Hostname

5two3.co.jp

Last fetched Sat, 30 May 2026 05:18:54 GMT

5two3.co.jp resolves to 4 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in JP.

Nutrition Label

Resolution chain

5two3.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
3.166.244.101	3.166.240.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
3.166.244.118	3.166.240.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
3.166.244.12	3.166.240.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
3.166.244.58	3.166.240.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	JP

WHOIS identity

Registrar: —
Organization: 5two3 stage
Contact emails: —

Subdomains

1 observed subdomain of 5two3.co.jp.

Subdomain
mail.5two3.co.jp

Web-graph footprint

Distinct hostnames that link to or from 5two3.co.jp in the public web crawl.

15 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail4.makeshop.jp

SPF policy

1 SPF mechanism authorising senders for 5two3.co.jp.

Mechanism	Target
SPF_INCLUDE	spf.makeshop.jp

Pivot deeper into the graph from 5two3.co.jp.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "5two3.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.