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Hostname

caller.nu

Last fetched

caller.nu resolves to 1 IPv4 address operated by AS48854 in DK.

Nutrition Label

WHISPER CANON · caller.nuRouting diversity1.5/10Peering density3.6/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint4.6/10canon.whisper.security/host/caller.nu

Resolution chain

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

IPPrefixASNOperatorCountry
185.20.205.21185.20.204.0/22AS48854—DK

WHOIS identity

No WHOIS records are currently associated with caller.nu in WhisperGraph.

Subdomains

1 observed subdomain of caller.nu.

Subdomain
www.caller.nu

Web-graph footprint

Distinct hostnames that link to or from caller.nu in the public web crawl.

14 sites link to this hostname.

192 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for caller.nu.

MechanismTarget
SPF_INCLUDEspf.simply.com

Related pages

Pivot deeper into the graph from caller.nu.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "caller.nu"})-[: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.