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CIDR Range

104.28.63.64/26

Addresses
64
64
Sub-ranges
45+
within this block
PTR Density
0.0%
0 of 64 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.

73/100
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 104.28.63.64/26

CIDRIPsOrganizationASNCountry
104.28.63.104/29 8 Cloudflare, Inc. AS13335 US
104.28.63.112/29 8 Cloudflare, Inc. AS13335 US
104.28.63.100/30 4 Cloudflare, Inc. AS13335 US
104.28.63.120/31 2 Cloudflare, Inc. AS13335 US
104.28.63.98/31 2 Cloudflare, Inc. AS13335 US
104.28.63.93/32 1 Cloudflare, Inc. AS13335 US
104.28.63.127/32 1 Cloudflare, Inc. AS13335 US
104.28.63.92/32 1 Cloudflare, Inc. AS13335 US
104.28.63.91/32 1 Cloudflare, Inc. AS13335 US
104.28.63.90/32 1 Cloudflare, Inc. AS13335 US
104.28.63.89/32 1 Cloudflare, Inc. AS13335 US
104.28.63.88/32 1 Cloudflare, Inc. AS13335 US
104.28.63.94/32 1 Cloudflare, Inc. AS13335 US
104.28.63.95/32 1 Cloudflare, Inc. AS13335 US
104.28.63.96/32 1 Cloudflare, Inc. AS13335 US
104.28.63.97/32 1 Cloudflare, Inc. AS13335 US
104.28.63.122/32 1 Cloudflare, Inc. AS13335 US
104.28.63.123/32 1 Cloudflare, Inc. AS13335 US
104.28.63.124/32 1 Cloudflare, Inc. AS13335 US
104.28.63.125/32 1 Cloudflare, Inc. AS13335 US
104.28.63.126/32 1 Cloudflare, Inc. AS13335 US
104.28.63.87/32 1 Cloudflare, Inc. AS13335 US
104.28.63.86/32 1 Cloudflare, Inc. AS13335 US
104.28.63.85/32 1 Cloudflare, Inc. AS13335 US
104.28.63.73/32 1 Cloudflare, Inc. AS13335 US
104.28.63.72/32 1 Cloudflare, Inc. AS13335 US
104.28.63.71/32 1 Cloudflare, Inc. AS13335 US
104.28.63.70/32 1 Cloudflare, Inc. AS13335 US
104.28.63.69/32 1 Cloudflare, Inc. AS13335 US
104.28.63.68/32 1 Cloudflare, Inc. AS13335 US
104.28.63.67/32 1 Cloudflare, Inc. AS13335 US
104.28.63.66/32 1 Cloudflare, Inc. AS13335 US
104.28.63.65/32 1 Cloudflare, Inc. AS13335 US
104.28.63.74/32 1 Cloudflare, Inc. AS13335 US
104.28.63.75/32 1 Cloudflare, Inc. AS13335 US
104.28.63.84/32 1 Cloudflare, Inc. AS13335 US
104.28.63.83/32 1 Cloudflare, Inc. AS13335 US
104.28.63.82/32 1 Cloudflare, Inc. AS13335 US
104.28.63.81/32 1 Cloudflare, Inc. AS13335 US
104.28.63.80/32 1 Cloudflare, Inc. AS13335 US
104.28.63.79/32 1 Cloudflare, Inc. AS13335 US
104.28.63.78/32 1 Cloudflare, Inc. AS13335 US
104.28.63.77/32 1 Cloudflare, Inc. AS13335 US
104.28.63.76/32 1 Cloudflare, Inc. AS13335 US
104.28.63.64/32 1 Cloudflare, Inc. AS13335 US

All 64 IP addresses in 104.28.63.64/26

Not announced as an exact prefix — covered by the announced supernet 104.28.63.0/24.

Announced prefix
Origin AS
Announcement samples
5,952
Last seen
2026-07-27 09:06:08

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 104.28.63.64/26?

104.28.63.64/26 is a CIDR network block containing 64 IPv4 addresses (from 104.28.63.64 to 104.28.63.127). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 104.28.63.64/26 network?

The 104.28.63.64/26 range is allocated to Cloudflare, Inc. and announced via AS13335 from Brazil.

How many IP addresses are in 104.28.63.64/26?

104.28.63.64/26 contains exactly 64 usable IPv4 addresses. A /26 prefix length means 64 addresses are covered by this single routing entry.

Last updated: 2026-07-27 09:25:31 UTC
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