Chennai is one of four Indian cities connected to the rest of the world by undersea fibre-optic cables, the other three being Mumbai, Kochi, and Tuticorin. The city is the landing point of major submarine telecommunication cable networks such as SMW4 (connecting India with Western Europe, Middle East and Southeast Asia), i2i (connecting India with Singapore), TIC (connecting India with Singapore), BBG (connecting India with the Sultanate of Oman, Malaysia, the UAE, and Sri Lanka), and BRICS (connecting India with Brazil, Russia, China and South Africa).