Hostname

jeffko.ch

Last fetched Thu, 21 May 2026 19:00:19 GMT

jeffko.ch resolves to 16 IPv4 addresses operated by AMAZON-AES - Amazon.com, Inc. in US.

Nutrition Label

Resolution chain

jeffko.ch resolves to 16 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
16.15.177.232	16.15.176.0/21	AS14618	AMAZON-AES - Amazon.com, Inc.	US
16.15.187.149	16.15.184.0/21	AS14618	AMAZON-AES - Amazon.com, Inc.	US
16.15.187.62	16.15.184.0/21	AS14618	AMAZON-AES - Amazon.com, Inc.	US
16.15.207.74	16.15.200.0/21	AS14618	AMAZON-AES - Amazon.com, Inc.	US
16.182.36.141	16.182.32.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	US
16.182.36.37	16.182.32.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	US
3.5.22.166	3.5.22.0/23	AS14618	AMAZON-AES - Amazon.com, Inc.	US
52.216.48.157	52.216.48.0/20	AS16509	AMAZON-02 - Amazon.com, Inc.	US
52.217.121.29	52.217.112.0/20	AS16509	AMAZON-02 - Amazon.com, Inc.	US
52.217.162.101	52.217.160.0/19	AS16509	AMAZON-02 - Amazon.com, Inc.	US
52.217.173.197	52.217.160.0/19	AS16509	AMAZON-02 - Amazon.com, Inc.	US
52.217.228.229	52.217.224.0/19	AS16509	AMAZON-02 - Amazon.com, Inc.	US
52.217.65.75	52.217.65.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	US
54.231.171.93	54.231.160.0/19	AS16509	AMAZON-02 - Amazon.com, Inc.	US
54.231.192.5	54.231.192.0/19	AS16509	AMAZON-02 - Amazon.com, Inc.	US
54.231.194.181	54.231.192.0/19	AS16509	AMAZON-02 - Amazon.com, Inc.	US

WHOIS identity

Registrar: —
Organization: jeffrey koch
Contact emails: —

Threat posture

History

Mail and authentication

MX records

inbound-smtp.us-east-1.amazonaws.com

SPF policy

1 SPF mechanism authorising senders for jeffko.ch.

Mechanism	Target
SPF_INCLUDE	amazonses.com

Pivot deeper into the graph from jeffko.ch.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "jeffko.ch"})-[: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 20

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