IPv4 address

42.1.121.9

Last fetched Sun, 06 Sep 2026 20:28:20 GMT

42.1.121.9 is announced in 42.1.121.0/24 by MOBIFONE-AS-VN - MOBIFONE Corporation and geolocates to VN. 42.1.121.9 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: 42.1.121.0/24
Announcing network: MOBIFONE-AS-VN - MOBIFONE Corporation
RIR-registered prefix: 42.1.64.0/18
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.

Geographic detail

Country: VN
Dominant city of the prefix: Yen Hoa, VN

Threat-feed evidence

History

Pivot from 42.1.121.9 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: "42.1.121.9"})
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.