According to Sen. Patrick Leahy, the hearing will give the Senate Judiciary Committee a chance to discuss Net neutrality, among other issues.
Some states have joined the effort to investigate Comcast's proposed $45.2 billion buyout of Time Warner Cable.
Deal's closure comes after the FCC gave its approval to the takeover of the prepaid wireless provider.
AT&T partners with the Chernin Group to jointly commit $500 million in investment to new online video ventures.
A partnership between the country's biggest cable-TV provider and its smaller competitor would provide Cox customers with a "white label" version of Comcast's high-tech video operating system.
Chief Financial Officer John Stephens says "the window of opportunity for owning assets is closing," and says AT&T will focus more on the US, including expanding its GigaPower fiber service.
Wireless infrastructure provider will have the option of purchasing about 9,100 AT&T towers after an average lease term of 28 years.
The new plans offer more savings with more people, with a family of four paying $160 month for 10 gigabytes of data.
Even though AT&T said earlier this week that it had no immediate plans to acquire UK-based Vodafone, the US carrier may consider a takeover of the company later this year, according to a report.
Word has it that the cable operator is working on a mobile service that will primarily rely on Wi-Fi to deliver voice, text messaging, and data services. When Wi-Fi isn’t available, the service will use spectrum from traditional cellular carriers.