AS4837 China Unicom Backbone 🇨🇳 CN
CNCGROUP IP network of ShangHai IDC. Announcing 2,172 prefixes, seen at the RIS collectors.
IPv4 prefixes
1,520
59,345,664 (231,819 × /24)
IPv6 prefixes
652
402 × /32
Upstreams
15
transit providers observed
Peers
23
settlement-free adjacencies
Downstreams
87
transit customers observed
Customer cone
23,379
ASes reachable through it
Registry and operator data
- AS number
- AS4837
- Name
- China Unicom Backbone
- Organisation
- China Unicom
- Country
- 🇨🇳 CN
- RIR
- APNIC
- Allocated
- 2001-09-17
- Network type
- NSP
- Traffic levels
- 10-20Tbps
- Scope
- Regional
- Peering policy
- Selective
- IRR as-set
- AS4837:AS-CNCGROUP
- Website
- https://www.chinaunicom.cn/
- PeeringDB
- net/730
- Exchanges
- 3
- Facilities
- 10
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Whois
Fetched from whois.apnic.net
as-block: AS4608 - AS4865 descr: APNIC ASN block remarks: These AS numbers are further assigned by APNIC remarks: to APNIC members and end-users in the APNIC region admin-c: HM20-AP tech-c: HM20-AP mnt-by: APNIC-HM mnt-lower: APNIC-HM last-modified: 2019-05-20T03:52:26Z source: APNIC role: APNIC Hostmaster address: PO Box 3646 address: South Brisbane address: QLD 4101 country: AU phone: +61 7 3858 3100 fax-no: +61 7 3858 3199 e-mail: helpdesk@apnic.net admin-c: AMS11-AP tech-c: AH256-AP nic-hdl: HM20-AP remarks: Administrator for APNIC notify: hostmaster@apnic.net mnt-by: MAINT-APNIC-AP last-modified: 2026-08-26T00:40:00Z source: APNIC aut-num: AS4837 as-name: CHINA169-Backbone descr: CHINA UNICOM China169 Backbone country: CN member-of: AS4837:AS-CNCGROUP import: from AS701 action pref=100; accept ANY import: from AS1239 action pref=100; accept ANY import: from AS4808 action pref=100; accept AS4808 import: from AS4814 action pref=100; accept AS4814 import: from AS17816 action pref=100; accept AS17816 import: from AS-ANY accept ANY export: to AS701 announce AS4837 export: to AS1239 announce AS4837 export: to AS4808 announce AS4837 export: to AS4814 announce AS4837 export: to AS17816 announce AS4837 export: to AS-ANY announce AS4837:AS-CNCGROUP admin-c: CH444-AP tech-c: CH444-AP abuse-c: AC1718-AP mnt-routes: MAINT-CNCGROUP-RR mnt-by: MAINT-CNCGROUP-RR mnt-irt: IRT-CU-CN last-modified: 2024-02-06T04:05:55Z source: APNIC irt: IRT-CU-CN address: No.21,Financial Street address: Beijing,100033 address: P.R.China e-mail: hqs-ipabuse@chinaunicom.cn abuse-mailbox: hqs-ipabuse@chinaunicom.cn admin-c: CH1302-AP tech-c: CH1302-AP auth: # Filtered remarks: hqs-ipabuse@chinaunicom.cn was validated on 2026-08-19 mnt-by: MAINT-CNCGROUP last-modified: 2026-08-19T00:57:22Z source: APNIC role: ABUSE CUCN country: ZZ address: No.21,Financial Street address: Beijing,100033 address: P.R.China phone: +000000000 e-mail: hqs-ipabuse@chinaunicom.cn admin-c: CH1302-AP tech-c: CH1302-AP nic-hdl: AC1718-AP remarks: Generated from irt object IRT-CU-CN remarks: hqs-ipabuse@chinaunicom.cn was validated on 2026-08-19 abuse-mailbox: hqs-ipabuse@chinaunicom.cn mnt-by: APNIC-ABUSE last-modified: 2026-08-20T03:22:23Z source: APNIC person: CNCGroup Hostmaster nic-hdl: CH444-AP e-mail: hqs-ipabuse@chinaunicom.cn address: No.21,Financial Street address: Beijing,100033,P.R.China phone: +86-10-66259764 fax-no: +86-10-66259764 country: CN mnt-by: MAINT-CN-CUCGROUP last-modified: 2017-09-05T06:36:14Z source: APNIC