- tech phone
- +86-10-6278-5933
- tech kind
- role
- tech country
- CN
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- 0.00%
- None here
- None here
- None here
- None here
- None here
- Hosting IP2560.19%
- None here
- None here
- None here
- SSH IP120.01%
- None here
- DNS Resolver IP2,0511.51%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 125.216.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 125.217.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 125.218.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 202.116.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 211.66.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 219.222.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 219.223.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 222.16.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 222.17.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 222.200.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 222.201.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 222.202.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 222.203.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:250:23f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3000::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3001::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3002::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3003::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3004::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3005::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3006::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3007::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3008::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3009::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:300a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:300b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:300c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:300d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:300e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:300f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3010::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3012::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3013::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3015::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3016::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3017::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3018::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3019::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:301a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:301c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:301d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:301e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:301f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3020::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3021::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3022::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3023::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3024::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3025::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3026::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3027::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3028::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3029::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:302a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:302b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:302c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:302d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:302e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:302f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3030::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3031::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3032::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3033::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3034::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3035::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3036::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3037::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3038::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3039::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:303a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:303b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:303c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:303d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:303e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:303f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3040::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3041::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3042::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3043::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3044::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3045::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3046::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3047::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3048::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3049::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:304a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:304b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:304c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:304d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:304e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:304f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3050::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3051::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3052::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3053::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3054::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3055::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3056::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3057::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3058::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:305a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:305b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:305c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:305d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:305e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:305f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3060::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3061::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3062::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3063::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3064::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3065::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3066::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3067::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3068::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3069::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:306a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:306b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:306c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:306d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:306e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:306f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3070::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3071::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3072::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3073::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3074::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3075::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3076::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3077::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3078::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3079::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:307a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:307b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:307c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:307d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:307e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:307f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3080::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3081::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3082::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3084::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3085::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3086::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3087::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3088::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:3089::/48 | China | valid | 3 | 2026-10-02 |
| 2001:250:308b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:a2::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2000::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2001::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2002::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2003::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2004::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2005::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2006::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2007::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2008::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:200a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:200b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:200c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:200d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:200e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:200f::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2010::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2011::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2012::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2013::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2014::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2015::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2016::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2017::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2018::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2019::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:201a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:201b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:201c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:201e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2020::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2021::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2022::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2024::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2025::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2026::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2027::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2028::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2029::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:202a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:202b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:202c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:202d::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:202e::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2030::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2031::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2032::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2033::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2034::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2035::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2036::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2037::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2038::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:2039::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:203a::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:203b::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:203c::/48 | China | valid | 3 | 2026-10-02 |
| 2001:da8:203d::/48 | China | valid | 3 | 2026-10-02 |
| 2400:6000::/32 | China | not found | 20 | 2026-10-02 |
| 240c:cd01:cd01::/48 | China | valid | 3 | 2026-10-02 |
| 240c:cd05:cd05::/48 | China | valid | 3 | 2026-10-02 |
| 240c:cd15:1000::/48 | China | valid | 3 | 2026-10-02 |
| 240c:cd22::/32 | China | valid | 3 | 2026-10-02 |
| 240c:cd22:cd22::/48 | China | valid | 3 | 2026-10-02 |
| 240c:cd45::/32 | China | valid | 3 | 2026-10-02 |
| 240c:cda1::/32 | China | valid | 3 | 2026-10-02 |
00 · Evaluate
Test the real build first.
An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.
01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell — priced by scope, not by seat.
Annual terms, a named contact, and flexible payment terms — monthly, quarterly or yearly.