City Host is partnered with Colo4Dallas, a premier data center located in the United States. Located in downtown Dallas, our data center is positioned on one of the most fiber rich routes in the city.

The fully equipped, 28,000 square foot facility is staffed around the clock. With uncompromising standards for security, power supply and environmental controls, Colo4Dallas is focused on connectivity, redundancy and resilience.

City Host maintains and owns all of our equipment including our own private racks.

• Network
  • Multiple carriers with diverse building entrances
  • Fully redundant Cisco architecture using 12008 and 7513 routers, with 5500 series switches
  • HSRP failover protection
  • Dual network feeds to each customer
  • 100% Service Level Agreement


• Power Systems
  • Leibert and Powerware UPS with 120, 208, 220VAC available
  • Maintenance by-pass
  • 2400 amps DC plant
  • 100% diesel generator backup with auto start and auto transfer switch
  • Generator capacity equal to building utility service
  • A and B DC plants totally diverse
  • Fuel capacity exceeds 24 hours
  • Fuel delivery contract with 2-hour guarantee


• Environmental Controls
  • Constant ambient air temperature of 68° (+/- 2°)
  • Liebert air
  • Under-floor cooling
  • Humidity control via Liebert units


• Security and Access
  • 24x7 on-site technicians
  • Multiple layers of 24x7 security cameras, card readers, and key pads
  • Access to equipment area 24x7 via card key and key pads
  • Non-customers enter equipment area by escort only
  • All cabinets, cages, and suites are locking, with security upgrades available
  • Facilities are monitored with 24 hour recording and 5 day video storage
  • Fire Suppression Systems
  • Pre-action sprinkler rated for telecommunication equipment/computer room
  • Integrated smoke/heat detector system