T-Mobile today announced the company’s bringing back its wildly popular #10Gigs4All promotion. Now, for a limited time, a family can get four lines with 40 GB of high-speed 4G LTE data – that’s 10 GB per line with no sharing – along with unlimited data, talk and text for just $30 per line.

With #10Gigs4All, two people can get up to 10 GB of 4G LTE each – no sharing required – for just $100 a month. Then, each additional line is just $20 more per person – also with 10 GB of T-Mobile’s blazing-fast 4G LTE. Now, with this promotion, that 4th line is free, bringing the total cost to just $120 per month for a family of four – that’s just $30 per line.

After T-Mobile first introduced #10Gigs4All with the 4th Line Free this past summer, customers flocked to the Un-carrier, making this T-Mobile’s most popular promotion of all time based on the percentage of postpaid customers signing up.

Along with 10 GB of 4G LTE data for each family member on America’s fastest 4G LTE network, families will never face annual service contracts or domestic overage penalties again. Unused data is stashed for use up to a full year later, and everyone in the family can stream all the music they want from more than 30 services without ever touching their high-speed data. Not to mention unlimited data and texting in more than 140 countries and destinations around the globe.

#10Gigs4All with the 4th Line Free is available today for a limited time at http://explore.t-mobile.com/simple-choice-family-plan-with-10gb-data and at participating T-Mobile stores nationwide.

*4G LTE Data where available