AS4837 CHINA UNICOM China169 Backbone
AS4837 (CHINA169-Backbone) is registered to CHINA UNICOM China169 Backbone in CN, through APNIC. It originates 2,132 prefixes in the global routing table.
Who holds AS4837
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
WHOIS recordAPNIC
% [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to 'AS4608 - AS4865' 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 % Information related to 'AS4837' % Abuse contact for 'AS4837' is 'hqs-ipabuse@chinaunicom.cn' 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 % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)
What AS4837 announces
Prefixes originated by AS4837 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
Show 1,364 more
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RPKI valid RPKI invalid no ROA covers it
Who AS4837 is reached through
The AS just before AS4837 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
Provider authorization
AS4837 publishes no ASPA of its own. 1 AS name it as a provider in theirs. Check a path.
The 1 ASes that name AS4837 as a provider
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| APNIC | CHINA169-Backbone | MAINT-CNCGROUP-RR |
Route objects with origin AS4837: LEVEL3 1,391 · APNIC 1,303 · RADB 892 · NTTCOM 618