104.21.5.252
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Datacenter — common VPN/proxy host −6
- Not on any threat blocklist +5
- Established allocation (12y) +3
- Trust score 67 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network Allocation for 104.21.5.252
- CIDR range
- 104.21.0.0/17
- IP range (int)
- 1,746,206,720 — 1,746,239,487
- Prefix length
- /17
- Organization
- Cloudflare, Inc.
- ASN
- AS13335
- ASN name
- Cloudflare, Inc.
- Location
- United States
- Regional Internet Registry
- ARIN
- Allocated
- 2014-03-28
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-06-09 06:06:37
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
RIR Ownership History
Atom feed ⇲Allocation changes captured weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | US |
See the full history for 104.21.0.0/17.
Frequently Asked Questions
Who owns 104.21.5.252?
104.21.5.252 is allocated to Cloudflare, Inc. (AS13335), registered in United States.
Where is 104.21.5.252 located?
The geolocation for 104.21.5.252 maps to United States based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.
What network is 104.21.5.252 on?
104.21.5.252 belongs to the 104.21.0.0/17 network block announced by AS13335. This range contains 32,768 addresses.
Does 104.21.5.252 have a reverse DNS record?
Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.
Neighbors
Other addresses in the same /24.
