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CIDR Range

37.27.166.66/31

Addresses
2
2
Sub-ranges
0+
within this block
PTR Density
100.0%
2 of 2 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 v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

All 2 IP addresses in 37.27.166.66/31

Not announced as an exact prefix — covered by the announced supernet 37.27.0.0/16.

Announced prefix
Origin AS
Announcement samples
56,890
Last seen
2026-10-06 17:42:38

Frequently Asked Questions

What is 37.27.166.66/31?

37.27.166.66/31 is a CIDR network block containing 2 IPv4 addresses (from 37.27.166.66 to 37.27.166.67). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 37.27.166.66/31 network?

The 37.27.166.66/31 range is allocated to Hetzner Online GmbH and announced via AS24940 from Finland.

How many IP addresses are in 37.27.166.66/31?

37.27.166.66/31 contains exactly 2 usable IPv4 addresses. A /31 prefix length means 2 addresses are covered by this single routing entry.

Last updated: 2026-10-06 18:54:05 UTC
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