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CIDR Range

104.28.137.96/27

Addresses
32
32
Sub-ranges
50+
within this block
PTR Density
0.0%
0 of 32 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.

68/100
Moderate
How this score is built

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

Ranges inside 104.28.137.96/27

CIDRIPsOrganizationASNCountry
104.28.137.112/28 16 Cloudflare, Inc. AS13335 US
104.28.137.112/28 16 Cloudflare, Inc. AS13335 US
104.28.137.96/29 8 Cloudflare, Inc. AS13335 US
104.28.137.112/29 8 Cloudflare, Inc. AS13335 US
104.28.137.112/29 8 Cloudflare, Inc. AS13335 US
104.28.137.96/29 8 Cloudflare, Inc. AS13335 US
104.28.137.96/29 8 Cloudflare, Inc. AS13335 US
104.28.137.108/30 4 Cloudflare, Inc. AS13335 US
104.28.137.120/30 4 Cloudflare, Inc. AS13335 US
104.28.137.120/30 4 Cloudflare, Inc. AS13335 US
104.28.137.116/30 4 Cloudflare, Inc. AS13335 US
104.28.137.108/30 4 Cloudflare, Inc. AS13335 US
104.28.137.110/31 2 Cloudflare, Inc. AS13335 US
104.28.137.110/31 2 Cloudflare, Inc. AS13335 US
104.28.137.122/31 2 Cloudflare, Inc. AS13335 US
104.28.137.114/31 2 Cloudflare, Inc. AS13335 US
104.28.137.126/31 2 Cloudflare, Inc. AS13335 US
104.28.137.127/32 1 Cloudflare, Inc. AS13335 US
104.28.137.126/32 1 Cloudflare, Inc. AS13335 IN
104.28.137.109/32 1 Cloudflare, Inc. AS13335 US
104.28.137.113/32 1 Cloudflare, Inc. AS13335 US
104.28.137.126/32 1 Cloudflare, Inc. AS13335 US
104.28.137.126 1 Cloudflare, Inc. AS13335 IN
104.28.137.125/32 1 Cloudflare, Inc. AS13335 JP
104.28.137.125/32 1 Cloudflare, Inc. AS13335 US
104.28.137.120/32 1 Cloudflare, Inc. AS13335 US
104.28.137.125 1 Cloudflare, Inc. AS13335 JP
104.28.137.127/32 1 Cloudflare, Inc. AS13335 US
104.28.137.124/32 1 Cloudflare, Inc. AS13335 US
104.28.137.124/32 1 Cloudflare, Inc. AS13335 US
104.28.137.124 1 Cloudflare, Inc. AS13335 US
104.28.137.121/32 1 Cloudflare, Inc. AS13335 US
104.28.137.127 1 Cloudflare, Inc. AS13335 US
104.28.137.112/32 1 Cloudflare, Inc. AS13335 US
104.28.137.107/32 1 Cloudflare, Inc. AS13335 US
104.28.137.107 1 Cloudflare, Inc. AS13335 LA
104.28.137.106/32 1 Cloudflare, Inc. AS13335 TH
104.28.137.106/32 1 Cloudflare, Inc. AS13335 US
104.28.137.106 1 Cloudflare, Inc. AS13335 TH
104.28.137.105/32 1 Cloudflare, Inc. AS13335 PH
104.28.137.105/32 1 Cloudflare, Inc. AS13335 US
104.28.137.105 1 Cloudflare, Inc. AS13335 PH
104.28.137.104/32 1 Cloudflare, Inc. AS13335 AZ
104.28.137.104/32 1 Cloudflare, Inc. AS13335 US
104.28.137.107/32 1 Cloudflare, Inc. AS13335 LA
104.28.137.108 1 Cloudflare, Inc. AS13335 US
104.28.137.111/32 1 Cloudflare, Inc. AS13335 DE
104.28.137.111/32 1 Cloudflare, Inc. AS13335 US
104.28.137.111 1 Cloudflare, Inc. AS13335 DE
104.28.137.110/32 1 Cloudflare, Inc. AS13335 AU

Geolocation

All 32 IP addresses in 104.28.137.96/27

Not announced as an exact prefix — covered by the announced supernet 104.28.137.0/24.

Announced prefix
Origin AS
Announcement samples
5,733
Last seen
2026-07-26 07:47:20

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files.

Date Event From To
2026-05-10 New Allocation US

Frequently Asked Questions

What is 104.28.137.96/27?

104.28.137.96/27 is a CIDR network block containing 32 IPv4 addresses (from 104.28.137.96 to 104.28.137.127). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 104.28.137.96/27 network?

The 104.28.137.96/27 range is allocated to Cloudflare, Inc. and announced via AS13335 from United States.

How many IP addresses are in 104.28.137.96/27?

104.28.137.96/27 contains exactly 32 usable IPv4 addresses. A /27 prefix length means 32 addresses are covered by this single routing entry.

Last updated: 2026-07-26 07:55:32 UTC
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