t-mobile us inc. - TMUS

Multiple top telecom service providers in the U.S. on Thursday reported that some customers traveling abroad were having connectivity problems while roaming due to a provider partner.

Four wireless carriers were each hit with multi-million-dollar fines by the Federal Communications Commission (FCC). They were AT&T, Verizon, T-Mobile and Sprint.

AT&T revealed the cause of a nationwide outage that temporarily stripped tens of thousands of customers of cellular service to be the "execution of an incorrect process."

AT&T has yet to say anything about a reported service outage impacting tens of thousands of customers nationwide Thursday morning.

Elon Musk's SpaceX carried six direct-to-cell satellites that will be used by T-Mobile and other carriers into Earth’s orbit earlier this week. It will offer text messaging to start.

T-Mobile revealed Thursday it will trim its headcount by nearly 5,000. Corporate and 'back-office' jobs at the company will be most affected, according to the wireless carrier.

A slew of companies have indicated in the past few months that they will exit locations in San Francisco's downtown area, moves AT&T, Westfield and Nordstrom recently said they would also make.

T-Mobile's flagship location in San Francisco's Union Square now sits unoccupied, joining a handful of other stores closing in the city's downtown area.

Mint Mobile, the budget wireless provider partially owned by Ryan Reynolds, sold to T-Mobile for $1.3 billion. Reynolds announced the news in a tweet Wednesday.

Over a span of 24-hours, there were over 83,000 reports of users experiencing disruptions that affected cellular services according to a website that tracks outages.