Instant Dedicated currently offers servers in 2 datacenters around the Globe:

The Netherlands, Europe: Dataplace (www.dataplace.eu)
Miami, United States: Colohouse (www.colohouse.com)

Dataplace (NL) is a TIER 3 datacenter with 100% guaranteed uptime and we have in-house staff available.
Colohouse (USA) is a TIER 3+ datacenter with 100% guaranteed uptime and in-house staff.