Thank you, Andi. Good evening, ladies and gentlemen. Welcome to our conference call for the first quarter of 2022 results. We appreciate your participation in this call. Before we start, please allow us to wish you a very happy Eid Mubarak to all of you who celebrated this holy festival. In order to currently continue telecommunication network and services while enhancing customer satisfaction during holy Ramadhan and Eid holidays, Telkom assigned a task force monitored by management. Ladies and gentlemen, in the first quarter of 2022 Telkom interim growth in revenue, EBITDA and net income, which increased by 3.7%, 3.1% and 1.7% year-on-year, respectively.
Slower growth of bottom line profitability was mainly contributed by unrealized loss from investment in GoTo. IndiHome’s contribution to Telkom’s consolidated revenue has steadily increased. During first quarter '22, IndiHome’s contribution was 19.5%, up from 18.7% in the same period last year. With the additional intake of 136,000 new customers, IndiHome has successfully maintained EBITDA margin at around 50%.
On the Mobile side, amidst continued competition, Telkomsel has maintained modest revenue growth of 0.2%, while earning whole EBITDA margin of 27.7%. Telkomsel continues to establish a legal ecosystem to pursue lucrative growth in beyond-connectivity mobile business. Growing digital business revenue has steadily offset declines in legacy product revenue.
Diesel business revenue almost 80% of the total revenue in first quarter of '22. Enterprise business saw positive growth as the profit in Indonesia has less contagious. This brings positive effect to the economy [indiscernible]. On the enterprise business, with COVID-19 subsiding has led to increased business activities. This segment also saw positive growth by recording a slight revenue increase of 1.9%. Enterprise business growth is from B2B IT services and Enterprise Digital Solution. On Wholesale and International Business, the ever-growing tower business and international wholesale price were the largest contributors to this stunning revenue performance by importing 16% growth year-on-year.
Our strategy to increase competitiveness and sustainability amongst competition known as 5 Bold Moves, continued to intensify its effect by reinforcing significant business cooperation and consolidation, both internally and externally. In order to cater fast opportunity for business-to-business at this service, Telkom already conducted subsidiary alignment by raising the status of PT. Sigma Citra Caraka, or TelkomSigma, to be direct subsidiary of Telkom. This strategic alignment enables the Telkom Group to concentrate on B2B IT Services under “One Roof”.
Just recently, in April '22, Telkom and Microsoft signed a Strategic Partnership Agreement that aims to accelerate Indonesia’s national digitalization, strengthened the country's intelligent, infrastructure and enable the internal digital transformation of the Telkom Group to become the first choices of the digital telco. This is one of the infrastructure initiatives to establish strategic purposes with several global tech companies that would have a positive impact on Telkom business development, especially in the digital platform and digital services domains.
That is the end of my remark, and thank you for your kind attention.