Hostname
firstreference.net
Last fetched
firstreference.net resolves to 1 IPv4 address operated by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation in CA. WHOIS lists iana:2 as the registrar.
Nutrition Label
Resolution chain
firstreference.net 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 |
|---|---|---|---|---|
| 52.233.23.37 | 52.224.0.0/11 | AS8075 | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | CA |
WHOIS identity
- Registrar
- iana:2
- Organization
- first reference
- Contact emails
Subdomains
6 observed subdomains of firstreference.net.
Threat posture
History
Mail and authentication
MX records
SPF policy
9 SPF mechanisms authorising senders for firstreference.net.
| Mechanism | Target |
|---|---|
| SPF_A | firstreference.net |
| SPF_INCLUDE | cebounce.firstreference.net |
| SPF_INCLUDE | em9467.firstreference.net |
| SPF_INCLUDE | u15345098.wl099.sendgrid.net |
| SPF_IP | 149.72.34.237 |
| SPF_IP | 52.233.23.37 |
| SPF_IP | 52.233.63.15 |
| SPF_IP | 52.237.32.251 |
| SPF_MX | firstreference.net |
Related pages
Pivot deeper into the graph from firstreference.net.
- IP · 52.233.23.37
- ASN · AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
- Registrar · iana:2
- Country · CA
- Email · bgarnet@firstreference.com
- TLD · .net
- Browse hostnames · fi…
- Glossary · What is a hostname?
- Whisper Internet Directory — home
- Live MOAS conflicts feed
- Threat feed · Spamhaus DROP
- United States internet infrastructure
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "firstreference.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.