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CIDR Range

137.255.224.0/20

Addresses
4,096
4.1K
Sub-ranges
0+
within this block
PTR Density
0.0%
0 of 4.1K 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.

72/100
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 137.255.224.0/20

137.255.224.0/20 runs from 137.255.224.0 to 137.255.239.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 137.255.0.0/16.

Announced prefix
Origin AS
Announcement samples
90,925
Last seen
2026-11-13 19:05:44

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 RIR Transfer arin afrinic

Frequently Asked Questions

What is 137.255.224.0/20?

137.255.224.0/20 is a CIDR network block containing 4,096 IPv4 addresses (from 137.255.224.0 to 137.255.239.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 137.255.224.0/20 network?

The 137.255.224.0/20 range is allocated to SOCIETE BENINOISE D'INFRASTRUCTURES NUMERIQUES and announced via AS328228 from Benin.

Last updated: 2026-11-13 19:24:05 UTC
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