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 v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Geolocation
First and last addresses in 4.243.157.0/24
4.243.157.0/24 runs from 4.243.157.0 to 4.243.157.255.
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 4.240.0.0/12.
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 4.243.157.0/24?
4.243.157.0/24 is a CIDR network block containing 256 IPv4 addresses (from 4.243.157.0 to 4.243.157.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 4.243.157.0/24 network?
The 4.243.157.0/24 range is allocated to Microsoft Corporation and announced via AS8075 from South Korea.
How many IP addresses are in 4.243.157.0/24?
4.243.157.0/24 contains exactly 256 usable IPv4 addresses. A /24 prefix length means 256 addresses are covered by this single routing entry.
