IPv4 address

91.231.87.12

Last fetched Thu, 17 Sep 2026 01:03:52 GMT

91.231.87.12 is announced in 91.231.86.0/23 by UKRNAMES-AS - Ukrainian Internet Names Center LTD and geolocates to UA. 91.231.87.12 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: no-data

Nutrition Label

Attribution

Announced prefix: 91.231.86.0/23
Announcing network: UKRNAMES-AS - Ukrainian Internet Names Center LTD
RIR-registered prefix: 91.231.84.0/22
RPKI: valid

Anycast detection

This does not appear to be an anycast address on the three signals Canon evaluates: reverse DNS, announced-prefix width and the announcing network's peer count.

Reverse DNS

Geographic detail

City: Kharkiv, UA
Country: UA
Dominant city of the prefix: Kharkiv, UA

Threat-feed evidence

History

Pivot from 91.231.87.12 into the prefix, network and country that carry it.

Cypher and MCP

Reproduce this address's routing attribution against graph.whisper.security:

MATCH (ip:IPV4 {name: "91.231.87.12"})
OPTIONAL MATCH (ip)-[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)-[:ROUTES]->(a:ASN)
OPTIONAL MATCH (a)-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (ip)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN ap.name AS prefix, a.name AS asn, n.name AS network, c.name AS country

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