ATL01 – Atlanta, GA, USA
Test IPv4: 162.245.216.243
Test IPv6: 2602:ffc5::a4fe:d5f9
Test file: http://atl-lg.hostus.us/100MB.test
Looking glass: http://atl-lg.hostus.us/

DAL01 – Dallas, TX, USA
Test IPv4: 104.128.239.2
Test IPv6: 2602:ffc5:1f::14fd:d790
Test file: http://dal-lg.hostus.us/100MB.test
Looking glass: http://dal-lg.hostus.us/

DAL02 – Dallas, TX, USA
Test IPv4: 45.58.55.2
Test IPv6: 2602:ffc5:30::1:bc16
Test file: http://dal02-lg.hostus.us/100MB.test
Looking glass: http://dal02-lg.hostus.us/

LAX01 – Los Angeles, CA, USA
Test IPv4: 216.189.149.3
Test IPv6: 2602:ffc5:20::1:e257
Test file: http://la-lg.hostus.us/100MB.test
Looking glass: http://la-lg.hostus.us/

WDC01 – Washington D.C., USA (Herndon, VA)
Test IPv4: 216.189.157.2
Test IPv6: 2602:ffc5:40::1:ec35
Test file: http://wdc-lg.hostus.us/100MB.test
Looking glass: http://wdc-lg.hostus.us/

LON01 – London, United Kingdom
Test IPv4: 185.122.56.3
Test IPv6: 2a06:8ec0:3::1:749f
Test file: http://lon-lg.hostus.us/100MB.test
Looking glass: http://lon-lg.hostus.us/

HKG01 – Hong Kong SAR, China
Test IPv4: 45.124.64.3
Test IPv6: 2402:9e80:0:1000::1:918b
Test file: http://hk-lg.hostus.us/100MB.test
Looking glass: http://hk-lg.hostus.us/

SYD01 – Sydney, NSW, Australia
Test IPv4: 27.100.36.5
Test IPv6: 2402:9e80:1::1:a4a4
Test file: http://syd-lg.hostus.us/100MB.test
Looking glass: http://syd-lg.hostus.us/

SGP01 – Singapore
Test IPv4: 210.16.120.5
Test IPv6: 2403:5680::1:8888
Test file: http://sgp-lg.hostus.us/100MB.test
Looking glass: http://sgp-lg.hostus.us/

HostUS operate their own network in the USA and UK (AS7489 / AS25926) and in Asia they partner with SoftLayer (AS36351). They use direct ARIN (USA) and APNIC (Hong Kong, Singapore, Sydney) IP allocations. Most but not all allocations in London are direct RIPE IP allocations.