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Hostname

a4si.net

Last fetched

a4si.net has no current public IPv4 resolution in WhisperGraph; WHOIS lists iana:48 as the registrar.

Nutrition Label

WHISPER CANON · a4si.netRouting diversity0.0/10Peering density0.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint3.2/10canon.whisper.security/host/a4si.net

Resolution chain

a4si.net has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.

WHOIS identity

Registrar
iana:48
Organization
robert clausing
Contact emails

Subdomains

3 observed subdomains of a4si.net.

Subdomain
autodiscover.a4si.net
mail.a4si.net
www.a4si.net

Web-graph footprint

Distinct hostnames that link to or from a4si.net in the public web crawl.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

7 SPF mechanisms authorising senders for a4si.net.

MechanismTarget
SPF_INCLUDEspf.protection.outlook.com
SPF_INCLUDEspf.us.mailmarshal.cloud
SPF_IP103.25.107.28
SPF_IP103.25.107.32
SPF_IP160.187.93.35
SPF_IP160.187.93.36
SPF_IP52.165.84.18

Related pages

Pivot deeper into the graph from a4si.net.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "a4si.net"})-[: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.