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CIDR Range

181.191.96.0/23

Addresses
512
512
Sub-ranges
8+
within this block
PTR Density
98.2%
503 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.

73/100
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 181.191.96.0/23

First and last addresses in 181.191.96.0/23

181.191.96.0/23 runs from 181.191.96.0 to 181.191.97.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 181.191.96.0/22.

Announced prefix
Origin AS
Announcement samples
108,185
Last seen
2026-11-14 19:00:35

Frequently Asked Questions

What is 181.191.96.0/23?

181.191.96.0/23 is a CIDR network block containing 512 IPv4 addresses (from 181.191.96.0 to 181.191.97.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 181.191.96.0/23 network?

The 181.191.96.0/23 range is allocated to VBS TECNOLOGIA LTDA and announced via AS266003 from Brazil.

Last updated: 2026-11-14 19:39:05 UTC
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