Thanks, Seth and thank you to everyone joining us today on our first call as a public company. Our IPO was an exciting milestone and Jeff and I would like to start by thanking our enterprise customers and our amazing Bandwidth teammates who've made our success possible. Given that this is our first earnings call, we thought it would be helpful to provide a brief overview of Bandwidth. I’ll then summarize the operating results for the third quarter and discuss our strategic growth initiatives before turning it over to Jeff Hoffman, our CFO. Enterprise customers use our software platform and our all IP network to provide voice calls, text messages and 911 services to end users of their applications and devices. You might use Bandwidth today if you use Google Voice, Microsoft Office 365, Skype for Business, RingCentral or smartphone apps like Pinger, Grubhub and ZipRecruiter. We believe we are entering a golden age of communications heralded by a new voice user interface, natural language processing and always on intelligent devices. We are honored to serve many of the leading companies who are ushering in this new era. Our software platform, nationwide network and amazing team give our customers the powerful tools they need to deliver the highest quality voice, messaging and emergency services for any application, website or device. Our software platform is uniquely positioned to meet the end-to-end needs of our enterprise customers. At the heart of our communications platform as a service or CPaaS solution is a robust set of application programming interfaces known as APIs that allow our enterprise customers to seamlessly integrate voice and messaging directly into their products, services and applications. The APIs are built to top, our nationwide all IP network that we own and control, which allows us to offer the kind of reliability and quality that an enterprise customer demands. In terms of the market opportunity, according to IDC, the overall CPaaS market is expected to reach $8.2 billion by 2021. We believe this market is being driven by a number of factors, including enterprise demand to embed communications into their applications. In today's mobile world, collaboration is more important than ever and the reason why enterprises are working to make communicating on the go easier and more accessible by incorporating voice and messaging into the applications we use every day, where we live, work and play. Over the last decade, voice calling has migrated toward unified communications as well as integrated solutions within enterprise applications, such as Google Suites and Office from Microsoft 365. Enterprise users communicate and collaborate using these applications, which use software powered communications platforms such as Bandwidths to carry out the calling and messaging functions. Another trend driving CPaaS growth is the shift to a voice driven interface from text. Voice first user interfaces built on natural language processing and AI technology are becoming a natural extension of existing voice enabled devices such as mobile phones. According to Gartner, by 2018, more than 2 billion people will use conversational AI to interact with virtual personal assistants known as VPAs, virtual customer assistants and other AI enabled smartphones and connected devices on a regular basis. By 2020, more than 50% of cloud interactions will be in homes with VPA speakers. Looking forward, we expect the rise of voice as an interface to further expand our opportunities. Amazon's Alexa, Google Assistant, Apple's Siri, Microsoft's Cortana and Facebook M are all examples of voice as the first new user interface since the mouse and touchscreen. Bandwidth is well positioned to benefit from all these trends as well as power the next wave of communication innovators providing services and devices for our connected homes, cars and workplaces. In regard to our differentiation in the market, we are the only CPaaS provider that combines both our API platform and our all IP network, which allows us the ability to offer enterprise customers the control and visibility they demand, so they can offer a high quality experience for their end user customers. Voice quality is critical for an enterprise since a delay could result in a dropped call or losing important parts of the conversation. In addition, we are the only CPaaS provider that offers our own 911 emergency network capabilities, allowing us to provide enterprise customers secure state-of-the-art 911 provisioning and a real time geospatial routing platform. Our third quarter results are evidence that our strategy is working. Total revenue came in at 41.3 million, driven by a 10% year-over-year increase in CPaaS revenue. In the third quarter, our active CPaaS customers increased 18% year-over-year to 918 customers. We're very proud to have achieved solid revenue growth with limited sales and marketing investment, given our bootstrapped history and believe our growth inflection point is ahead of us. Looking forward, our focus will be to accelerate our growth by adding new enterprise customers across a broad range of industries, which need enterprise grade voice and messaging services. We plan to use a portion of the IPO proceeds to ramp our sales and marketing efforts, given the demand we are seeing in the market. We expect our existing enterprise relationships to drive growth with not only increased usage of our platform, but often customers initiate with one of our services and subsequently add other solutions. Additionally, we frequently benefit from the opportunity to provide our services to different lines of business within existing customer organizations, particularly with larger enterprises where we engage with multiple product leaders across various lines of business. We also continue to build innovative product capabilities to meet our customer's needs. We intend to invest in the continued development of our platform and product features to support new use cases and help our enterprise customers succeed, as communications technologies evolve. Finally, given that some of our enterprise customers operate globally or have plans to do so, we plan to explore the development and growth of our international offerings. Today, our international business is immaterial and while we do not have specific expansion plans to announce today, we are actively exploring opportunities including those where we might have a cost or quality advantage in serving our customers. So in summary, we were very pleased with the strong execution in the third quarter. We remain excited about our future and our ability to grow our CPaaS customer base, expand with existing enterprise customers and further leverage our unique combination of our API platform and our all IP network. With that, let me hand it over to Jeff Hoffman, our CFO to walk through the financials in more detail. Jeff?