The company’s partnerships with cable and cellphone operators worldwide give it almost instantaneous access to potential new users without having to spend a fortune on advertising and distribution deals in markets where its brand and content are often still relatively unknown.

This growing symbiotic relationship will take center stage on Monday when Reed Hastings, the company’s chief executive, gives the keynote address on the first day of the Mobile World Congress. The conference is an annual trade show in Barcelona, Spain, where executives from across the telecom, media and technology worlds gather to meet and, potentially, sign new deals.

Mr. Hastings’s headline act — part sales pitch, part industry update — comes as Netflix’s attention has increasingly turned to its overseas subscribers.

The Orange deal, one of Netflix’s first international partnerships, is a case in point.

The two sides finally reached an agreement in late 2014, just as Netflix began expanding across much of Europe. As part of the deal, Orange customers are offered a one-month free trial with Netflix and the ability to pay for the streaming service through their existing monthly contracts. Orange has also entered into an undisclosed revenue-sharing pact in France, which has often been wary of the potential for Netflix’s American shows to outmuscle local content.

But the talks were not all smooth sailing.

Along with the typical back-and-forth about how much revenue each side would receive from the deal, Orange was concerned that Netflix, whose European headquarters are in Amsterdam, had not signed on to French rules requiring online video distributors to fund local-language content.