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
- Long-established allocation (18y) +6
- Enterprise allocation +4
- Trust score 75 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Geolocation
All 1 IP addresses in 173.39.121.71/32
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 173.39.96.0/19.
RIR Ownership History
Atom feed ⇲Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | US |
Frequently Asked Questions
What is 173.39.121.71/32?
173.39.121.71/32 is a CIDR network block containing 1 IPv4 addresses (from 173.39.121.71 to 173.39.121.71). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 173.39.121.71/32 network?
The 173.39.121.71/32 range is allocated to CISCO SYSTEMS, INC. and announced via AS109 from Singapore.
How many IP addresses are in 173.39.121.71/32?
173.39.121.71/32 contains exactly 1 usable IPv4 addresses. A /32 prefix length means 1 addresses are covered by this single routing entry.
