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CIDR Range

189.45.136.0/21

Addresses
2,048
2.0K
Sub-ranges
0+
within this block
PTR Density
94.1%
1.9K of 2.0K 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 189.45.136.0/21

189.45.136.0/21 runs from 189.45.136.0 to 189.45.143.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 189.45.128.0/19.

Announced prefix
Origin AS
Announcement samples
31,437
Last seen
2026-10-30 20:15:16

Frequently Asked Questions

What is 189.45.136.0/21?

189.45.136.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 189.45.136.0 to 189.45.143.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 189.45.136.0/21 network?

The 189.45.136.0/21 range is allocated to MUNDIVOX DO BRASIL LTDA and announced via AS17222 from Brazil.

Last updated: 2026-10-30 21:09:05 UTC
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