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CIDR Range

81.163.128.174/31

Addresses
2
2
Sub-ranges
0+
within this block
PTR Density
0.0%
0 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 v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

All 2 IP addresses in 81.163.128.174/31

Not announced as an exact prefix — covered by the announced supernet 81.163.128.0/23.

Announced prefix
Origin AS
Announcement samples
202,452
Last seen
2026-11-15 01:40:17

Frequently Asked Questions

What is 81.163.128.174/31?

81.163.128.174/31 is a CIDR network block containing 2 IPv4 addresses (from 81.163.128.174 to 81.163.128.175). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 81.163.128.174/31 network?

The 81.163.128.174/31 range is allocated to State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope and announced via AS214721 from Russia.

How many IP addresses are in 81.163.128.174/31?

81.163.128.174/31 contains exactly 2 usable IPv4 addresses. A /31 prefix length means 2 addresses are covered by this single routing entry.

Last updated: 2026-11-15 02:09:05 UTC
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