Address

Gedung Menara Multimedia 12th floor, Jl. Kebon Sirih No. 12, Jakarta Pusat 10110

Free call (free) : 0-800-1-TELKOM (835566)

SMS/Sellular : 0811989372, 0811889372

Phone : (021) 3863000, (021) 3866600 (ext.371 s/d 374)

Faximile : 0800-1-135135, (021) 3807200

Web: http://www.c4.telkom.co.id/

Email: c4@telkom.co.id