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CIDR Range

81.18.58.230/31

Addresses
2
2
Sub-ranges
0+
within this block
PTR Density
100.0%
2 of 2 IPs have PTR ~

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.

76/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

All 2 IP addresses in 81.18.58.230/31

Not announced as an exact prefix — covered by the announced supernet 81.18.58.0/24.

Announced prefix
Origin AS
Announcement samples
56,186
Last seen
2026-10-14 05:42:55

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 — RS

Frequently Asked Questions

What is 81.18.58.230/31?

81.18.58.230/31 is a CIDR network block containing 2 IPv4 addresses (from 81.18.58.230 to 81.18.58.231). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 81.18.58.230/31 network?

The 81.18.58.230/31 range is allocated to Johannes Ernst and announced via AS212895 from The Netherlands.

How many IP addresses are in 81.18.58.230/31?

81.18.58.230/31 contains exactly 2 usable IPv4 addresses. A /31 prefix length means 2 addresses are covered by this single routing entry.

Last updated: 2026-10-14 07:09:05 UTC
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