AS133555 DOORPOST Limited 🇨🇳 CN
Announcing 8 prefixes, seen at the RIS collectors.
IPv4 prefixes
1
256 (1 × /24)
IPv6 prefixes
7
97 × /48
Upstreams
2
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS133555
- Name
- DOORPOST Limited
- Organisation
- Cortex Network Next-generation Research Centre
- Country
- 🇨🇳 CN
- RIR
- APNIC
- Allocated
- 2020-08-06
- Network type
- Educational/Research
- Scope
- Global
- Peering policy
- Open
- Website
- https://cnnrc.com
- PeeringDB
- net/13792
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Whois
Fetched from whois.apnic.net
as-block: AS133120 - AS133631 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: 2013-09-11T23:52:15Z 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: AS133555 as-name: DOORPOST-AS-AP descr: DOORPOST Limited descr: No. 10, Jianling Street, Jianchang County, Liaoning Province country: CN org: ORG-DL38-AP sponsoring-org: ORG-NDIT1-AP admin-c: CZ2080-AP tech-c: CZ2080-AP abuse-c: AD916-AP mnt-by: APNIC-HM mnt-lower: MAINT-NBDHM-CN mnt-routes: MAINT-NBDHM-CN mnt-irt: IRT-DOORPOST-CN last-modified: 2024-07-22T23:30:56Z source: APNIC irt: IRT-DOORPOST-CN address: No. 10, Jianling Street, Jianchang County, Liaoning Province e-mail: noc@zhangcheng.org abuse-mailbox: abuse@zhangcheng.org admin-c: CZ2080-AP tech-c: CZ2080-AP auth: # Filtered remarks: abuse@zhangcheng.org was validated on 2026-06-23 remarks: noc@zhangcheng.org was validated on 2026-06-27 mnt-by: MAINT-NBDHM-CN last-modified: 2026-06-27T03:13:17Z source: APNIC organisation: ORG-DL38-AP org-name: DOORPOST Limited org-type: OTHER address: No. 10, Jianling Street, Jianchang County, Liaoning Province country: CN phone: +86-13700004291 e-mail: i@zhangcheng.org admin-c: CZ2080-AP tech-c: CZ2080-AP mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2023-09-05T04:16:38Z source: APNIC role: ABUSE DOORPOSTCN country: ZZ address: No. 10, Jianling Street, Jianchang County, Liaoning Province phone: +000000000 e-mail: noc@zhangcheng.org admin-c: CZ2080-AP tech-c: CZ2080-AP nic-hdl: AD916-AP remarks: Generated from irt object IRT-DOORPOST-CN remarks: abuse@zhangcheng.org was validated on 2026-06-23 remarks: noc@zhangcheng.org was validated on 2026-06-27 abuse-mailbox: abuse@zhangcheng.org mnt-by: APNIC-ABUSE last-modified: 2026-06-27T04:57:29Z source: APNIC person: Cheng Zhang address: No. 10, Jianling Street, Jianchang County, Liaoning Province country: CN phone: +86-13700004291 e-mail: i@zhangcheng.org nic-hdl: CZ2080-AP mnt-by: MAINT-NBDHM-CN last-modified: 2020-08-06T14:24:51Z source: APNIC