esNET (now includes USLHCNet) provides transatlantic connections of the Tier1 computing facilities at Fermilab and Brookhaven with the Tier0 and Tier1 facilities at CERN as well as Tier1s elsewhere in Europe and Asia.

The objective of LHCONE is to provide a collection of access locations that are effectively entry points into a network that is private to the LHC T1/2/3 sites.

GÉANT is the pan-European data network dedicated to the research and education community. Together with Europe's national research networks, GÉANT connects 40 million users in over 8,000 institutions across 40 countries.

LHCOPN is the network for the T0-T1 data transfer.