Hostname

cas.cn

Last fetched Thu, 21 May 2026 20:00:04 GMT

cas.cn resolves to 1 IPv4 address operated by CSTNET-AS-AP Computer Network Information Center of Chinese Academy of Sciences CNIC-CAS in CN. WHOIS lists registrar:北京国科云计算技术有限公司（原北京中科三方网络技术有限公司） as the registrar.

Nutrition Label

Resolution chain

cas.cn resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
159.226.242.61	159.226.242.0/23	AS7497	CSTNET-AS-AP Computer Network Information Center of Chinese Academy of Sciences CNIC-CAS	CN
159.226.242.61	159.226.242.0/23	AS7497	CSTNET-AS-AP Computer Network Information Center of Chinese Academy of Sciences CNIC-CAS	CN

WHOIS identity

Registrar

registrar:北京国科云计算技术有限公司（原北京中科三方网络技术有限公司）

Organization

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Contact emails

Subdomains

228 observed subdomains of cas.cn.

Subdomain
60yq.cas.cn
bulletin.cas.cn
bsc.cas.cn
bpfapp.cas.cn
bpf.cas.cn
bmrdp.cas.cn
bjb.cas.cn
biols.cas.cn
binn.cas.cn
big.cas.cn
bic.cas.cn
bfse.cas.cn
bdp.cas.cn
bcas.cas.cn
app.cas.cn
apm.cas.cn
api.cas.cn
aoe.cas.cn
amss.cas.cn
aircas.cas.cn
aiofm.cas.cn
admin.cas.cn
ad.cas.cn
acl.cas.cn
ab.cas.cn

Showing 25 of 228. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from cas.cn in the public web crawl.

3,527 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mx.cstnet.cn

SPF policy

1 SPF mechanism authorising senders for cas.cn.

Mechanism	Target
SPF_INCLUDE	spf.mail.cstnet.cn

Pivot deeper into the graph from cas.cn.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "cas.cn"})-[:RESOLVES_TO]->(ip:IPV4)
      -[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)
      -[:ROUTES]->(asn:ASN)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, asn.name AS asn, n.name AS operator
LIMIT 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.