BT Global Europe
BT Global Europe B.V. Magyarországi Fióktelepe, H-1117 Budapest, Budafoki út 91-93.
+36 1 777 0144
Romtelecom
Piata Presei Libere nr. 3-5, cladirea City Gate, Turn Nord, sector 1
n.a.
Orange
Orange Business Services Hungary Kft
H-1117 Budapest, Budapart tér 2, BudapartGate 3th floor
+36-12982600