Hostname
a2sys.co
Last fetched
a2sys.co resolves to 2 IPv4 addresses operated by AS16276 in SG. WHOIS lists iana:303 as the registrar.
Nutrition Label
Resolution chain
a2sys.co resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 139.99.122.116 | 139.99.0.0/17 | AS16276 | — | SG |
| 188.40.167.68 | 188.40.0.0/16 | AS24940 | — | DE |
WHOIS identity
- Registrar
- iana:303
- Organization
- —
- Contact emails
- —
Subdomains
53 observed subdomains of a2sys.co.
Showing 25 of 53. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from a2sys.co in the public web crawl.
16 sites link to this hostname.
7 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
- a2sys.co
SPF policy
3 SPF mechanisms authorising senders for a2sys.co.
| Mechanism | Target |
|---|---|
| SPF_A | a2sys.co |
| SPF_IP | 188.40.167.68 |
| SPF_MX | a2sys.co |
Related pages
Pivot deeper into the graph from a2sys.co.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "a2sys.co"})-[: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.