Hostname

opho.jp

Last fetched Mon, 14 Sep 2026 17:25:59 GMT

opho.jp is a hostname indexed by WhisperGraph, the internet-infrastructure graph behind the Whisper Internet Directory. opho.jp is not listed on any threat feed indexed by WhisperGraph; reconciled level NONE.

Threat posture

0threat score (procedure-native scale)

NONE

No threats observed.

Threat feeds listing this: 0
Verdict coverage: known-clean

Nutrition Label

Resolution chain

No IPv4 resolution is recorded for opho.jp in WhisperGraph.

IPv6 resolution

No AAAA record for opho.jp is recorded in WhisperGraph.

WHOIS identity

Registrant organisation: osaka prefectural hospital organization
Contact emails: dns-admin@opho.jp, honbudmn@opho.jp, utagawam@mbox.pref.osaka.lg.jp

Subdomains

Subdomain
gh.opho.jp
lan.opho.jp
mx.opho.jp
mx2.opho.jp
ohwebgwr.opho.jp
ohwebgwr2.opho.jp
pmc.opho.jp
ra.opho.jp
wch.opho.jp
www.opho.jp

Showing 10 of 25. View all subdomains →

Web-graph footprint

Sampled `LINKS_TO` edges. The hyperlink layer is a pilot sample, not a web-scale crawl, so these are illustrative.

Mail and authentication

Nameservers

ns019-ctpfcafo4ssv1ath.c.d-53.info
ns019-ctpfcafo4ssv1ath.c.d-53.jp
ns019-ctpfcafo4ssv1ath.c.d-53.net
ns000.d-53.net

MX records

mx.opho.jp
mx2.opho.jp

SPF policy

ip: 218.251.77.128/28
ip: 58.138.158.16/28

Threat-feed evidence

History

Pivot from opho.jp into the addresses, networks and registries it depends on.

Cypher and MCP

Reproduce this hostname's resolution chain against graph.whisper.security:

MATCH (h:HOSTNAME {name: "opho.jp"})-[:RESOLVES_TO]->(ip:IPV4)
      -[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)-[:ROUTES]->(a:ASN)
OPTIONAL MATCH (a)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, a.name AS asn, n.name AS network
LIMIT 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.