Seattle Internet Exchange (MTU 1500) - SIX Seattle

United States of America

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

About this IXP

Data last updated December 2025

Capacity at this IXP

24,904 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 December 2025

Members of this IXP

370

ASNs (autonomous system numbers) are listed in PeeringDB

In the last 12 months

  • ASNs left28
  • New ASNs joined12

Participates in the MANRS IXP program

No

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

No

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: 275
  • Canada: 36
  • United Kingdom: 12
  • Australia: 6
  • Netherlands: 5
View all countries of registration
  • Hong Kong: 4
  • South Korea: 4
  • France: 3
  • New Zealand: 2
  • Singapore: 2
  • Germany: 2
  • Switzerland: 2
  • Philippines: 2
  • Indonesia: 2
  • Japan: 2
  • Israel: 1
  • Taiwan: 1
  • Luxembourg: 1
  • Estonia: 1
  • Belgium: 1
  • Romania: 1
  • Guam: 1
  • South Africa: 1
  • China: 1
  • Czechia: 1
  • Sweden: 1

Types of network at this IXP

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

  • NSP: 102
  • Cable/DSL/ISP: 98
  • Content: 74
  • Unknown: 32
  • Educational/Research: 26
View all network types
  • Enterprise: 15
  • Non-Profit: 11
  • Network Services: 9
  • Government: 2
  • Route Server: 1

Members peering at the route server

264 / 370

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 / 370

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 December 2025

Name AS Number Peering policy RPKI Enabled
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: 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
 395466 Unknown Yes
Global Secure Layer
  • Autonomous system (AS) number: 137409
  • Type of AS: NSP
  • Peering policy: Unknown
  • 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 Unknown 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: 31
 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: 11
 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: 197
 15169 Selective Yes
Gorge Networks
  • Autonomous system (AS) number: 11233
  • Type of AS: Cable/DSL/ISP
  • 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: 2
 11233 Unknown Yes
GTA/Teleguam Holdings, LLC
  • Autonomous system (AS) number: 9246
  • 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: Guam
  • Total peering locations for this AS: 5
 9246 Unknown 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: 16
 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: 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: 4
 36149 Unknown 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: 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: 3
 216440 Unknown Yes
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?: No
  • Country of registration: United States of America
  • Total peering locations for this AS: 1
 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
HostingFuze Network
  • Autonomous system (AS) number: 41732
  • Type of AS: Non-Profit
  • Peering policy: Unknown
  • Port speed: 1 Gbps
  • Does this member peer at the route server?: Yes
  • Country of registration: Romania
  • Total peering locations for this AS: 10
 41732 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
Hoyos Consulting
  • Autonomous system (AS) number: 53597
  • 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: 12
 53597 Unknown Yes
Hunter Communications
  • Autonomous system (AS) number: 36012
  • Type of AS: NSP
  • 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: 5
 36012 Unknown Yes