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CIDR Range

221.166.160.0/19

Addresses
8,192
8.2K
Sub-ranges
0+
within this block
PTR Density
0.0%
4 of 8.2K 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 →

Geolocation

First and last addresses in 221.166.160.0/19

221.166.160.0/19 runs from 221.166.160.0 to 221.166.191.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 221.160.0.0/13.

Announced prefix
Origin AS
Announcement samples
23,094
Last seen
2026-11-14 21:40:52

Frequently Asked Questions

What is 221.166.160.0/19?

221.166.160.0/19 is a CIDR network block containing 8,192 IPv4 addresses (from 221.166.160.0 to 221.166.191.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 221.166.160.0/19 network?

The 221.166.160.0/19 range is allocated to Korea Telecom and announced via AS4766 from South Korea.

Last updated: 2026-11-14 21:39:05 UTC
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