Altice have launched their cell service.
$30 a month for unlimited
Works on sprint though they have secured a deal with ATT to expand coverage. Don't know how well that will work. byod.
**Interestingly includes unlimited talk and text and 1gb lte plus unlimited 2g data roaming in over 35 countries including Canada, Mexico and much of Europe.
As well as calls/texts to those countries from the US.
$20 for current optimum and suddenlink customer
note- limited to certain states served by Altice