Fastly IP Ranges
Fastly is an edge cloud platform providing CDN, streaming, and security services. It powers major media, e-commerce, and software delivery networks including GitHub, Reddit, and large streaming platforms.
- Provider
- Fastly
- Primary ASN
- AS54113
- Category
- CDN
- Headquarters
- San Francisco, CA, USA
Known IP ranges
The following IP prefixes are registered to Fastly or commonly associated with their network. Full prefix sets change over time — use WHOIS Lookup for the authoritative current record for any specific IP.
23.235.32.0/20
43.249.72.0/22
103.244.50.0/24
151.101.0.0/16
157.52.64.0/18
185.31.16.0/22
What does a Fastly IP mean in a privacy test?
A Fastly IP in a test typically means your request reached a Fastly edge node serving a website. Fastly is a CDN, not a VPN. Its IPs appear when browsing Fastly-served content, not as VPN exit nodes.
Related tools
Frequently asked questions
What IP ranges does Fastly use?
Fastly operates ranges including 23.235.32.0/20, 43.249.72.0/22, 103.244.50.0/24, and 151.101.0.0/16. Fastly publishes its own public IP list in its developer documentation, updated as the network expands.
Why does a Fastly IP appear in a network test?
Fastly IPs appear when you access a website using Fastly as its CDN. The nearest Fastly edge server handles the content request. This is expected and does not indicate a VPN leak.
Does Fastly affect VPN privacy?
Fastly is a CDN, not a privacy tool. Your VPN still protects your real IP when browsing Fastly-served sites. The Fastly server sees your VPN exit IP, not your real IP.
How do I look up a Fastly IP address?
Use MyIPScan IP Geolocation Lookup. Fastly IPs return AS54113 (Fastly Inc.) with the PoP location. Fastly has PoPs in dozens of cities globally.
What ASN does Fastly use?
Fastly primarily uses AS54113. Query RIPE, ARIN, or MyIPScan WHOIS Lookup for all IP prefixes announced under this ASN.