Hostname
block.cc
Last fetched
block.cc resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:420 as the registrar.
Nutrition Label
Resolution chain
block.cc 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 |
|---|---|---|---|---|
| 104.21.38.187 | 104.21.32.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.137.94 | 172.67.128.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
WHOIS identity
- Registrar
- iana:420
- Organization
- ******** ******** (see notes section below on how to view unmasked data)
- Contact emails
Subdomains
15 observed subdomains of block.cc.
Web-graph footprint
Distinct hostnames that link to or from block.cc in the public web crawl.
26 sites link to this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
SPF policy
1 SPF mechanism authorising senders for block.cc.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | _spf.mx.cloudflare.net |
Related pages
Pivot deeper into the graph from block.cc.
- IP · 104.21.38.187
- ASN · AS13335CLOUDFLARENET - Cloudflare, Inc.
- Registrar · iana:420
- Country · CA
- Email · ********@*****.***
- TLD · .cc
- Browse hostnames · bl…
- 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: "block.cc"})-[: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.