Hostname

j-note.jp

Last fetched Fri, 07 Aug 2026 10:25:18 GMT

j-note.jp resolves to 4 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in JP.

Nutrition Label

Resolution chain

j-note.jp resolves to 4 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
13.158.221.245	13.158.0.0/15	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
18.178.205.145	18.178.0.0/16	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
52.194.164.23	52.194.0.0/15	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
54.65.195.133	54.64.0.0/15	AS16509	AMAZON-02 - Amazon.com, Inc.	JP

WHOIS identity

Registrar

—

Organization

writeup

Contact emails

nic-staff@sakura.ad.jp

Web-graph footprint

Distinct hostnames that link to or from j-note.jp in the public web crawl.

23 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 j-note.jp.

Mechanism	Target
SPF_INCLUDE	mailgun.org

Pivot deeper into the graph from j-note.jp.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "j-note.jp"})-[: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.