What was the gross and net postpaid subscriber additions in Q4 and how many subscribers adopted the Infinite plans in Q4
to be used for 5G.
Earlier this month, we became the exclusive Canadian member of the new 5G Future Forum, a 5G and mobile edge computing alliance that includes Verizon, Vodafone, Telstra, Korea Telecom, and America Movil. The global alliance will create a common framework for 5G applications across the Americas, Asia-Pacific, and Europe. Over the next several years, 5G will start to transform businesses and industries with increased speed and capacity, more efficient use of spectrum, improved battery life, and lower latency. The 5G is more than just speed. Over time, 5G will support a massive increase in the number of connected devices. These devices will require near instantaneous connections for smart cities, for remote patient healthcare, robotics, driverless vehicles, virtual reality, and gaming. 5G will touch every industry and transform our world unlike any other wireless technology.
As you know, Rogers is partnered with Ericsson, North America's 5G partner of choice. We have established key partnerships to research, incubate, and commercialize made in Canada 5G technology. This includes R&D partnerships with the University of British Columbia, the University of Waterloo and Communitech. It includes collaboration with government and industry through Ryerson University and ENCQOR 5G. These relationships are not only advancing 5G, they are attracting young talent who want to shape Canada's 5G roadmap with us.
Investment is the lifeblood of wireless networks. Investing in 5G is not only critical to Canada's digital economy, it is critical to Canada's global competitiveness. The race to 5G is not with other companies, it is with other countries. Over the past 35 years, we have invested over CAD30 billion to bring Canadians the best wireless networks in the world. We invested because we have the right public policy, the right regulation to spur investment and spur innovation. In 2020 alone, we plan to spend almost CAD3 billion in capital to build Canada's communications infrastructure. This capital and this investment is at risk. We do not have the right regulation. As we enter the world of 5G, regulatory certainty is critical to investment. We need regulation that encourages investment and fuels innovation. Punitive regulation will slow or worse stall 5G deployment. And expansion of rural connectivity will happen at a snail's pace, if at all. Ultimately, it is about balancing affordability with investment. Striking the right balance is key to Canada's digital future. The government has shown they can effectively achieve this balance and they must do it again for Canada. Looking ahead, we are well positioned to drive long-term growth, deliver the most advanced networks, and dramatically improve our customers' experience.
And with that, let me turn over to Tony. Tony, over to you.
Tony Staffieri -- Chief Financial Officer
Thank you, Joe and good morning, everyone. Overall, we're pleased with the momentum with which we exited the fourth quarter of 2019, particularly on the subscriber front. We had strong subscriber metrics in both our Wireless and Cable offering, driven by the continued transition associated with our unlimited data Infinite plans. Customers continue to embrace these plans and the revenue improvement, ARPU lift, and efficiency benefits associated with these plans should contribute to healthy financial growth in the second half of 2020. I will provide more color on our guidance for 2020 momentarily, but let me give you a quick recap of the quarter.
In Wireless, service revenue decreased 1% year-on-year, driven by a reduction in blended ARPU as a result of reduction in overage fees. Importantly, however, the year-over-year rate of decline in ARPU in the fourth quarter is already starting to improve compared to Q3, as overage decline slowed and more customers came in on Infinite plan. Gross and net postpaid subscriber additions as well as subscriber adoption of our Infinite plans were strong in Q4. Net postpaid loading was up a healthy 17%, as we added 131,000 postpaid subscribers. This robust growth was dri
to be used for 5G.
Earlier this month, we became the exclusive Canadian member of the new 5G Future Forum, a 5G and mobile edge computing alliance that includes Verizon, Vodafone, Telstra, Korea Telecom, and America Movil. The global alliance will create a common framework for 5G applications across the Americas, Asia-Pacific, and Europe. Over the next several years, 5G will start to transform businesses and industries with increased speed and capacity, more efficient use of spectrum, improved battery life, and lower latency. The 5G is more than just speed. Over time, 5G will support a massive increase in the number of connected devices. These devices will require near instantaneous connections for smart cities, for remote patient healthcare, robotics, driverless vehicles, virtual reality, and gaming. 5G will touch every industry and transform our world unlike any other wireless technology.
As you know, Rogers is partnered with Ericsson, North America's 5G partner of choice. We have established key partnerships to research, incubate, and commercialize made in Canada 5G technology. This includes R&D partnerships with the University of British Columbia, the University of Waterloo and Communitech. It includes collaboration with government and industry through Ryerson University and ENCQOR 5G. These relationships are not only advancing 5G, they are attracting young talent who want to shape Canada's 5G roadmap with us.
 Investment is the lifeblood of wireless networks. Investing in 5G is not only critical to Canada's digital economy, it is critical to Canada's global competitiveness. The race to 5G is not with other companies, it is with other countries. Over the past 35 years, we have invested over CAD30 billion to bring Canadians the best wireless networks in the world. We invested because we have the right public policy, the right regulation to spur investment and spur innovation. In 2020 alone, we plan to spend almost CAD3 billion in capital to build Canada's communications infrastructure. This capital and this investment is at risk. We do not have the right regulation. As we enter the world of 5G, regulatory certainty is critical to investment. We need regulation that encourages investment and fuels innovation. Punitive regulation will slow or worse stall 5G deployment. And expansion of rural connectivity will happen at a snail's pace, if at all. Ultimately, it is about balancing affordability with investment. Striking the right balance is key to Canada's digital future. The government has shown they can effectively achieve this balance and they must do it again for Canada. Looking ahead, we are well positioned to drive long-term growth, deliver the most advanced networks, and dramatically improve our customers' experience.
And with that, let me turn over to Tony. Tony, over to you.
Tony Staffieri -- Chief Financial Officer
Thank you, Joe and good morning, everyone. Overall, we're pleased with the momentum with which we exited the fourth quarter of 2019, particularly on the subscriber front. We had strong subscriber metrics in both our Wireless and Cable offering, driven by the continued transition associated with our unlimited data Infinite plans. Customers continue to embrace these plans and the revenue improvement, ARPU lift, and efficiency benefits associated with these plans should contribute to healthy financial growth in the second half of 2020. I will provide more color on our guidance for 2020 momentarily, but let me give you a quick recap of the quarter.
 In Wireless, service revenue decreased 1% year-on-year, driven by a reduction in blended ARPU as a result of reduction in overage fees. Importantly, however, the year-over-year rate of decline in ARPU in the fourth quarter is already starting to improve compared to Q3, as overage decline slowed and more customers came in on Infinite plan. Gross and net postpaid subscriber additions as well as subscriber adoption of our Infinite plans were strong in Q4. Net postpaid loading was up a healthy 17%, as we added 131,000 postpaid subscribers. This robust growth was dri