Daniel K. Schlanger
Executive Vice President & Chief Financial Officer at Crown Castle
Thanks, Jay and good morning everyone.
We generated another year of solid growth in 2022 and we expect the strong operating trends across our business to continue as we see a long runway of 5G investment in the US. The elevated leasing activity across our customers contributed to another year of industry leading tower revenue growth in 2022 of nearly 6.5% and to 9% growth in our annual dividends per share. Before discussing the 2022 results and 2023 outlook, I want to draw your attention to some enhancements we made this quarter to the disclosure in our supplemental information package.
In response to feedback we have heard from our investors, we provided organic billings growth detail by line of business for towers, small cells and fiber solutions to help investors better understand the composition of organic growth trends. This enhanced disclosure includes historical organic growth information going back to 2019. In addition to expanding our disclosure, we also reorganized the supplemental information package, in many cases, by line of business to make it easier for readers to follow. We hope you find this additional information and the new layout to be helpful.
Now turning to the full year 2022 financial results on Slide 4 of our earnings presentation, site rental revenues increased 10%, adjusted EBITDA growth was 14% and AFFO increased by 6% for the year. The 10% growth in site rental revenues included 5% growth in organic contribution to site rental billings, consisting of nearly 6.5% growth from towers, more than 5% growth in small cells and 2% growth in fiber solutions.
Turning to Page 5, our full year 2023 outlook remains unchanged and includes site rental revenue growth of 4%, adjusted EBITDA growth of 3% and AFFO growth of 4%. We also expect organic billings growth of approximately 4% when adjusted for the impact of the previously disclosed Sprint cancellations. The 4% consolidated organic growth consists of 5% growth in towers, 8% growth in small cells and flat revenue in fiber solutions. As we discussed last quarter, we expect the rationalization of a portion of Sprint's legacy network to result in some movements in our financial results that are not typical for our business.
Our expectations for non-renewals and accelerated payments associated with this network rationalization activity are unchanged with approximately $30 million of new non-renewals and $160 million to $170 million of accelerated payments during 2023. We expect the majority of the non-renewals to occur in the first quarter and therefore impact year-over-year billings growth in each quarter this year. We expect the accelerated payments associated with this decommissioning activity and related services work to be concentrated in the second quarter. As a result, we expect the second quarter to represent the high watermark for adjusted EBITDA and AFFO in 2023.
Turning to financing activities, we finished 2022 with leverage in line with our target of approximately 5x net debt to adjusted EBITDA. For full year 2023, our discretionary capex outlook is also unchanged with gross capex of $1.4 billion to $1.5 billion or approximately $1 billion net of expected prepaid rent. Based on our current backlog of small cells that includes a significant mix of co-location nodes, which have higher returns and require less capital relative to anchor builds, we expect to be able to finance our discretionary capital with debt while we are maintaining our investment grade credit profile.
Earlier this month, we added to our strong balance sheet position when we issued $1 billion in senior unsecured notes with a 5% coupon to term out borrowings under our revolving credit facility. Following this financing transaction, we have more than 85% fixed rate debt, a weighted average maturity of over 8 years, limited maturities through 2024 and approximately $5.5 billion in available liquidity under our revolving credit facility.
So to wrap up, we are excited about the strength of our business and our ability to execute on our strategy to deliver the highest risk-adjusted returns for our shareholders by growing our dividend over the long-term and investing in assets that will help drive future growth. We have delivered 9% compound annual and dividend per share growth since we established our 7% to 8% dividend per share growth target in 2017. And I believe that we are positioned well to return to 7% to 8% dividend per share growth as we move beyond the Sprint decommissioning impacts in 2025.
With that, Kate, I'd like to open the call to questions.