Hostname
cal.kostech.net
Last fetched
cal.kostech.net resolves to 8 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in US.
Nutrition Label
Resolution chain
cal.kostech.net resolves to 8 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 13.33.67.49 | 13.33.64.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 13.33.67.54 | 13.33.64.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 13.33.67.76 | 13.33.64.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 13.33.67.79 | 13.33.64.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 18.244.164.45 | 18.244.164.0/23 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
| 18.244.164.61 | 18.244.164.0/23 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
| 18.244.164.84 | 18.244.164.0/23 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
| 18.244.164.96 | 18.244.164.0/23 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
WHOIS identity
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Subdomains
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Web-graph footprint
Distinct hostnames that link to or from cal.kostech.net in the public web crawl.
Sample inbound links
Threat posture
History
Mail and authentication
SPF policy
1 SPF mechanism authorising senders for cal.kostech.net.
| Mechanism | Target |
|---|---|
| SPF_IP | 52.79.92.223/32 |
Related pages
Pivot deeper into the graph from cal.kostech.net.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "cal.kostech.net"})-[: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.