Hostname

jbca.co.jp

Last fetched Fri, 07 Aug 2026 08:49:25 GMT

jbca.co.jp resolves to 1 IPv4 address operated by AMAZON-02 - Amazon.com, Inc. in JP.

Nutrition Label

Resolution chain

jbca.co.jp 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
3.115.203.100	3.112.0.0/14	AS16509	AMAZON-02 - Amazon.com, Inc.	JP

WHOIS identity

Registrar: —
Organization: bussicom japan corporation
Contact emails: —

Subdomains

8 observed subdomains of jbca.co.jp.

Subdomain
inquiry.jbca.co.jp
jbcaapri.jbca.co.jp
mail.jbca.co.jp
system.jbca.co.jp
test-account.jbca.co.jp
test.jbca.co.jp
www.jbca.co.jp

Showing 7 of 8. View all subdomains →

Web-graph footprint

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

12 sites link to this hostname.

19 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 jbca.co.jp.

Mechanism	Target
SPF_INCLUDE	_spf.google.com

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

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "jbca.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.