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CIDR Range

110.21.0.0/16

Addresses
65,536
65.5K
Sub-ranges
50+
within this block
PTR Density
49.6%
32.5K of 65.5K 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.

80/100
Trusted
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Ranges inside 110.21.0.0/16

CIDRIPsOrganizationASNCountry
110.21.0.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.96.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.192.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.208.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.224.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.64.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.240.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.48.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.176.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.160.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.144.0/20 4.1K Microplex PTY LTD AS4804 AU
110.21.24.0/21 2.0K Microplex PTY LTD AS4804 AU
110.21.40.0/21 2.0K Microplex PTY LTD AS4804 AU
110.21.128.0/21 2.0K Microplex PTY LTD AS4804 AU
110.21.120.0/21 2.0K Microplex PTY LTD AS4804 AU
110.21.16.0/22 1.0K Microplex PTY LTD AS4804 AU
110.21.92.0/22 1.0K Microplex PTY LTD AS4804 AU
110.21.116.0/22 1.0K Microplex PTY LTD AS4804 AU
110.21.136.0/22 1.0K Microplex PTY LTD AS4804 AU
110.21.32.0/22 1.0K Microplex PTY LTD AS4804 AU
110.21.84.0/22 1.0K Microplex PTY LTD AS4804 AU
110.21.90.0/23 512 Microplex PTY LTD AS4804 AU
110.21.82.0/23 512 Microplex PTY LTD AS4804 AU
110.21.112.0/23 512 Microplex PTY LTD AS4804 AU
110.21.36.0/23 512 Microplex PTY LTD AS4804 AU
110.21.142.0/23 512 Microplex PTY LTD AS4804 AU
110.21.22.0/23 512 Microplex PTY LTD AS4804 AU
110.21.81.0/24 256 Microplex PTY LTD AS4804 AU
110.21.140.0/24 256 Microplex PTY LTD AS4804 AU
110.21.38.0/24 256 Microplex PTY LTD AS4804 AU
110.21.115.0/24 256 Microplex PTY LTD AS4804 AU
110.21.89.0/24 256 Microplex PTY LTD AS4804 AU

First and last addresses in 110.21.0.0/16

110.21.0.0/16 runs from 110.21.0.0 to 110.21.255.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 110.20.0.0/14.

Announced prefix
Origin AS
Announcement samples
32,043
Last seen
2026-11-03 06:07:30

Frequently Asked Questions

What is 110.21.0.0/16?

110.21.0.0/16 is a CIDR network block containing 65,536 IPv4 addresses (from 110.21.0.0 to 110.21.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 110.21.0.0/16 network?

The 110.21.0.0/16 range is allocated to Microplex PTY LTD and announced via AS4804 from Australia.

Last updated: 2026-11-03 06:24:09 UTC
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