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CIDR Range

103.123.133.32/28

Addresses
16
16
Sub-ranges
0+
within this block
PTR Density
100.0%
16 of 16 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.

73/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

All 16 IP addresses in 103.123.133.32/28

Not announced as an exact prefix — covered by the announced supernet 103.123.132.0/22.

Announced prefix
Origin AS
Announcement samples
6,272
Last seen
2026-07-24 15:47:06

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files.

Date Event From To
2026-05-10 New Allocation TW

Frequently Asked Questions

What is 103.123.133.32/28?

103.123.133.32/28 is a CIDR network block containing 16 IPv4 addresses (from 103.123.133.32 to 103.123.133.47). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 103.123.133.32/28 network?

The 103.123.133.32/28 range is allocated to Imcloud Technology Co., Ltd. and announced via AS131151 from Taiwan.

How many IP addresses are in 103.123.133.32/28?

103.123.133.32/28 contains exactly 16 usable IPv4 addresses. A /28 prefix length means 16 addresses are covered by this single routing entry.

Last updated: 2026-07-24 15:55:31 UTC
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