Hostname
c21circle.com
Last fetched
c21circle.com resolves to 3 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in US.
Nutrition Label
Resolution chain
c21circle.com resolves to 3 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 35.167.72.198 | 35.160.0.0/13 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 44.225.49.198 | 44.224.0.0/11 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 52.37.236.9 | 52.36.0.0/14 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
WHOIS identity
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Subdomains
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Web-graph footprint
Distinct hostnames that link to or from c21circle.com in the public web crawl.
Sample inbound links
Threat posture
History
Mail and authentication
SPF policy
5 SPF mechanisms authorising senders for c21circle.com.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | activepipe.net |
| SPF_INCLUDE | mail.zendesk.com |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 198.37.147.104/32 |
| SPF_IP | 50.31.40.129/32 |
Related pages
Pivot deeper into the graph from c21circle.com.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "c21circle.com"})-[: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.