Spotify, the world’s No. 1 music streamer, is focusing on a deal to move its city offices to the World Trade Center.

The Swedish company, whose US offices are now located in about 140,000 square feet at 620 Ave. of the Americas on the Ladies’ Mile in Midtown South, is negotiating through a JLL team for prime positions at both One World Trade Center and 4 World Trade Center, real estate sources tell The Post.

In May, the Real Deal reported it was in the market for as much as 350,000 square feet.

According to CoStar data, the 3.1 million square-foot One World Trade has 435,641 square feet available on the full 65th to 75th floors — plus the ability to have a 5,122 foot portion of the sky lobby on 64 as an entrée to the company with an asking rent of $69 per square foot.

One World Trade Center also has portions of other floors and some full floors — including 87 and 88, totaling 69,157 square feet at a higher rent — still on the market.

Condé Nast is its largest tenant. The Durst Organization has a stake in and manages and leases the building for the Port Authority along with a Cushman & Wakefield leasing team.

The 2.3 million square-foot Four World Trade Center, owned by Silverstein Properties, has almost 500,000 square feet available, with 463,000 square feet of that contiguous on 59 through 72, the building’s top floor. Asking rents are $70-plus per foot.

A CBRE team leases the building along with Silverstein.

As for Spotify, after a $1 billion convertible debt raise this past spring, it was valued at $8 billion.

Spotify Chief Executive Daniel Ek is seeking to launch an initial public offering next spring, before it will cost more to convert the debt, Bloomberg reported this summer.

JLL, Silverstein and Durst declined comment through spokespeople.