Hostname

jtca.org

Last fetched Sun, 31 May 2026 04:43:33 GMT

jtca.org resolves to 1 IPv4 address operated by AS131965 in JP. WHOIS lists iana:1485 as the registrar.

Nutrition Label

Resolution chain

jtca.org 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
162.43.104.73	162.43.0.0/17	AS131965	—	JP

WHOIS identity

Registrar

iana:1485

Organization

nagahara hiroharu

Contact emails

hiro@nspl.co.jp

Subdomains

2 observed subdomains of jtca.org.

Subdomain
oldweb.jtca.org
www.jtca.org

Web-graph footprint

Distinct hostnames that link to or from jtca.org in the public web crawl.

152 sites link to this hostname.

210 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail1.maildepot.jp

SPF policy

2 SPF mechanisms authorising senders for jtca.org.

Mechanism	Target
SPF_IP	160.16.135.167
SPF_IP	2001:e42:102:1703:160:16:135:167

Pivot deeper into the graph from jtca.org.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "jtca.org"})-[: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.