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CIDR Range

81.3.80.0/24

Addresses
256
256
Sub-ranges
0+
within this block
PTR Density
22.7%
58 of 256 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.

80/100
Trusted
How this score is built

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

Geolocation

First and last addresses in 81.3.80.0/24

81.3.80.0/24 runs from 81.3.80.0 to 81.3.80.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 81.3.64.0/18.

Announced prefix
Origin AS
Announcement samples
16,125
Last seen
2026-10-28 21:04:34

Frequently Asked Questions

What is 81.3.80.0/24?

81.3.80.0/24 is a CIDR network block containing 256 IPv4 addresses (from 81.3.80.0 to 81.3.80.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 81.3.80.0/24 network?

The 81.3.80.0/24 range is allocated to Digital Space Group Limited and announced via AS8607 from United Kingdom.

How many IP addresses are in 81.3.80.0/24?

81.3.80.0/24 contains exactly 256 usable IPv4 addresses. A /24 prefix length means 256 addresses are covered by this single routing entry.

Last updated: 2026-10-28 22:54:05 UTC
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