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CIDR Range

138.122.74.0/23

Addresses
512
512
Sub-ranges
0+
within this block
PTR Density
99.6%
510 of 512 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.

78/100
Moderate
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 138.122.74.0/23

138.122.74.0/23 runs from 138.122.74.0 to 138.122.75.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 138.122.72.0/22.

Announced prefix
Origin AS
Announcement samples
157,713
Last seen
2026-10-27 07:27:13

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 RIR Transfer arin lacnic

Frequently Asked Questions

What is 138.122.74.0/23?

138.122.74.0/23 is a CIDR network block containing 512 IPv4 addresses (from 138.122.74.0 to 138.122.75.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 138.122.74.0/23 network?

The 138.122.74.0/23 range is allocated to Star Servicos de Internet LTDA and announced via AS263263 from Brazil.

Last updated: 2026-10-27 07:39:06 UTC
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