CIDR Range

42.72.143.176/28

16 IPs /28 Mobile Business Group AS17421 Taiwan APNIC

Addresses

IP Range

42.72.143.176

→ 42.72.143.191

Sub-ranges

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.

76/100

Moderate

How this score is built

Baseline (neutral) 65
Long-established allocation (15y) +6
Has a reverse-DNS (PTR) record +5
Trust score 76 / 100

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

All 16 IP addresses in 42.72.143.176/28

42.72.143.176 42.72.143.177 42.72.143.178 42.72.143.179 42.72.143.180 42.72.143.181 42.72.143.182 42.72.143.183 42.72.143.184 42.72.143.185 42.72.143.186 42.72.143.187 42.72.143.188 42.72.143.189 42.72.143.190 42.72.143.191

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 42.72.128.0/18.

Announced prefix

42.72.128.0/18

Origin AS

AS17421

Announcement samples

11,684

Last seen

2026-07-23 15:00:39

Frequently Asked Questions

What is 42.72.143.176/28?

42.72.143.176/28 is a CIDR network block containing 16 IPv4 addresses (from 42.72.143.176 to 42.72.143.191). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 42.72.143.176/28 network?

The 42.72.143.176/28 range is allocated to Mobile Business Group and announced via AS17421 from Taiwan.

How many IP addresses are in 42.72.143.176/28?

42.72.143.176/28 contains exactly 16 usable IPv4 addresses. A /28 prefix length means 16 addresses are covered by this single routing entry.

Last updated: 2026-07-23 15:25:31 UTC