Colocation Northwest - Seattle
Internet ExchangeSeattle, WA · IsoFusion / Colocation Northwest
At a glance
Colocation Northwest - Seattle is a colocation and interconnection facility listed in PeeringDB, located at 2001 6th Ave, Seattle, WA 98121. It is operated by IsoFusion / Colocation Northwest. 9 networks are present at Colocation Northwest - Seattle according to PeeringDB, ranking it 231st of 1,390 US facilities by network count.
Peering & carrier density
How many networks and carriers are at Colocation Northwest - Seattle?
9 networks are present at Colocation Northwest - Seattle according to PeeringDB, ranking it 231st of 1,390 US facilities by network count. Within Washington it ranks 12th of 49 facilities. That is about 2.3 times the Washington median of 4 networks per facility (national median: 2).
Who operates Colocation Northwest - Seattle?
PeeringDB lists IsoFusion / Colocation Northwest as the operator of Colocation Northwest - Seattle. IsoFusion / Colocation Northwest has 5 facilities in the GridCensus catalog across 1 state, 5 of them in Washington.
Where is Colocation Northwest - Seattle located?
The facility's address is 2001 6th Ave, Seattle, WA 98121. Seattle has 18 PeeringDB interconnection facilities in the catalog. Washington has 49 of the 1,390 US facilities; the best-connected has 234 networks present.
What datacenters and sites are near Colocation Northwest - Seattle?
5 datacenters are listed in the surrounding area (the largest by footprint); of those, the closest is Intergate Seattle East Building 3, operated by Sabey, about 8.6 miles away. The highest-scoring datacenter candidate site in the surrounding area is MAPLE VALLEY in King County, with a DC Readiness score of 68.4 out of 100.
Other exchanges in Seattle
- Digital Realty Seattle SEA10234 networks
- Equinix SE2/SE3 - Seattle110 networks
- KOMO Plaza Seattle (Formerly Fisher Plaza)21 networks
- H5 Data Centers Seattle10 networks
- Evocative SEA110 networks
- Digital Fortress (SEA)8 networks
Nearby datacenters
- CenterisWA
- Intergate Seattle East Building 3Sabey · Tukwila, WA
- Intergate Seattle East Building 5Sabey · Tukwila, WA
- Intergate Seattle East Building 4Digital Realty · Tukwila, WA
- Centeris SH1 ColocationPuyallup, WA
Nearby datacenter candidate sites
Scored candidate sites near Colocation Northwest - Seattle, ranked by DC Readiness. Co-location near a well-peered exchange is a meaningful fiber-connectivity advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| MAPLE VALLEY | Substation-Adjacent | WA | King County | 500 kV | 1,000 MW | 3.5 yrs | 68.4 |
| SNO-KING | Substation-Adjacent | WA | Kitsap County | 500 kV | 1,000 MW | 3.5 yrs | 68.2 |
| COVINGTON | Substation-Adjacent | WA | King County | 500 kV | 1,000 MW | 3.5 yrs | 68.2 |
| SNOHOMISH | Substation-Adjacent | WA | Snohomish County | 345 kV | 600 MW | 3.5 yrs | 66.5 |
| OBRIEN | Substation-Adjacent | WA | King County | 230 kV | 300 MW | 3.5 yrs | 65.2 |
| BOTHELL | Substation-Adjacent | WA | Snohomish County | 230 kV | 300 MW | 3.5 yrs | 64.8 |
| OZ King | Greenfield | WA | King | — | — | 3.5 yrs | 64.6 |
| TAP206030 | Substation-Adjacent | WA | Snohomish County | 230 kV | 300 MW | 3.5 yrs | 64.5 |
Frequently asked questions
Who owns or operates Colocation Northwest - Seattle?
Colocation Northwest - Seattle is operated by IsoFusion / Colocation Northwest, according to its PeeringDB facility record. IsoFusion / Colocation Northwest has 5 US facilities in the GridCensus catalog across 1 state.
What is the address of Colocation Northwest - Seattle?
Colocation Northwest - Seattle is at 2001 6th Ave, Seattle, WA 98121. Coordinates: 47.6143, -122.3389.
How many networks and carriers are at Colocation Northwest - Seattle?
9 networks are present at Colocation Northwest - Seattle according to PeeringDB, ranking it 231st of 1,390 US facilities by network count. The median Washington facility has 4 networks present. PeeringDB counts every network (carriers, ISPs, cloud and content networks) that lists the facility as a point of presence.
Is there an internet exchange at Colocation Northwest - Seattle?
PeeringDB records no internet exchange fabric at Colocation Northwest - Seattle.
Which datacenters are near Colocation Northwest - Seattle?
Large datacenters catalogued near Colocation Northwest - Seattle include Intergate Seattle East Building 3 (Sabey), 8.6 miles away; Intergate Seattle East Building 4 (Digital Realty), 8.7 miles away; Intergate Seattle East Building 5 (Sabey), 8.8 miles away.
More interconnection facilities and hubs in Washington
- All internet exchange facilities in Washington· 49 facilities
- IsoFusion / Colocation Northwest — company profile· 5 facilities
- Datacenters in Washington
- Colocation Northwest - Tacoma· Tacoma · 4 networks
- Colocation Northwest - South Hill· Puyallup · 3 networks
- Colocation Northwest - Bellevue· Bellevue · 2 networks
- Colocation Northwest - Redmond· Redmond · 2 networks
- All US internet exchange facilities
- All US datacenters
About this data
Source: PeeringDB facility records, as published March 6, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Colocation Northwest - Seattle, Seattle, WA”, https://gridcensus.com/internet-exchanges/colocation-northwest-seattle-45958575 (data as of March 6, 2026).
Dataset updated . Screening estimates derived from public data sources.
Network and exchange counts are point-in-time figures from PeeringDB and may lag changes at the facility.
Go deeper than the public screen
Every site and score for Colocation Northwest - Seattle, Seattle, WA is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.