AT&T, Sprint, and T-Mobile US have announced that they will carry the Samsung Galaxy S6 and Galaxy S6 edge. AT&T prepaid brand Cricket Wireless also announced that it would carry the device, as did UK carriers Vodafone and Three.
Also in the U.S., you'll be able to find the GS6 on Verizon, of course, and US Cellular has thrown its hat into the ring as well.
[custom:mwc15] In addition to these carriers, UK retailer Carphone Warehouse has announced that they will sell the Galaxy S6 and S6 edge. The devices are expected to be available in spring 2015, with Sprint announcing availability for some point in April. No prices have been announced at this time.
Both devices were announced on stage at MWC 2015. Both devices run Android 5.0.2 Lollipop, and sport 5.1-inch 2560x1440 QHD displays. The the S6 edge display of course features two curved edges. The phones come with the latest Samsung Exynos 64-bit octa-core processor, and 32GB, 64GB, and 128GB of non-expandable storage. They have 3GB of RAM, and 16MP rear cameras, as well as 5MP front-facing cameras.
For more on the Galaxy S6 and S6 edge, be sure to check out Android Central's hands-on with both devices.