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CIDR Range

139.45.246.0/23

Addresses
512
512
Sub-ranges
0+
within this block
PTR Density
28.3%
145 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.

76/100
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 139.45.246.0/23

139.45.246.0/23 runs from 139.45.246.0 to 139.45.247.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 139.45.224.0/19.

Announced prefix
Origin AS
Announcement samples
13,761
Last seen
2026-10-27 12:24:27

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 — RU

Frequently Asked Questions

What is 139.45.246.0/23?

139.45.246.0/23 is a CIDR network block containing 512 IPv4 addresses (from 139.45.246.0 to 139.45.247.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 139.45.246.0/23 network?

The 139.45.246.0/23 range is allocated to JSC RetnNet and announced via AS57304 from Russia.

Last updated: 2026-10-27 12:39:05 UTC
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