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CIDR Range

121.100.7.172/30

Addresses
4
4
Sub-ranges
0+
within this block
PTR Density
0.0%
0 of 4 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.

75/100
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 4 IP addresses in 121.100.7.172/30

Not announced as an exact prefix — covered by the announced supernet 121.100.0.0/21.

Announced prefix
Origin AS
Announcement samples
7,950
Last seen
2026-07-27 02:32:06

Frequently Asked Questions

What is 121.100.7.172/30?

121.100.7.172/30 is a CIDR network block containing 4 IPv4 addresses (from 121.100.7.172 to 121.100.7.175). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 121.100.7.172/30 network?

The 121.100.7.172/30 range is allocated to PT. Cyberindo Aditama and announced via AS38158 from Indonesia.

How many IP addresses are in 121.100.7.172/30?

121.100.7.172/30 contains exactly 4 usable IPv4 addresses. A /30 prefix length means 4 addresses are covered by this single routing entry.

Last updated: 2026-07-27 02:55:34 UTC
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