Hostname
ostc.com
Last fetched
ostc.com resolves to 1 IPv4 address operated by AS203476 in FR. WHOIS lists iana:81 as the registrar.
Nutrition Label
Resolution chain
ostc.com resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 155.133.142.4 | 155.133.128.0/20 | AS203476 | — | FR |
WHOIS identity
- Registrar
- iana:81
- Organization
- ian firla
- Contact emails
- it-mgmt@ostc.com
- 047bf4fdf65da4cd11418c2c28f73323-1826934@contact.gandi.net
- 7373da91903d0678c7ec24eea25dcc0a-1826934@contact.gandi.net
- 7fb8830eaa21c438fbf1ec5633f5aaa0-1826934@contact.gandi.net
- 84dbc6f66747cfcfe50f19c3a272725e-1826934@contact.gandi.net
- aa3f2b67380e3c507bbdd1cdcf0929e3-1826934@contact.gandi.net
- c1d8d80ef55a4e8cec4235bd1833f023-1826934@contact.gandi.net
Subdomains
16 observed subdomains of ostc.com.
Web-graph footprint
Distinct hostnames that link to or from ostc.com in the public web crawl.
36 sites link to this hostname.
Threat posture
History
Mail and authentication
MX records
SPF policy
12 SPF mechanisms authorising senders for ostc.com.
| Mechanism | Target |
|---|---|
| SPF_A | ostc.com |
| SPF_INCLUDE | _spf.psm.knowbe4.com |
| SPF_INCLUDE | servers.mcsv.net |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 147.160.167.0/26 |
| SPF_IP | 188.39.180.118/32 |
| SPF_IP | 23.21.109.197/32 |
| SPF_IP | 23.21.109.212/32 |
| SPF_IP | 5.148.156.186/32 |
| SPF_IP | 52.49.201.246/32 |
| SPF_IP | 52.49.235.189/32 |
| SPF_MX | ostc.com |
Related pages
Pivot deeper into the graph from ostc.com.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "ostc.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.