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CIDR Range

31.77.28.0/23

Addresses
512
512
Sub-ranges
6+
within this block
PTR Density
82.6%
423 of 512 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.

64/100
Moderate
How this score is built

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

Ranges inside 31.77.28.0/23

First and last addresses in 31.77.28.0/23

31.77.28.0/23 runs from 31.77.28.0 to 31.77.29.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 31.77.28.0/22.

Announced prefix
Origin AS
⚠ 2 origins (MOAS)
Announcement samples
72,559
Last seen
2026-08-16 14:55:32

RIR Ownership History

Atom feed ⇲

Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours.

Date Event From To
2026-05-10 New Allocation — US

Frequently Asked Questions

What is 31.77.28.0/23?

31.77.28.0/23 is a CIDR network block containing 512 IPv4 addresses (from 31.77.28.0 to 31.77.29.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 31.77.28.0/23 network?

The 31.77.28.0/23 range is allocated to Akenai Products LTD and announced via AS219064 from United States.

Last updated: 2026-11-13 22:24:05 UTC
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