asn.dev

Autonomous system

AS209242 CLOUDFLARESPECTRUM Cloudflare, Inc.

Hosting RIPE

IPv4 addresses 96.77K 233 prefixes
IPv6 prefixes 21 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Cloudflare, Inc. (Cloudflare London)

Global · AI-generated

cloud cdn edge

One of Cloudflare's Autonomous Systems, registered to Cloudflare London, LLC and carrying the handle CLOUDFLARESPECTRUM. It rides on Cloudflare's global edge but is used for Spectrum and BYOIP (Bring Your Own IP) customer traffic rather than the core CDN address pool.

What it's used for

  • Announcing customer-brought IP ranges and Spectrum (generic TCP/UDP proxy) services that sit behind Cloudflare's edge network.

Notable

  • Cloudflare's primary network is AS13335, which this ASN peers from as an upstream. An IP here is on Cloudflare's edge but may front a specific customer's BYOIP ranges.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13335Cloudflare, Inc.17,688

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 233 prefixes · 96.77K addresses IPv6 21 prefixes

CountryNamePrefixes
USUnited States of America254

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS209242
Registry name
CLOUDFLARESPECTRUM
Registrant
MNT-CLOUDFLARE
Abuse contact
abuse@cloudflare.com
Registered
2019-03-13
Last changed
2019-06-20
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Cloudflare London
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Website
https://www.cloudflare.com/

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
54% valid · 157 valid, 135 with no ROA
ROAs
262 authorising AS209242
ASPA
1 declared providers
IRR
98% registered · 287 of 292 announcements 3 other origin
Route objects
521 naming AS209242

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 445 networks and 1,817 prefixes, as published 2026-10-27. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check