Hostname
pen.org
Last fetched
pen.org resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:2 as the registrar.
Nutrition Label
Resolution chain
pen.org 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 |
|---|---|---|---|---|
| 172.66.133.210 | 172.66.128.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.66.139.165 | 172.66.128.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
WHOIS identity
- Registrar
- iana:2
- Organization
- pen american center
- Contact emails
Subdomains
116 observed subdomains of pen.org.
Showing 25 of 116. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from pen.org in the public web crawl.
7,128 sites link to this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
5 SPF mechanisms authorising senders for pen.org.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | _spf.google.com |
| SPF_INCLUDE | _spfprod.ngpvan.com |
| SPF_INCLUDE | mailgun.org |
| SPF_INCLUDE | outboundmail.blackbaud.net |
| SPF_INCLUDE | outboundmail.convio.net |
Related pages
Pivot deeper into the graph from pen.org.
- IP · 172.66.133.210
- ASN · AS13335CLOUDFLARENET - Cloudflare, Inc.
- Registrar · iana:2
- Country · CA
- Email · e22nf8aj4vx@networksolutionsprivateregistration.com
- TLD · .org
- Browse hostnames · pe…
- 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: "pen.org"})-[: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.