The sources further claimed that the agency launched its investigation five months ago after receiving tips from a wireless carrier and at least one device maker. This would make it impossible for customers to switch carriers and runs counter to the goal of eSIM.
eSIM is a technology that eliminates the need for a physical SIM card, which has traditionally been needed to switch carriers. eSIM allows carriers to switch carriers remotely without the need to purchase a new SIM card.
The investigation highlights a push by the Justice Department's antitrust chief, Makan Delrahim, to crack down on the opaque world of intellectual property, or IP, standards.
Carriers like AT&T and Verizon have increasingly been losing subscribers to T-Mobile, thanks to more consumer friendly policies ranging from cheaper global roaming to the elimination of hidden fees and long-term contracts. In a statement, a Verizon spokesman said that this is all about "a difference of opinion with a couple of phone equipment manufacturers regarding the development of eSIM standards". Instead, the DOJ requested information from all four major USA carriers back in February as the agency started an antitrust investigation into the wireless business.
Monte Carlo Masters 2018: Saturday Tennis Scores, Results, Latest Schedule
Nadal piled on the pressure in game 10 to earn two set points on Dimitrov's serve, snatching the second to go a set up. Despite a comfortable 6-4, 6-1 win against Grigor Dimitrov , he has a pressing concern given how quickly he is texting.
Inspectors may visit Douma on Wednesday
She stressed that it is Russian Federation and Syria that bear the responsibility for the security of the OPCW experts. A Pentagon spokeswoman said there was no US military activity in the area.
Southwest pilot hailed a hero : 'We were simply doing our jobs.'
I'm going to send her a Christmas card - I'm going to tell you that - with a gift certificate for getting me on the ground. Shults was among the first female fighter pilots in the USA military, according to friends and former classmates.
At the heart of the investigation is whether the nation's biggest wireless carriers, working with the GSMA, secretly tried to influence mobile technology to unfairly maintain their dominance, in a way that hurt competition and consumers and hindered innovation in the wider mobile industry.
AT&T is already locked in a legal battle with the Justice Department over its plan to acquire Time Warner.
News of the probe comes at a critical time for AT&T which is being sued by the Justice Department to stop its deal to buy media company Time Warner Inc (TWX.N). The Apple Watch 3 and Google's Pixel 3 also have eSIMs installed.
Consumer advocates learned in February that Verizon was apparently planning to lock phones as an anti-theft measure, and later were told by industry participants that Verizon was working with AT&T in hopes of convincing the GSMA to create a standard for locking the phones, according to Harold Feld, a senior vice president at Public Knowledge.