Prefixes
1,514 · 652
IPv4 · IPv6
Network
AS4837
CarrierChina Unicom Backbone
China Unicom Backbone announces 1,514 IPv4 prefixes (57.7M addresses) and 652 IPv6 prefixes from China. 97% of them are covered by valid RPKI records.
Address space
57.7M
IPv4 addresses · 26.4M IPv6 /48s
RPKI
97% valid5 invalid · 57 without a record
Peering
Selective
3 exchanges · 10 facilities
Where it is
Details
Network
- Name
- China Unicom Backbone
- Holder
- CNCGroup Hostmaster
- Type
- NSP
- Country
- China
- Registry
- APNIC
- Registered
- Sep 4, 200818 years ago
- Website
- chinaunicom.cn
- Traffic
- 10-20Tbps
- UsersCloudflare Radar's estimate of people who reach the internet through this network.
- About 122.1M
- Abuse contact
- hqs-ipabuse@chinaunicom.cn
Connectivity
Cloudflare Radar- UpstreamsNetworks this one buys transit from.
- Cogent CommunicationsVerizonArelionNTT Global IP NetworkGTT CommunicationsDeutsche TelekomLumen AS3356Orange+10 more
- PeersNetworks it exchanges traffic with directly, without paying either way.
- 88
- CustomersNetworks that buy transit from it.
- 63
- AS-SETThe routing registry object that lists this network's customers, used to build route filters.
- AS4837:AS-CNCGROUP
Routing security
- ASPAAn RPKI record listing the only networks allowed to be its upstream providers, so routers can reject leaked or forged paths.
- Not published
- RPKI coverageShare of its announcements that a signed record (ROA) authorizes.
- 2,104 of 2,166 valid
- IncidentsPossible BGP hijacks (high-confidence detections) and route leaks involving this network in the last 30 days, from Cloudflare Radar.
- 1 hijack of its prefixes
Largest prefixes
IPv4
1,514- 27.192.0.0/11RPKI valid
- 39.64.0.0/11RPKI valid
- 112.224.0.0/11RPKI valid
- 42.224.0.0/12RPKI valid
- 101.16.0.0/12RPKI valid
- 110.240.0.0/12RPKI valid
- 113.224.0.0/12RPKI valid
- 115.48.0.0/12RPKI valid
- 119.176.0.0/12RPKI valid
- 120.0.0.0/12RPKI valid
- 175.160.0.0/12RPKI valid
- 182.112.0.0/12RPKI valid
- 1.24.0.0/13RPKI valid
- 1.56.0.0/13RPKI valid
- 27.8.0.0/13RPKI valid
- 42.176.0.0/13RPKI valid
- 60.0.0.0/13RPKI valid
- 60.16.0.0/13RPKI valid
- 60.208.0.0/13RPKI valid
- 101.64.0.0/13RPKI valid
- 111.160.0.0/13RPKI valid
- 112.80.0.0/13RPKI valid
- 113.0.0.0/13RPKI valid
- 117.8.0.0/13RPKI valid
IPv6
652- 2408:8244::/30RPKI valid
- 2408:8344::/30RPKI valid
- 2408:8444::/30No ROA
- 2408:8644::/30RPKI valid
- 2408:8744::/30RPKI valid
- 2402:18a0::/32RPKI invalid
- 2408:802c::/32RPKI valid
- 2408:803e::/32RPKI valid
- 2408:8056::/32RPKI valid
- 2408:8210::/32RPKI valid
- 2408:8211::/32RPKI valid
- 2408:8212::/32RPKI valid
Internet exchanges
- AMS-IX
Amsterdam100 Gbps - DE-CIX Frankfurt
Frankfurt100 Gbps - LINX LON1
London10 Gbps