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CIDR Range

104.28.156.0/26

Addresses
64
64
Sub-ranges
50+
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.

68/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Ranges inside 104.28.156.0/26

CIDRIPsOrganizationASNCountry
104.28.156.32/29 8 Cloudflare, Inc. AS13335 PL
104.28.156.32/29 8 Cloudflare, Inc. AS13335 US
104.28.156.32/29 8 Cloudflare, Inc. AS13335 PL
104.28.156.4/30 4 Cloudflare, Inc. AS13335 AT
104.28.156.12/30 4 Cloudflare, Inc. AS13335 US
104.28.156.12/30 4 Cloudflare, Inc. AS13335 CZ
104.28.156.52/30 4 Cloudflare, Inc. AS13335 SE
104.28.156.40/30 4 Cloudflare, Inc. AS13335 PL
104.28.156.40/30 4 Cloudflare, Inc. AS13335 US
104.28.156.40/30 4 Cloudflare, Inc. AS13335 PL
104.28.156.28/30 4 Cloudflare, Inc. AS13335 US
104.28.156.28/30 4 Cloudflare, Inc. AS13335 DK
104.28.156.28/30 4 Cloudflare, Inc. AS13335 DK
104.28.156.12/30 4 Cloudflare, Inc. AS13335 CZ
104.28.156.52/30 4 Cloudflare, Inc. AS13335 US
104.28.156.8/30 4 Cloudflare, Inc. AS13335 US
104.28.156.8/30 4 Cloudflare, Inc. AS13335 AT
104.28.156.4/30 4 Cloudflare, Inc. AS13335 AT
104.28.156.4/30 4 Cloudflare, Inc. AS13335 US
104.28.156.52/30 4 Cloudflare, Inc. AS13335 SE
104.28.156.8/30 4 Cloudflare, Inc. AS13335 AT
104.28.156.48/31 2 Cloudflare, Inc. AS13335 NO
104.28.156.24/31 2 Cloudflare, Inc. AS13335 DE
104.28.156.24/31 2 Cloudflare, Inc. AS13335 US
104.28.156.26/31 2 Cloudflare, Inc. AS13335 DK
104.28.156.26/31 2 Cloudflare, Inc. AS13335 US
104.28.156.26/31 2 Cloudflare, Inc. AS13335 DK
104.28.156.48/31 2 Cloudflare, Inc. AS13335 US
104.28.156.48/31 2 Cloudflare, Inc. AS13335 NO
104.28.156.56/31 2 Cloudflare, Inc. AS13335 SE
104.28.156.46/31 2 Cloudflare, Inc. AS13335 NO
104.28.156.46/31 2 Cloudflare, Inc. AS13335 US
104.28.156.46/31 2 Cloudflare, Inc. AS13335 NO
104.28.156.50/31 2 Cloudflare, Inc. AS13335 SE
104.28.156.56/31 2 Cloudflare, Inc. AS13335 US
104.28.156.56/31 2 Cloudflare, Inc. AS13335 SE
104.28.156.60/31 2 Cloudflare, Inc. AS13335 US
104.28.156.60/31 2 Cloudflare, Inc. AS13335 UA
104.28.156.16/31 2 Cloudflare, Inc. AS13335 CZ
104.28.156.16/31 2 Cloudflare, Inc. AS13335 US
104.28.156.16/31 2 Cloudflare, Inc. AS13335 CZ
104.28.156.2/31 2 Cloudflare, Inc. AS13335 US
104.28.156.2/31 2 Cloudflare, Inc. AS13335 DE
104.28.156.2/31 2 Cloudflare, Inc. AS13335 DE
104.28.156.60/31 2 Cloudflare, Inc. AS13335 UA
104.28.156.24/31 2 Cloudflare, Inc. AS13335 DE
104.28.156.50/31 2 Cloudflare, Inc. AS13335 SE
104.28.156.20/31 2 Cloudflare, Inc. AS13335 HU
104.28.156.20/31 2 Cloudflare, Inc. AS13335 US
104.28.156.20/31 2 Cloudflare, Inc. AS13335 HU

Geolocation

All 64 IP addresses in 104.28.156.0/26

Not announced as an exact prefix — covered by the announced supernet 104.28.156.0/24.

Announced prefix
Origin AS
Announcement samples
5,482
Last seen
2026-07-23 12:37:25

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 104.28.156.0/26?

104.28.156.0/26 is a CIDR network block containing 64 IPv4 addresses (from 104.28.156.0 to 104.28.156.63). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 104.28.156.0/26 network?

The 104.28.156.0/26 range is allocated to Cloudflare, Inc. and announced via AS13335 from Ukraine.

How many IP addresses are in 104.28.156.0/26?

104.28.156.0/26 contains exactly 64 usable IPv4 addresses. A /26 prefix length means 64 addresses are covered by this single routing entry.

Last updated: 2026-07-23 13:25:31 UTC
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