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CIDR Range

221.120.83.0/24

Addresses
256
256
Sub-ranges
0+
within this block
PTR Density
100.0%
256 of 256 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 221.120.83.0/24

221.120.83.0/24 runs from 221.120.83.0 to 221.120.83.255.

First 16
Last 16

This block is announced in BGP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
56,620
Last seen
2026-11-14 09:46:28

Frequently Asked Questions

What is 221.120.83.0/24?

221.120.83.0/24 is a CIDR network block containing 256 IPv4 addresses (from 221.120.83.0 to 221.120.83.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 221.120.83.0/24 network?

The 221.120.83.0/24 range is allocated to Mobile Business Group and announced via AS17421 from Taiwan.

How many IP addresses are in 221.120.83.0/24?

221.120.83.0/24 contains exactly 256 usable IPv4 addresses. A /24 prefix length means 256 addresses are covered by this single routing entry.

Last updated: 2026-11-14 10:24:04 UTC
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