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CIDR Range

87.83.12.0/23

512 IPs /23 United Kingdom RIPE
Addresses
512
512
Sub-ranges
4+
within this block
PTR Density
1.4%
7 of 512 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.

64/100
Moderate
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Ranges inside 87.83.12.0/23

Geolocation

First and last addresses in 87.83.12.0/23

87.83.12.0/23 runs from 87.83.12.0 to 87.83.13.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 87.82.0.0/15.

Announced prefix
Origin AS
⚠ 2 origins (MOAS)
Announcement samples
8,406
Last seen
2026-10-28 01:46:07

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 — GB

Frequently Asked Questions

What is 87.83.12.0/23?

87.83.12.0/23 is a CIDR network block containing 512 IPv4 addresses (from 87.83.12.0 to 87.83.13.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 87.83.12.0/23 network?

The 87.83.12.0/23 range is allocated to an unknown organization from United Kingdom.

Last updated: 2026-10-28 02:24:06 UTC
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