US-IL · United States

Illinois data centers and internet exchanges

PeeringDB's 2026-09-07 snapshot records 71 colocation facilities in Illinois (US-IL) holding 823 network presences, concentrated in Chicago, and 13 internet exchanges, the largest being Equinix Chicago.

Facilities
71
Exchanges
13
Snapshot
2026-09-07
Country
United States (US)
Subdivision code
US-IL
Colocation facilities
71
Network presences
823
Internet exchanges
13 (475 participants)
Largest exchange
Equinix Chicago, Chicago
Main facility city
Chicago
Cities with facilities
19
Snapshot
2026-09-07

The 2026-09-07 PeeringDB snapshot records 13 exchanges and 71 facilities in Illinois, United States. Their entries sum to 475 exchange participants and 823 facility network presences; the same network can appear more than once.

Internet exchanges in Illinois

Exchanges are attributed to the state through the city they sit in, because PeeringDB records a state for facilities but not for exchanges.
Internet exchanges in Illinois
ExchangeCityParticipants
Equinix ChicagoChicago254
DE-CIX ChicagoChicago83
ChIXChicago64
Any2ChicagoChicago16
BGP.Exchange - ChicagoChicago16
MegaIX ChicagoChicago12
Chicago Open PipesChicago8
Digital Realty ChicagoChicago7
DACS-IX CentralChicago7
FD-IX - ChicagoChicago4

Showing the 10 exchanges with the most participants, of 13 recorded.

Colocation facilities in Illinois

Buildings where networks put equipment. The network count is how many PeeringDB members list a presence there.
Colocation facilities in Illinois
FacilityCityNetworks present
Equinix CH1/CH2/CH4 - ChicagoChicago334
Digital Realty CHI (350 E Cermak)Chicago100
CoreSite - Chicago (CH1)Chicago74
Equinix CH3 - Elk GroveElk Grove Village44
Netrality Chicago - 717 S WellsChicago22
Northwestern University co-location facilityChicago20
365 Data Centers Chicago (CH6)Chicago19
Digital Realty CH1 - ChicagoElk Grove Village18
SBA Edge, LLCChicago16
Level(3) Chicago (Kingsbury)Chicago15
CoreSite - Chicago (CH2)Chicago15
QTS Chicago (CHI1)Chicago14
TierPoint Chicago - PolkChicago9
CyrusOne Aurora IAurora9
Centersquare Chicago (ORD2)Elk Grove Village8

Showing the 15 facilities with the most networks, of 71 recorded.

What these records establish

This page groups the saved exchange and facility records for Illinois. A sum of participant or facility counts is not a count of unique networks, traffic volume, available capacity or service coverage.

PeeringDB is user-maintained. Its records describe reported interconnection infrastructure; they do not trace a particular request or locate a subscriber. A missing record in this snapshot is not proof that an operator has no presence or private connection in the area.

An IP geolocation result is a separate estimate. MaxMind documents accuracy limits and explains that its location data cannot identify a specific household, person or street address. This registry does not perform a geolocation lookup or measure where an individual device is located.

Mobile carriers in the United States

These selected carrier records provide ASN references for further checks. They do not establish a subscriber’s location or regional coverage.

Questions

How many exchanges and facilities are recorded in Illinois?
13 exchanges and 71 facilities appear in the 2026-09-07 snapshot. The tables show the saved records and link to the publisher for current details.
Are the totals unique networks?
No. Participant entries are summed across exchanges and network presences across facilities. A network listed at several locations contributes to several entries.
Does a Illinois IP label prove that a device is there?
No. These infrastructure records do not establish a device location. Consult the geolocation provider’s accuracy information and the specific network record for the claim you are evaluating.

Sources

PeeringDB supplies the facilities, network presence and exchange participants (snapshot 2026-09-07); MaxMind documents the limits of IP geolocation; the PROXIES.SX carrier registry lists the operators routing mobile addresses in this country.

  1. [1]https://www.peeringdb.com/
  2. [2]https://support.maxmind.com/knowledge-base/articles/maxmind-geolocation-accuracy
  3. [3]https://www.proxies.sx/carriers

These records describe where networks house equipment and interconnect. An IP address that geolocates to Illinois does not show that a device is there: mobile carriers route wide areas through shared gateways, and geolocation databases estimate from registration data.