Last spring, Swedes got a tantalizing offer: If they subscribed to Sweden’s biggest telecom provider, Telia Company AB, they could have unlimited access on their mobile phones to Facebook, Spotify, Instagram and other blockbuster apps.

Swedish regulators tried to put a stop to it. They argued that the arrangement violated the so-called net neutrality rules in the European Union, which require internet providers to offer equal access to all web content. Essentially, once a user’s data cap was reached, Telia would restrict other apps, but not the big ones.

The issue is now working its way through the courts. As it does, the offer is still available.

Such deals may be gaining momentum in the United States.

The Federal Communications Commission is expected to vote on Thursday to roll back the net neutrality rules in the United States. While the European Union has such rules in place, telecom providers have pushed the boundaries at times in Sweden, Germany, Portugal and elsewhere, offering a glimpse at the future American companies and consumers may face if protections are watered down.