San Francisco Metropolitan Internet Exchange - SFMIX

United States of America

City: San Francisco
Website: https://sfmix.org/

About this IXP

Data last updated December 2025

Capacity at this IXP

3,451 Gbps

Cumulative port speeds of all IXP members. This shows the potential maximum traffic that can be exchanged at this IXP at one time.

Membership and capacity

The size and strength of an IXP is determined by a combination of how many members it has, and the total capacity. Larger networks tend to bring more capacity, which can benefit all members.

Data for San Francisco Metropolitan Internet Exchange - SFMIX as shown in PeeringDB in December 2025

Members of this IXP

ASNs (autonomous system numbers) are listed in PeeringDB

In the last 12 months

ASNs left11
New ASNs joined1

Participates in the MANRS IXP program

IXPs that join this voluntary program apply a framework of enhanced routing security in peering. It signals an extra commitment to responsible Internet stewardship.

Source: MANRS

RIPE Atlas anchor

Organizations that run IXPs can host anchors to measure Internet connectivity and traffic. An anchor is a large capacity probe often used by IXPs.

Source: RIPEStat

Member information

Last sync from PeeringDB: December 2025

View this IXP on PeeringDB

Countries of registration

A summary of member registrations by country. An IXP with a mixture of international and near-neighbor members can indicate that an IXP is influential, or acts as a hub within its region or sub-region.

United States of America: 68
United Kingdom: 3
Canada: 3
Singapore: 3
Japan: 2

View all countries of registration

Australia: 2
Netherlands: 2
China: 1
Lithuania: 1
Switzerland: 1
New Zealand: 1
Portugal: 1
Sweden: 1
France: 1
Hong Kong: 1

Types of network at this IXP

The mix of members is an indication of a strength or focus of an IXP.

Content: 29
Cable/DSL/ISP: 20
NSP: 17
Enterprise: 7
Non-Profit: 7

View all network types

Unknown: 5
Network Services: 3
Educational/Research: 3

Members peering at the route server

70 / 91

The route server is a central hub that makes it easier for all networks to peer without having to create individual agreements with other members.

Members using RPKI

79 / 91

members at this IXP use Resource Public Key Infrastructure (RPKI), a security measure that helps ensure traffic is routed correctly. A member is counted as using RPKI if they have at least one valid ROA.

Peering policies of IXP members

Members of an IXP can choose how they peer with others. The Internet Society encourages open policies where possible.

Member list for San Francisco Metropolitan Internet Exchange - SFMIX

This list uses the data available in PeeringDB, which is based on self-reported data, and was last updated in Pulse December 2025

Name	AS Number	Peering policy	RPKI Enabled
ACE CDN Autonomous system (AS) number: 139341 Type of AS: Content Peering policy: Open Port speed: 100 Gbps Does this member peer at the route server?: No Country of registration: Singapore Total peering locations for this AS: 105	139341	Open	Yes
AirRabbit, LLC Autonomous system (AS) number: 63129 Type of AS: Cable/DSL/ISP Peering policy: Open Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 1	63129	Open	Yes
Akamai Technologies Autonomous system (AS) number: 20940 Type of AS: Content Peering policy: Open Port speed: 100 Gbps Does this member peer at the route server?: Yes Country of registration: Netherlands Total peering locations for this AS: 230	20940	Open	Yes
Amazon.com Autonomous system (AS) number: 16509 Type of AS: Enterprise Peering policy: Selective Port speed: 200 Gbps Does this member peer at the route server?: No Country of registration: United States of America Total peering locations for this AS: 152	16509	Selective	Yes
Atherton Fiber Autonomous system (AS) number: 53859 Type of AS: Cable/DSL/ISP Peering policy: Unknown Port speed: 20 Gbps Does this member peer at the route server?: No Country of registration: United States of America Total peering locations for this AS: 1	53859	Unknown	Yes
auIX peering ASN Autonomous system (AS) number: 136019 Type of AS: Cable/DSL/ISP Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: Australia Total peering locations for this AS: 1	136019	Unknown	No
Blizzard Entertainment Autonomous system (AS) number: 57976 Type of AS: Content Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 65	57976	Unknown	Yes
BLUE WIRELESS Autonomous system (AS) number: 137182 Type of AS: NSP Peering policy: Open Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: Singapore Total peering locations for this AS: 6	137182	Open	Yes
CacheFly Autonomous system (AS) number: 30081 Type of AS: Content Peering policy: Open Port speed: 100 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 51	30081	Open	Yes
CENTRAL VALLEY INTERNET Autonomous system (AS) number: 399338 Type of AS: Cable/DSL/ISP Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 2	399338	Unknown	Yes
Cloudflare Autonomous system (AS) number: 13335 Type of AS: Content Peering policy: Open Port speed: 100 Gbps Does this member peer at the route server?: No Country of registration: United States of America Total peering locations for this AS: 345	13335	Open	Yes
Cofractal Autonomous system (AS) number: 26073 Type of AS: Peering policy: Open Port speed: 80 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 7	26073	Open	Yes
CoreSite Autonomous system (AS) number: 2734 Type of AS: NSP Peering policy: Open Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 12	2734	Open	Yes
DBolical Pty Ltd Autonomous system (AS) number: 55651 Type of AS: Content Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: Australia Total peering locations for this AS: 2	55651	Unknown	Yes
DigitalMonks LLC Autonomous system (AS) number: 400006 Type of AS: Content Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 4	400006	Unknown	Yes
DigitalOcean Autonomous system (AS) number: 14061 Type of AS: Content Peering policy: Selective Port speed: 200 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 24	14061	Selective	Yes
Digital Realty United States Autonomous system (AS) number: 36086 Type of AS: NSP Peering policy: Unknown Port speed: 1 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 16	36086	Unknown	Yes
DNS-OARC Autonomous system (AS) number: 64238 Type of AS: Non-Profit Peering policy: Unknown Port speed: 1 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 1	64238	Unknown	Yes
EDGOO NETWORKS Autonomous system (AS) number: 6424 Type of AS: NSP Peering policy: Selective Port speed: 100 Gbps Does this member peer at the route server?: Yes Country of registration: Portugal Total peering locations for this AS: 17	6424	Selective	Yes
Energy Group Networks Autonomous system (AS) number: 18779 Type of AS: Enterprise Peering policy: Unknown Port speed: 20 Gbps Does this member peer at the route server?: No Country of registration: United States of America Total peering locations for this AS: 3	18779	Unknown	Yes
Eons Data Autonomous system (AS) number: 138997 Type of AS: NSP Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: Hong Kong Total peering locations for this AS: 11	138997	Unknown	Yes
Etheric Networks Autonomous system (AS) number: 30640 Type of AS: Cable/DSL/ISP Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 3	30640	Unknown	No
Everythink AS397131 Autonomous system (AS) number: 397131 Type of AS: Content Peering policy: Unknown Port speed: 1 Gbps Does this member peer at the route server?: Yes Country of registration: Canada Total peering locations for this AS: 2	397131	Unknown	Yes
Fastly, Inc. Autonomous system (AS) number: 54113 Type of AS: Content Peering policy: Unknown Port speed: 100 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 139	54113	Unknown	Yes
FogNet - iFog GmbH Autonomous system (AS) number: 34927 Type of AS: NSP Peering policy: Open Port speed: 1 Gbps Does this member peer at the route server?: Yes Country of registration: Switzerland Total peering locations for this AS: 49	34927	Open	Yes
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