The deal will save 359 jobs, according to EE and administrators PwC.
Vodafone has also agreed to pick up 140 Phones 4U stores. Phones 4U was an independent retailer, and failure to renew contracts to sell services with both EE and Vodafone forced it to shut up shop last week.
Phones 4U founder John Caudewell told the BBC that the "ruthless actions" of mobile phone networks was an "unprecedented assassination".
There are still thousands of jobs that are at risk at Phones 4U, which employed 5,600 members of staff. But Dixons Carphone announced that it will be hiring the 800 Phones 4U staff that work in the Currys and PC World Phones 4U concession stores.