$ query “AS203898” --type=asn → 1 result(s)
AS203898 · CLOUDFLARENET-UK
Cloudflare Inc
AS203898 is run by Cloudflare Inc and is a hosting stub network, based in the United States since 2015. The system announces 256 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United Kingdom.
Basic Information
- Country
- 🇺🇸 United States
- Category
- Hosting
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- October 08, 2015
- Last Changed
- March 04, 2026
- Last Seen
- September 05, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 1 / 1
- IPv6 Prefixes (raw / aggregated)
- 2 / 2
- IPv4 Addresses
- 256
- Largest IPv4 Prefix
- /24 (256 addresses)
- Largest IPv6 Prefix
- /48
- Geolocated Countries
- 🇬🇧 United Kingdom (512 IPs)
- Prefix Changed
- August 07, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Unclassified
- 1 unclassified BGP neighbor
- Degree
- 3 unique BGP neighbors
- Reach
- 0 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (1 total)
- 185.122.0.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (2 total)
- 2606:54c1:a::/48
- 2606:54c1:c::/48