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CIDR Range

201.163.156.0/22

Addresses
1,024
1.0K
Sub-ranges
0+
within this block
PTR Density
97.8%
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.

80/100
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 201.163.156.0/22

201.163.156.0/22 runs from 201.163.156.0 to 201.163.159.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 201.163.152.0/21.

Announced prefix
Origin AS
Announcement samples
33,888
Last seen
2026-11-13 08:53:00

Frequently Asked Questions

What is 201.163.156.0/22?

201.163.156.0/22 is a CIDR network block containing 1,024 IPv4 addresses (from 201.163.156.0 to 201.163.159.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 201.163.156.0/22 network?

The 201.163.156.0/22 range is allocated to Alestra, S. de R.L. de C.V. and announced via AS11172 from Mexico.

Last updated: 2026-11-13 09:09:05 UTC
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