Seattle Internet Exchange (MTU 1500) - SIX Seattle

United States of America

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

About this IXP

Data last updated April 2026

Capacity at this IXP

26,735 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 1500) - SIX Seattle as shown in PeeringDB in April 2026

Members of this IXP

368

ASNs (autonomous system numbers) are listed in PeeringDB

In the last 12 months

ASNs left25
New ASNs joined18

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: April 2026

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: 272
Canada: 36
United Kingdom: 10
Australia: 6
Netherlands: 5

View all countries of registration

Hong Kong: 4
South Korea: 4
France: 3
Singapore: 3
Indonesia: 2
New Zealand: 2
Germany: 2
Switzerland: 2
Japan: 2
Philippines: 2
Luxembourg: 1
Estonia: 1
Isle of Man: 1
South Africa: 1
Israel: 1
Seychelles: 1
Guam: 1
Saudi Arabia: 1
China: 1
Czechia: 1
Sweden: 1
Belgium: 1
Taiwan: 1

Types of network at this IXP

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

NSP: 103
Cable/DSL/ISP: 98
Content: 72
Unknown: 31
Educational/Research: 26

View all network types

Enterprise: 16
Non-Profit: 10
Network Services: 9
Government: 2
Route Server: 1

Members peering at the route server

263 / 368

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

297 / 368

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 1500) - SIX Seattle

This list uses the data available in PeeringDB, which is based on self-reported data, and was last updated in Pulse April 2026

Name	AS Number	Peering policy	RPKI Enabled
General Communications Incorp Autonomous system (AS) number: 8047 Type of AS: NSP Peering policy: Unknown Port speed: 600 Gbps Does this member peer at the route server?: Yes Country of registration: United States of America Total peering locations for this AS: 1	8047	Unknown	Yes
GENESIS TECHNOLOGY COMMUNICATION Autonomous system (AS) number: 30032 Type of AS: 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: 6	30032	Unknown	No
GFiber \| 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
GitHub, Inc. Autonomous system (AS) number: 36459 Type of AS: Content 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	36459	Unknown	Yes
Global Net Autonomous system (AS) number: 395466 Type of AS: Cable/DSL/ISP Peering policy: Selective 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	395466	Selective	Yes
Global Secure Layer Autonomous system (AS) number: 137409 Type of AS: NSP Peering policy: Open Port speed: 100 Gbps Does this member peer at the route server?: Yes Country of registration: Australia Total peering locations for this AS: 74	137409	Open	Yes
Globe Telecom Autonomous system (AS) number: 4775 Type of AS: NSP Peering policy: Unknown Port speed: 10 Gbps Does this member peer at the route server?: Yes Country of registration: Philippines Total peering locations for this AS: 32	4775	Unknown	Yes
GMCHOSTING Autonomous system (AS) number: 19186 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	19186	Unknown	Yes
GoCodeIT AS835 Autonomous system (AS) number: 835 Type of AS: Peering policy: Open Port speed: 10 Gbps Does this member peer at the route server?: No Country of registration: Canada Total peering locations for this AS: 10	835	Open	Yes
GoDaddy Autonomous system (AS) number: 26496 Type of AS: Content Peering policy: Selective 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: 4	26496	Selective	Yes
GoldKey Autonomous system (AS) number: 393968 Type of AS: 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	393968	Unknown	No
Google LLC Autonomous system (AS) number: 15169 Type of AS: Content 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: 180	15169	Selective	Yes
Gorge Networks Autonomous system (AS) number: 11233 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: 2	11233	Open	Yes
GTA/Teleguam Holdings, LLC Autonomous system (AS) number: 9246 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: Guam Total peering locations for this AS: 4	9246	Open	Yes
GTHost Autonomous system (AS) number: 63023 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: 18	63023	Open	Yes
GVVME Autonomous system (AS) number: 12186 Type of AS: 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	12186	Unknown	Yes
Haruue Network Limited Autonomous system (AS) number: 146950 Type of AS: Educational/Research Peering policy: Unknown Port speed: 1 Gbps Does this member peer at the route server?: Yes Country of registration: Hong Kong Total peering locations for this AS: 5	146950	Unknown	Yes
Hawaiian Telcom Autonomous system (AS) number: 36149 Type of AS: Cable/DSL/ISP Peering policy: Selective 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	36149	Selective	No
HighEndNetwork Autonomous system (AS) number: 203283 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: 1	203283	Unknown	No
Hivelocity LLC Autonomous system (AS) number: 29802 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: 14	29802	Open	Yes
HOOP7NETWORK Autonomous system (AS) number: 216440 Type of AS: Network Services Peering policy: Selective 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	216440	Selective	No
Hoplite Industries, Inc. Autonomous system (AS) number: 395657 Type of AS: Network Services Peering policy: Open 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: 2	395657	Open	Yes
HopOne Internet Corp. Autonomous system (AS) number: 14361 Type of AS: NSP 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: 5	14361	Unknown	No
Host Universal Autonomous system (AS) number: 136557 Type of AS: NSP 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: 21	136557	Unknown	Yes
Hostwinds Autonomous system (AS) number: 54290 Type of AS: Content 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	54290	Unknown	No
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