CH1 occupies the former Western Union Telegraph Building at 427 South LaSalle, in the heart of Chicago's financial district beside the old Board of Trade, converted to data center use from 2007. Its 178,000-plus square feet make it the interconnection anchor of CoreSite's Chicago pair: 73 networks and six exchanges are reachable on-net, among them ChIX, DE-CIX Chicago, QCIX and CoreSite's own Any2Chicago. Electrical options run N, N+1 and 2N across UPS and PDU, with N+1 cooling redundancy, variable-speed CRAHs, chilled water and evaporative condensing units. Proximity matters here - trading and financial customers take space for latency to the exchanges rather than for hall capacity, which is what separates CH1 from the purpose-built CH2 two miles south.
Facility Specifications
Site information
Colocation space
178,000+ sq ft
Uptime SLA
100% uptime SLA
Power & cooling
Redundancy
N, N+1 and 2N options across UPS, PDU and RPP; N+1 cooling redundancy
Infraly, LLC (AS400529)Krixe (AS931)Lambda AI (AS11588)Limestone Networks (AS46475)Macarne - AS64289 (AS64289)MDNET (AS40138)Megaport Global Access (AS49915)Merit Network (AS237)Microsoft (AS8075)NetFortris (AS32035)NSONE (AS62597)NTT Global IP Network (AS2914)NVIDIA NGC NSV (AS398037)OmniSync Networks (AS46401)Oracle Cloud Infrastructure (AS31898)PacketFabric (AS4556)PacketHub AS141039 (AS141039)PBX.io (utah) (AS399936)PowerHost Chile (AS263237)PRLSS (AS21808)Rackdog (AS398465)ROBLOX (AS22697)SBA Edge, LLC (AS53264)Shock Hosting (AS395092)Sony Interactive Entertainment (AS33353)South Front Networks (AS397326)SpaceX Starlink (AS14593)SUMOFIBER (AS4226)Teracast Networks LLC (AS57974)TZULO (AS11878)Unitas Global (AS1828)Uniti Kinetic (AS7029)UpCloud (AS202053)UpCloud USA (AS25697)Vapor IO (AS5670)ViaSat (AS7155)Voltage Park (AS46082)VOXOLOGY CARRIER SERVICES (AS40165)x99.cloud AS398991 (AS398991)Xlitt (AS22298)Xplore Inc. (AS22995)Zayo (AS6461)Zentro (AS17210)
Cloud on-ramps
AWSAzureGoogleOracle
73 networks and 6 exchanges on-net: Any2Chicago, ChIX, DE-CIX Chicago, MegaIX Chicago, QCIX and Chicago Open Pipes. AWS Direct Connect, Azure ExpressRoute, Google Cloud and Oracle FastConnect via Open Cloud Exchange; AMS-IX Chicago and United IX Chicago reachable. Carriers include Arelion, Macarne and South Front Networks.
Quote request for: CoreSite Chicago (CH1) view facility
Map
Interactive map
Frequently asked questions
Where is CoreSite Chicago (CH1) located?
CoreSite Chicago (CH1) is a colocation data center located at 427 South LaSalle, Chicago, IL, US.
How much space and power does CoreSite Chicago (CH1) offer?
CoreSite Chicago (CH1) offers 178,000+ sq ft.
How many carriers are on-net at CoreSite Chicago (CH1)?
CoreSite Chicago (CH1) is connected to 73 networks, including 20C (AS63311), Akamai Direct Connect (AS20189), Akamai Technologies (AS20940), Amazon.com (AS16509), Arelion (Twelve99) (AS1299).
What compliance certifications does CoreSite Chicago (CH1) support?
CoreSite Chicago (CH1) supports SOC 1 Type 2, SOC 2 Type 2, ISO 27001, NIST 800-53, PCI DSS, HIPAA.
How do I get a quote for colocation at CoreSite Chicago (CH1)?
Use the Request a Quote form on this page — enter your rack space and power needs and you'll typically receive pricing within 1–2 business days.