Skip to main content
WorldIP.io
CIDR Range

213.81.144.0/20

Addresses
4,096
4.1K
Sub-ranges
9+
within this block
PTR Density
98.6%
4.0K of 4.1K 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.

81/100
Trusted
How this score is built

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

Ranges inside 213.81.144.0/20

First and last addresses in 213.81.144.0/20

213.81.144.0/20 runs from 213.81.144.0 to 213.81.159.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 213.81.128.0/17.

Announced prefix
Origin AS
Announcement samples
31,228
Last seen
2026-11-13 16:35:48

Frequently Asked Questions

What is 213.81.144.0/20?

213.81.144.0/20 is a CIDR network block containing 4,096 IPv4 addresses (from 213.81.144.0 to 213.81.159.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 213.81.144.0/20 network?

The 213.81.144.0/20 range is allocated to Slovak Telekom, a.s. and announced via AS6855 from Slovakia.

Last updated: 2026-11-13 16:54:05 UTC
Share