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CIDR Range

155.181.0.0/22

1.0K IPs /22 United States ARIN
Addresses
1,024
1.0K
Sub-ranges
3+
within this block
PTR Density
0.0%
0 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.

62/100
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 155.181.0.0/22

Geolocation

First and last addresses in 155.181.0.0/22

155.181.0.0/22 runs from 155.181.0.0 to 155.181.3.255.

First 16
Last 16

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 155.181.0.0/22?

155.181.0.0/22 is a CIDR network block containing 1,024 IPv4 addresses (from 155.181.0.0 to 155.181.3.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 155.181.0.0/22 network?

The 155.181.0.0/22 range is allocated to an unknown organization from United States.

Last updated: 2026-10-27 09:09:05 UTC
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