AS40271 · ip.sfmix.org
AS40271 · operated by SFMIX · 501(c)(12) cooperative

Local content,
local pipes.

AS40271 is an opt-in caching & content cooperative for local eyeball ISPs in the San Francisco Bay Area. We host the caches; you save the transit bill.

Local, sustainable, organic … bits. Now with extra cache.

Read the connection guide → PeeringDB ↗
4content sources
9edge sites
Economytransit pricing
What & why

An off-net cache, run by people you can email.

SFMIX runs caches for the big content sources at our exchange. Local eyeball ISPs peer with AS40271 and pull popular traffic — Google, Apple, Steam, Netskrt — directly off the cache, not from your transit provider.

Cheaper transit Cacheable traffic stops counting against your 95th-percentile bill.
Better for users Lower latency, fewer hops, fatter pipes for big downloads.
Economy pricing Priced like economy IP transit. We're a cooperative, not a profit center.
What's on it

Current content sources

Active caches & private peering across our 9 Bay Area edge sites. More on the way as we shake hands with more content folks.

Google
AS15169

Private peering. Serves Google, YouTube, Maps, Workspace.

All sites Private peering
Apple Edge Cache
AS31128

iCloud, App Store, software updates, Apple TV+.

All sites Edge cache participant
Valve / Steam
AS32590

Steam game downloads & updates.

SCL02SJC01 Steam content cache
Netskrt
eCDN

Specialized streaming-video offload (Netflix, Disney+, etc.).

SCL02SJC01 Streaming edge cache

Run an eyeball ISP in the Bay?

Read the connection guide. Then send us an email. It really is that easy (we promise the BGP part is the hardest bit).

Connection guide →