Thanks, Abel. Good afternoon, everyone. Since our last earnings call, AST has made history with the first voice calls connecting everyday smartphones to our BlueWalker 3 satellite. I want to congratulate our team on this groundbreaking milestone, and it's great to see such a feat to be supported and confirmed by some of the most sophisticated wireless companies in the world, including AT&T and Vodafone. Beyond making wireless history, we also continue to drive our plan of execution. We made continued progress around our manufacturing milestones, and we are excited about the next 12 months, which should see the launch of five Block 1 satellites and progress towards the initiation of commercial service. Let's spend some time discussing a couple of our key operating metrics for the first quarter that are displayed on slide 11. Looking at the first chart, we see for the first quarter of 2023, we had non-GAAP adjusted operating expenses of $40.3 million versus $39.1 million in the fourth quarter of 2022. Non-GAAP adjusted operating expenses exclude non-cash operating costs, including depreciation and amortization and stock based compensation, which totaled $3.5 million and $4.3 million for the fourth and first quarters respectively. Our first quarter non-GAAP adjusted operating expenses increased by $1.2 million versus the fourth quarter of 2022. Our research and development expenses climbed by $1.7 million primarily as a result of increased activity with Nokia where we are developing our gateway infrastructure. Our engineering services expenses rose by $0.6 million. Our G&A expense fell $1.1 million, primarily as a result of cost controls and discipline. We currently expect that the level of non-GAAP adjusted operating expenses will remain in the high 30s for at least two more quarters as we continue to pursue important R&D projects for our BlueBird satellites and pursue the construction and planned launch of five Block 1 BlueBird satellites in the first quarter of 2024. Turning towards the second chart. Our capital expenditures for the first quarter were $13 million versus $10.4 million for the fourth quarter. This increase in capital expenditures was directly related to our focus on building the five Block 1 satellites and the figure includes materials which are capitalized and the continued investment in our satellite assembly process. Our capital expenditures, which have been averaging around $10 million to $13 million per quarter will begin to increase to fund the development of our Block 1 satellites, which we currently expect to launch in the first quarter of 2024. Overall, we continue to expect our total capital expenditures for our five Block 1 satellites to be between $100 million to $110 million. As of the end of the first quarter, we have already expected $40 million of those projected amounts. In previous quarters, we had provided estimates for the capital costs of each of our Block 2 satellites, which includes materials and launch costs. In the last quarter, we estimated that the costs would be $16 million to $18 million. Going forward, we expect to provide these estimates once a year unless there are material changes, as we believe annual reviews provide more meaningful views on the trends of these long lived assets. As of the end of the first quarter, we had capitalized costs totaling $92.5 million for BlueWalker 3. Based on the successful testing regimen, including the voice call I mentioned earlier, we have determined that the BlueWalker 3 is now operational for accounting purposes and we will begin to depreciate this asset over the next 16 months. This depreciation will increase our non-cash depreciation charges by over $17 million per quarter until this asset is fully depreciated. And on the final chart on the slide, we ended the fourth quarter just shy of $185.7 million in cash on hand. As we stated in our 10-Q, we believe this cash as well as our ability to raise capital through our existing facilities is sufficient to support our expenditures for at least the next 12 months. We have also received numerous questions about where we maintain our -- and invest our cash. Our cash investment policy implemented last year has three investment objectives and I list them in order of priority principle protection, liquidity and lastly returns. We currently invest most of our cash in one of the largest US government money market funds in the world managed by JPMorgan Asset Management, who is our custodian of these funds. On the next slide, I wanted to provide some history and context on our capital raising efforts to-date. In total, since our founding, we have raised over $700 million in capital to help fund our development. I would like to point out several aspects of these capital raising efforts. In the first column, you will see that our Founder and CEO, Abel invested the initial risk capital to fund the business. He remains the largest shareholder in the company and does not draw a salary. Abel's future returns and most of his management teams will be driven by the performance of AST, which means he is highly aligned with his shareholders. The next part of the chart I would highlight is our list of strategic investors and partners. Vodafone, American Tower, the Cisneros Group and Rakuten are sophisticated world class operators. They all have representatives that sit on our board of directors and they all have made two investments in AST. The next column I would highlight is our sale of our stake in Nano. We identified, invested in and helped grow the space company. When we determined this company was no longer strategic to AST, we decided to sell this asset, recognizing a nine times return on invested capital. And finally, on the fundraising chart, I would highlight that we tend to target our fundraising efforts as we de-risk our business through the successful completion of milestones. Our recent equity raise in the fourth quarter was completed following the successful launch of BlueWalker 3 and the subsequent unfolding of its large scale array. We believe that investors will continue to see our milestone achievements as good times to consider new or additional investments in us. As we contemplate raising additional capital for AST, we are working very hard to explore a variety of wide variety of sources of capital designed to fund our operations in an efficient manner. And while these efforts are preliminary and there can be no assurance that additional funds will be available to us on favorable terms or at all, we are encouraged by these initial efforts. On the debt side, we are exploring raising capital with export-import agencies, structured debt providers and over time potentially accessing the debt capital markets or loan markets. We believe that the modularity of our business plan creates the potential to reach operating cash flow with a modest portion of our planned constellation. Producing operating cash flow before completing our constellation may enable us to access the debt markets to support the build-out of our constellation. Another area we are focusing on is raising capital through players in the wireless ecosystem. A key component of our strategy is to develop close relationships with important parts of the wireless industry, including MNOs, electronics manufacturers, space companies and others. We believe we are developing the next growth leg in the wireless industry and we are working with these strategic players to evaluate their interest in helping us commercialize our business and fund our plans. And with that this completes the presentation component of our earnings call and I pass it back to Scott.