Greetings and welcome to Bandwidth Fourth Quarter and Full-Year Earnings Results Call. At this time, all participants are in a listen-only mode. A question-and-answer session will follow the formal presentation. (Operator Instructions). As a reminder, this conference is being recorded.

I would now like to turn the conference over to your host, Mr. Marc Griffin. Please go ahead.

Thank you. And good afternoon, and welcome to Bandwidth fourth quarter and full year 2018 earnings call. Today, we'll be discussing the results announced on our press release issued after the market close.

With me on the call this afternoon is David Morken, Bandwidth's Chief Executive Officer; and Jeff Hoffman, Chief Financial Officer of Bandwidth. They will begin with prepared remarks and then we will open up the call for Q&A.

During the call, we will make statements related to our business that may be considered forward-looking, including statements concerning our financial guidance for the first fiscal quarter of 2019 and full year of 2019, our plans to execute on our growth strategy, our ability to maintain existing and acquiring new customers and other statements regarding our plans and prospects.

Forward-looking statements may often be identified with words, such as, we expect, we anticipate or upcoming. These statements reflect our views only as of today and should not be considered our views as of any subsequent date.

We undertake no obligation to update or revise these forward-looking statements. Forward-looking statements are not promises or guarantees of future performance and are subject to a variety of risks and uncertainties that could cause the actual results to differ materially from our expectations.

For a discussion of material risks and other important factors that could affect our actual results, please refer to those contained in our 10-K filing on February 26th, 2018, as updated by other SEC filings, all of which are available on the Investor Relation section of our website at bandwidth.com and on the SEC's website at sec.gov.

Finally, during the course of today's call, we will refer to certain non-GAAP financial measures. A reconciliation of GAAP to non-GAAP measures is included in our press release issued after the market close today, which is located on our website at bandwidth.com and on the SEC's website at sec.gov.

With that, let me turn the call over to David.

Thank you, Marc, and thank you to everyone joining us on our fourth quarter and full year 2018 earnings call. Since we are reporting results for our first full year as a public Company, I want to begin by thanking God, all our BAND-mates and their families, our customers, and current investors. We are proud that we delivered an excellent first full year as a public Company, and no, it was only possible because of the creative work and commitment of many people including those on this call.

We are also excited to finish the year so strong with our fourth quarter performance, well above our guidance. During this past year, we achieved remarkable results by serving