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CIDR Range

81.163.136.0/24

Addresses
256
256
Sub-ranges
26+
within this block
PTR Density
0.0%
0 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.

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 →

Ranges inside 81.163.136.0/24

CIDRIPsOrganizationASNCountry
81.163.136.0/26 64 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.192/26 64 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.64/27 32 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.96/28 16 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.176/28 16 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.128/28 16 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.144/29 8 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.160/29 8 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.172/30 4 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.156/30 4 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.116/30 4 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.122/31 2 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.126/31 2 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.114/31 2 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.170/31 2 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.154/31 2 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.112/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.120/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.169/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 RU
81.163.136.168/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.121/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 RU
81.163.136.125/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 RU
81.163.136.124/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.152/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 UA
81.163.136.113/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 RU
81.163.136.153/32 1 State Unitary Enterprise Of The Donetsk People's Republic republican Telecommunications Ope AS214721 RU

Geolocation

First and last addresses in 81.163.136.0/24

81.163.136.0/24 runs from 81.163.136.0 to 81.163.136.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 81.163.136.0/23.

Announced prefix
Origin AS
Announcement samples
202,772
Last seen
2026-11-15 01:40:17

Frequently Asked Questions

What is 81.163.136.0/24?

81.163.136.0/24 is a CIDR network block containing 256 IPv4 addresses (from 81.163.136.0 to 81.163.136.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 81.163.136.0/24 network?

The 81.163.136.0/24 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 81.163.136.0/24?

81.163.136.0/24 contains exactly 256 usable IPv4 addresses. A /24 prefix length means 256 addresses are covered by this single routing entry.

Last updated: 2026-11-15 02:24:05 UTC
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