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
- Has a reverse-DNS (PTR) record +5
- Established allocation (14y) +3
- Trust score 73 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 166.1.4.0/23
First 256 of 512 IP addresses in 166.1.4.0/23
RIR Ownership History
Atom feed ⇲Allocation changes captured weekly from regional internet registry (RIR) delegation files.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | US |
Frequently Asked Questions
What is 166.1.4.0/23?
166.1.4.0/23 is a CIDR network block containing 512 IPv4 addresses (from 166.1.4.0 to 166.1.5.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 166.1.4.0/23 network?
The 166.1.4.0/23 range is allocated to Ace Data Centers II, L.L.C. and announced via AS401152 from United States.