Data Center Registry

Cogent Boston Data Center (Waltham)

Waltham, Middlesex County, Massachusetts · All 21 Cogent Communications sites

OperatingNo reception on recordRecord updated October 24, 2026

Cogent Boston Data Center (Waltham) is an operating data center in Waltham, Massachusetts (Middlesex County), operated by Cogent Communications.

Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.

Facility record

Operating

Operator: Cogent Communications
Facility type: Data center
Location: 100 Fifth Ave, Ste 1030, Waltham, Middlesex County, MA, 02451
Coordinates: 42.3932, -71.2557 (approximate)
Power capacity: Not established from a public source
Land: Not established from a public source
Investment: Not established from a public source
Announced: Not established from a public source
Utility: Not established from a public source
Cooling: Not established from a public source
Water use: Not established from a public source
Jobs: Not established from a public source
Public subsidy: Not established from a public source
Community reception: No reception on record
Source confidence: Confirmed by multiple independent sources or official documentation

Timeline from the record

Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.

October 24, 2026
Operating
Listed as an active Cogent data center on the operator page and PeeringDB. Source: Cogent Communications

Opposition and litigation at this site

Nothing on record as of October 24, 2026. No lawsuit, organized opposition, or contested hearing over Cogent Boston Data Center (Waltham) in Waltham, Middlesex County, Massachusetts appears in the sources this registry tracks. That is an absence in our sources rather than a finding that none exists, and local opposition often predates any coverage a national dataset would pick up.

If you live near this site and something is happening that this page does not show, that is worth telling us. Send us the document and it goes in the record with the source attached. For sites where opposition is already established, see every contested site we track.

Notes on the record

A small colocation suite of 8,400 sq ft with UPS and backup generator. The operator gives no MW figure.

What the record does not establish, and the document that would

In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.

Power capacity in megawatts
Cooling method and water use
Tax abatements or other public subsidy
Permanent jobs promised
Land area
How the community has received it
Which utility serves it

Which document closes each gap

Power capacity in megawatts: The utility's large load service agreement, the interconnection request in the grid operator's queue, or the electrical site plan in the permit file.
Cooling method and water use: The water service agreement, any groundwater appropriation permit, and the mechanical narrative in the site plan.
Tax abatements or other public subsidy: The abatement, PILOT, or development agreement approved by the county, city, or development authority, and the state's data center sales tax exemption certificate if one was issued.
Permanent jobs promised: The economic development application or incentive agreement, which usually states a job commitment and a clawback.
Land area: The rezoning application, the plat, or the deed recorded with the county.
How the community has received it: Planning commission and governing body minutes, public comment records, and any petition or lawsuit filed in the county.
Which utility serves it: The electric service agreement or the utility's filing with the state public utility commission.

Have one of these documents? Send it to us and we will add it to the record with attribution.

Other sites within 30 miles

Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.

Csquare BOS1 (Waltham) · Waltham · Csquare (formerly Centersquare)under 1 mile · Operating
Equinix BO1 · Waltham · Equinixunder 1 mile · Operating
Csquare BOS4 (Watertown) · Watertown · Csquare (formerly Centersquare)5 mi · Operating
Digital Realty BOS14 · Needham · Digital Realty7 mi · Operating
Evocative BOS1 (Somerville) · Somerville · Evocative9 mi · Operating · 6 MW
CoreSite BO1 - Boston, MA · Somerville · CoreSite9 mi · Operating
Expedient Boston · Medford · Expedient9 mi · Operating
EdgeConneX Boston (EDCBOS01) · Billerica · EdgeConneX9 mi · Operating · 4.5 MW

Tell us about your situation

Living near Cogent Boston Data Center (Waltham)?

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Questions people ask about this site

Is there opposition to the Cogent Boston Data Center (Waltham) in Waltham?

Has anyone filed a lawsuit over the Cogent Boston Data Center (Waltham)?

No lawsuit over Cogent Boston Data Center (Waltham) appears in the record we track as of October 24, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.

How much water does Cogent Boston Data Center (Waltham) use?

No water withdrawal figure for Cogent Boston Data Center (Waltham) is on record here. Water use is rarely published voluntarily; it usually surfaces through a utility service agreement or a state withdrawal permit, both of which are public records. We leave the number blank rather than estimate one.

Who operates Cogent Boston Data Center (Waltham), and how big is it?

Cogent Communications is the operator on record. We hold 21 sites for that company across the registry. No capacity figure is on record for this site.

How to cite this page

SueDataCenters.org Data Center Registry, "Cogent Boston Data Center (Waltham)," updated October 24, 2026, https://suedatacenters.org/data-centers/cogent-boston-waltham-ma.

Facility data from Compute Atlas (E. Kubiak), version 1.34.1 (October 4, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/cogent-boston-waltham-ma, retrieved October 29, 2026.

Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.

Sources for this record

As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.

1.Cogent Boston / Springfield data centers page · Cogent Communications · retrieved October 24, 2026
2.PeeringDB facility 10474: Cogent Boston · PeeringDB · retrieved October 24, 2026

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