Seattle Internet Exchange (MTU 9000) - SIX Seattle (Jumbo)

United States of America

City: Seattle
Website: https://www.seattleix.net/

About this IXP

Data last updated November 2025

Capacity at this IXP

3,108 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 Seattle Internet Exchange (MTU 9000) - SIX Seattle (Jumbo) as shown in PeeringDB in November 2025

Members of this IXP

ASNs (autonomous system numbers) are listed in PeeringDB

In the last 12 months

ASNs left8
New ASNs joined15

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: November 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: 54
Canada: 5
Germany: 1
Hong Kong: 1
South Korea: 1

View all countries of registration

Netherlands: 1
Taiwan: 1
Australia: 1
South Africa: 1
China: 1

Types of network at this IXP

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

NSP: 17
Educational/Research: 14
Unknown: 14
Cable/DSL/ISP: 10
Content: 8

View all network types

Route Server: 1
Enterprise: 1
Network Services: 1
Non-Profit: 1

Members peering at the route server

43 / 67

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

60 / 67

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 Seattle Internet Exchange (MTU 9000) - SIX Seattle (Jumbo)

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

Name	AS Number	Peering policy	RPKI Enabled
PureVoltage Autonomous system (AS) number: 971 Type of AS: NSP 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: 3	971	Unknown	Yes
Rackdog Autonomous system (AS) number: 398465 Type of AS: Cable/DSL/ISP 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: 12	398465	Open	Yes
Rainier Connect Autonomous system (AS) number: 20394 Type of AS: NSP Peering policy: Unknown 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: 3	20394	Unknown	Yes
ROUTE64.ORG Autonomous system (AS) number: 212895 Type of AS: NSP Peering policy: Open Port speed: 1 Gbps Does this member peer at the route server?: Yes Country of registration: Germany Total peering locations for this AS: 22	212895	Open	Yes
ServerForge LLC NA Autonomous system (AS) number: 23428 Type of AS: Educational/Research 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: 8	23428	Unknown	Yes
Servikus Autonomous system (AS) number: 54566 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: 3	54566	Unknown	Yes
SIX Seattle Route Servers Autonomous system (AS) number: 33108 Type of AS: Route Server Peering policy: Unknown Speed: Unknown Does this member peer at the route server?: No Country of registration: United States of America Total peering locations for this AS: 2	33108	Unknown	No
Society of Young Enterprise Engineers Autonomous system (AS) number: 25944 Type of AS: Educational/Research 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	25944	Unknown	Yes
Sprint - AS1239 Autonomous system (AS) number: 1239 Type of AS: NSP Peering policy: Unknown 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: 3	1239	Unknown	No
Tianhai Global Network Autonomous system (AS) number: 4842 Type of AS: Peering policy: Unknown Port speed: 1 Gbps Does this member peer at the route server?: Yes Country of registration: China Total peering locations for this AS: 6	4842	Unknown	Yes
TSS-NET Autonomous system (AS) number: 3657 Type of AS: Cable/DSL/ISP Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: No Country of registration: United States of America Total peering locations for this AS: 2	3657	Unknown	Yes
Twitter, Inc. Autonomous system (AS) number: 13414 Type of AS: Content Peering policy: Selective Port speed: 20 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 19	13414	Selective	Yes
UCAID Autonomous system (AS) number: 11537 Type of AS: Educational/Research Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: No Country of registration: United States of America Total peering locations for this AS: 2	11537	Unknown	Yes
Webpass Autonomous system (AS) number: 19165 Type of AS: Cable/DSL/ISP 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: 7	19165	Open	Yes
WindWave Communications Autonomous system (AS) number: 36222 Type of AS: NSP 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: 3	36222	Unknown	Yes
Wowrack.com Autonomous system (AS) number: 23033 Type of AS: Content Peering policy: Unknown Port speed: 40 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 2	23033	Unknown	Yes
XMission Autonomous system (AS) number: 6315 Type of AS: Cable/DSL/ISP 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: 6	6315	Unknown	Yes
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