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CIDR Range

198.21.28.0/22

Addresses
1,024
1.0K
Sub-ranges
0+
within this block
PTR Density
0.1%
1 of 1.0K 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 198.21.28.0/22

198.21.28.0/22 runs from 198.21.28.0 to 198.21.31.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 198.21.16.0/20.

Announced prefix
Origin AS
Announcement samples
17,226
Last seen
2026-11-13 10:20:43

RIR Ownership History

Atom feed ⇲

Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours.

Date Event From To
2026-05-10 New Allocation — US

Frequently Asked Questions

What is 198.21.28.0/22?

198.21.28.0/22 is a CIDR network block containing 1,024 IPv4 addresses (from 198.21.28.0 to 198.21.31.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 198.21.28.0/22 network?

The 198.21.28.0/22 range is allocated to La Roche Ltd. and announced via AS2047 from United States.

Last updated: 2026-11-13 10:39:04 UTC
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