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CIDR Range

38.101.220.0/22

Addresses
1,024
1.0K
Sub-ranges
31+
within this block
PTR Density
10.5%
108 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 →

Ranges inside 38.101.220.0/22

CIDRIPsOrganizationASNCountry
38.101.220.0/23 512 Cogent Communications, LLC AS174 US
38.101.223.0/24 256 Cogent Communications, LLC AS174 MX
38.101.223.0/24 256 Cogent Communications, LLC AS174 US
38.101.222.0/24 256 Cogent Communications, LLC AS174 US
38.101.222.0/25 128 Cogent Communications, LLC AS174 US
38.101.221.0/25 128 Cogent Communications, LLC AS174 US
38.101.220.64/26 64 Cogent Communications, LLC AS174 US
38.101.221.192/26 64 Cogent Communications, LLC AS174 US
38.101.222.192/27 32 Cogent Communications, LLC AS174 US
38.101.222.160/27 32 Cogent Communications, LLC AS174 US
38.101.220.192/27 32 Cogent Communications, LLC AS174 US
38.101.220.128/27 32 Cogent Communications, LLC AS174 US
38.101.221.160/27 32 Cogent Communications, LLC AS174 US
38.101.221.128/27 32 Cogent Communications, LLC AS174 US
38.101.220.32/28 16 Cogent Communications, LLC AS174 US
38.101.220.0/28 16 Cogent Communications, LLC AS174 US
38.101.220.240/28 16 Cogent Communications, LLC AS174 US
38.101.222.224/28 16 Cogent Communications, LLC AS174 US
38.101.222.240/28 16 Cogent Communications, LLC AS174 US
38.101.220.176/28 16 Cogent Communications, LLC AS174 US
38.101.220.16/28 16 Cogent Communications, LLC AS174 US
38.101.222.152/29 8 Cogent Communications, LLC AS174 US
38.101.222.144/29 8 Cogent Communications, LLC AS174 US
38.101.222.136/29 8 Cogent Communications, LLC AS174 US
38.101.222.128/29 8 Cogent Communications, LLC AS174 US
38.101.220.48/29 8 Cogent Communications, LLC AS174 US
38.101.220.56/29 8 Cogent Communications, LLC AS174 US
38.101.220.232/29 8 Cogent Communications, LLC AS174 US
38.101.220.224/29 8 Cogent Communications, LLC AS174 US
38.101.220.168/29 8 Cogent Communications, LLC AS174 US
38.101.220.160/29 8 Cogent Communications, LLC AS174 US

First and last addresses in 38.101.220.0/22

38.101.220.0/22 runs from 38.101.220.0 to 38.101.223.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 38.0.0.0/8.

Announced prefix
Origin AS
Announcement samples
17,688
Last seen
2026-11-13 09:39:56

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 New Allocation — US

Frequently Asked Questions

What is 38.101.220.0/22?

38.101.220.0/22 is a CIDR network block containing 1,024 IPv4 addresses (from 38.101.220.0 to 38.101.223.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 38.101.220.0/22 network?

The 38.101.220.0/22 range is allocated to Cogent Communications, LLC and announced via AS174 from United States.

Last updated: 2026-11-13 10:09:05 UTC
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