CoreSite - Chicago (CH1)
Internet ExchangeChicago, IL · CoreSite
At a glance
CoreSite - Chicago (CH1) is a colocation and interconnection facility listed in PeeringDB, located at 427 S. LaSalle, Chicago, IL 60605. It is operated by CoreSite. 71 networks are present at CoreSite - Chicago (CH1) according to PeeringDB, ranking it 29th of 1,390 US facilities by network count. It hosts 6 internet exchanges (public peering fabrics).
How many networks and carriers are at CoreSite - Chicago (CH1)?
71 networks are present at CoreSite - Chicago (CH1) according to PeeringDB, ranking it 29th of 1,390 US facilities by network count. Within Illinois it ranks 3rd of 71 facilities. That is about 36 times the Illinois median of 2 networks per facility (national median: 2). 6 internet exchanges have switching equipment in the building, so networks can peer publicly as well as by private cross-connect.
Who operates CoreSite - Chicago (CH1)?
PeeringDB lists CoreSite as the operator of CoreSite - Chicago (CH1). CoreSite has 28 facilities in the GridCensus catalog across 10 states, 2 of them in Illinois.
Where is CoreSite - Chicago (CH1) located?
The facility's address is 427 S. LaSalle, Chicago, IL 60605. Chicago has 26 PeeringDB interconnection facilities in the catalog. Illinois has 71 of the 1,390 US facilities; the best-connected has 329 networks present.
What datacenters and sites are near CoreSite - Chicago (CH1)?
5 datacenters are listed in the surrounding area (the largest by footprint); of those, the closest is Microsoft - Azure Datacenter, operated by Microsoft, about 15 miles away. The highest-scoring datacenter candidate site in the surrounding area is UNKNOWN122269 in Cook County, with a DC Readiness score of 70.3 out of 100.
Other exchanges in Chicago
- Equinix CH1/CH2/CH4 - Chicago329 networks
- Digital Realty CHI (350 E Cermak)97 networks
- Netrality Chicago - 717 S Wells22 networks
- 365 Data Centers Chicago (CH6)21 networks
- Northwestern University co-location facility20 networks
- SBA Edge, LLC15 networks
Nearby datacenters
- Digital Realty CH1Digital Realty · Elk Grove Village, IL
- Centersquare Lisle ORD4 Data CenterCentersquare · Lisle, IL
- Digital Realty CH3Digital Realty · Elk Grove Village, IL
- Microsoft - Azure DatacenterMicrosoft · Northlake, IL
- Digital Realty CH2Digital Realty · Elk Grove Village, IL
Nearby datacenter candidate sites
Scored candidate sites near CoreSite - Chicago (CH1), 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN122269 | Substation-Adjacent | IL | Cook County | 345 kV | 600 MW | 4.8 yrs | 70.3 |
| UNKNOWN124436 | Substation-Adjacent | IL | Cook County | 345 kV | 600 MW | 4.8 yrs | 69.3 |
| UNKNOWN122285 | Substation-Adjacent | IL | Cook County | 345 kV | 600 MW | 4.8 yrs | 67.6 |
| UNKNOWN122531 | Substation-Adjacent | IN | Cook County | 345 kV | 600 MW | 3.0 yrs | 65.9 |
| SHEFFIELD | Substation-Adjacent | IN | Lake County | 345 kV | 600 MW | 3.0 yrs | 65.6 |
| UNKNOWN122523 | Substation-Adjacent | IN | Lake County | 345 kV | 600 MW | 3.0 yrs | 65.6 |
| MUNSTER | Substation-Adjacent | IN | Lake County | 345 kV | 600 MW | 3.0 yrs | 65.4 |
| UNKNOWN124699 | Substation-Adjacent | IL | Cook County | 345 kV | 600 MW | 4.8 yrs | 65.2 |
Frequently asked questions
Who owns or operates CoreSite - Chicago (CH1)?
CoreSite - Chicago (CH1) is operated by CoreSite, according to its PeeringDB facility record. CoreSite has 28 US facilities in the GridCensus catalog across 10 states.
What is the address of CoreSite - Chicago (CH1)?
CoreSite - Chicago (CH1) is at 427 S. LaSalle, Chicago, IL 60605. Coordinates: 41.8762, -87.6315.
How many networks and carriers are at CoreSite - Chicago (CH1)?
71 networks are present at CoreSite - Chicago (CH1) according to PeeringDB, ranking it 29th of 1,390 US facilities by network count. The median Illinois facility has 2 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 CoreSite - Chicago (CH1)?
Yes. PeeringDB records 6 internet exchanges with a presence at CoreSite - Chicago (CH1).
Which datacenters are near CoreSite - Chicago (CH1)?
Large datacenters catalogued near CoreSite - Chicago (CH1) include Microsoft - Azure Datacenter (Microsoft), 15 miles away; Digital Realty CH2 (Digital Realty), 19 miles away; Digital Realty CH1 (Digital Realty), 19 miles away.
More interconnection facilities and hubs in Illinois
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, “CoreSite - Chicago (CH1), Chicago, IL”, https://gridcensus.com/internet-exchanges/coresite-chicago-ch1-266f6be3 (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 CoreSite - Chicago (CH1), Chicago, IL 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.