Data as of Nov 6, 2026

203.83.56.0/21

No anonymizer space · no proxy exits in 30 days

Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) · space held by Chinese Academy of Forestry

Announcement

this exact prefix

No RPKI

Announced by

Type

Business

Risk

0 / 100 · Low

Recent change

New origin Sep 18, 2026

from AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)

Network & registry

Origin network

Name: Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
Type: Education
Registered: Apr 8, 1997
Domain: cnic.cn
Website: cnic.cn
Industry: Internet Service Provider (ISP)
Spamhaus ASN-DROP: not listed

IRR

Origin	Registry	Description	Maintainer	Modified
AS24420 not the origin	APNIC	Route originated from CSTNET's customers	MAINT-CN-CSTNET	May 21, 2009
AS24420 not the origin	RADB	PACNET (proxy-registered route object)	MAINT-AS4637	Nov 13, 2023

IRR inside

Prefix	Origin	Registry	Description	Maintainer	Modified
203.83.56.0/22	AS7497	RADB	CMI (Customer Route)	MAINT-AS58453	Nov 13, 2023
203.83.56.0/22	AS24420	RADB	PACNET (proxy-registered route object)	MAINT-AS4637	Nov 13, 2023
203.83.56.0/22	AS7497	NTTCOM	CMI IP Transit	MAINT-CMI-INT-HK	May 25, 2016
203.83.60.0/22	AS7497	RADB	CMI (Customer Route)	MAINT-AS58453	Nov 13, 2023
203.83.60.0/22	AS24420	RADB	PACNET (proxy-registered route object)	MAINT-AS4637	Nov 13, 2023
203.83.60.0/22	AS7497	NTTCOM	CMI IP Transit	MAINT-CMI-INT-HK	May 25, 2016