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CIDR Range

188.39.136.0/22

Addresses
1,024
1.0K
Sub-ranges
0+
within this block
PTR Density
100.0%
1.0K of 1.0K 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.

81/100
Trusted
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 188.39.136.0/22

188.39.136.0/22 runs from 188.39.136.0 to 188.39.139.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 188.39.0.0/16.

Announced prefix
Origin AS
Announcement samples
112,350
Last seen
2026-11-13 18:03:56

Frequently Asked Questions

What is 188.39.136.0/22?

188.39.136.0/22 is a CIDR network block containing 1,024 IPv4 addresses (from 188.39.136.0 to 188.39.139.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 188.39.136.0/22 network?

The 188.39.136.0/22 range is allocated to Cityfibre Limited and announced via AS8468 from United Kingdom.

Last updated: 2026-11-13 18:24:05 UTC
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