Hostname

create21.co.jp

Last fetched Tue, 11 Aug 2026 16:26:03 GMT

create21.co.jp resolves to 4 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in JP.

Nutrition Label

Resolution chain

create21.co.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
13.249.165.15	13.249.165.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
13.249.165.16	13.249.165.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
13.249.165.23	13.249.165.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
13.249.165.97	13.249.165.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	JP

WHOIS identity

Registrar: —
Organization: create21
Contact emails: —

Subdomains

1 observed subdomain of create21.co.jp.

Subdomain
www.create21.co.jp

Web-graph footprint

Distinct hostnames that link to or from create21.co.jp in the public web crawl.

6 sites linked to from this hostname.

Sample inbound links

tycho.tokyo

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mx01.muumuu-mail.com

SPF policy

1 SPF mechanism authorising senders for create21.co.jp.

Mechanism	Target
SPF_INCLUDE	_spf.muumuu-mail.com

Pivot deeper into the graph from create21.co.jp.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "create21.co.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.