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CIDR Range

78.133.121.12/31

Addresses
2
2
Sub-ranges
0+
within this block
PTR Density
0.0%
0 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.

71/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

All 2 IP addresses in 78.133.121.12/31

Not announced as an exact prefix — covered by the announced supernet 78.133.112.0/20.

Announced prefix
Origin AS
Announcement samples
14,321
Last seen
2026-07-23 21:15:11

Frequently Asked Questions

What is 78.133.121.12/31?

78.133.121.12/31 is a CIDR network block containing 2 IPv4 addresses (from 78.133.121.12 to 78.133.121.13). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 78.133.121.12/31 network?

The 78.133.121.12/31 range is allocated to GO p.l.c. and announced via AS15735 from Malta.

How many IP addresses are in 78.133.121.12/31?

78.133.121.12/31 contains exactly 2 usable IPv4 addresses. A /31 prefix length means 2 addresses are covered by this single routing entry.

Last updated: 2026-07-23 21:25:31 UTC
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