Hostname
rf.com.br
Last fetched
rf.com.br resolves to 1 IPv4 address operated by NipBr - NipCable do Brasil Telecom LTDA in BR.
Nutrition Label
Resolution chain
rf.com.br 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 |
|---|---|---|---|---|
| 186.236.71.162 | 186.236.64.0/21 | AS27693 | NipBr - NipCable do Brasil Telecom LTDA | BR |
WHOIS identity
- Registrar
- —
- Organization
- rf com sistemas ltda.
- Contact emails
Subdomains
11 observed subdomains of rf.com.br.
Web-graph footprint
Distinct hostnames that link to or from rf.com.br in the public web crawl.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
- 186.236.71.162.rf.com.br
- rf.com.br
SPF policy
4 SPF mechanisms authorising senders for rf.com.br.
| Mechanism | Target |
|---|---|
| SPF_A | rf.com.br |
| SPF_IP | 131.255.236.162/32 |
| SPF_IP | 186.235.71.162/32 |
| SPF_MX | rf.com.br |
Related pages
Pivot deeper into the graph from rf.com.br.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "rf.com.br"})-[: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.