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
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 38.125.93.0/24 | 256 |
0.0%
|
Complete Discovery Source | US | — | — |
| 154.60.112.0/24 | 256 |
0.0%
|
Complete Discovery Source | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS53521 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 38.125.93.0/24 | 16,070 | 2026-08-03 22:08:01 |
| 154.60.112.0/24 | 6,462 | 2026-08-03 22:07:57 |
Frequently Asked Questions
What is AS53521?
AS53521 is an Autonomous System Number assigned to Complete Discovery Source. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS53521 announce?
AS53521 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United States.
Who operates AS53521?
AS53521 is operated by Complete Discovery Source. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS53521 registered in?
AS53521 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
