Hostname
four.io
Last fetched
four.io resolves to 19 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in AU. WHOIS lists iana:146 as the registrar.
Nutrition Label
Resolution chain
four.io resolves to 19 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
WHOIS identity
- Registrar
- iana:146
- Organization
- domains by proxy,
- Contact emails
- —
Subdomains
54 observed subdomains of four.io.
Showing 22 of 54. View all subdomains →
Threat posture
History
Mail and authentication
MX records
SPF policy
12 SPF mechanisms authorising senders for four.io.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | _spf.google.com |
| SPF_INCLUDE | amazonses.com |
| SPF_IP | 103.9.60.181 |
| SPF_IP | 13.237.247.181 |
| SPF_IP | 23.23.219.81 |
| SPF_IP | 3.105.220.23 |
| SPF_IP | 52.62.150.194 |
| SPF_IP | 52.62.249.191 |
| SPF_IP | 52.62.38.86 |
| SPF_IP | 52.62.76.101 |
| SPF_IP | 52.64.66.85 |
| SPF_IP | 54.79.53.215 |
Related pages
Pivot deeper into the graph from four.io.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "four.io"})-[: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 20Or query Whisper from your own LLM workflow via the Whisper MCP server.