VoIPstudio
SmartLine from GoDaddy
OpenPhone
Burner
TextNow
Sideline
Grasshopper
Dialpad
RingCentral
Ring4
Burner
OpenPhone
Shuffle
Listen
RingCentral
Google Fi
quackr
Phone line for Businesses or Individuals. Ring4 provides companies with a cloud solution to manage phone lines as simply as they manage emails. The Ring4 work on any iOS or Android device and can be managed via the Admin Console. Ring4 phone numbers are mobile and support unlimited texting, unlimited calling, voicemail and call recording. Ring4 starts at $9.99/month/line.
SmartLine from GoDaddy Ring4OpenPhone - Simplest way to own a business phone number
Burner - Disposable phone numbers -- now with MMS photo support
TextNow - TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.
Shuffle - One Phone, Multiple Numbers
Sideline - Sideline™ is the free 2nd number for your smartphone. It uses your existing carrier network so your 2nd number works anywhere your cell phone does.
Listen - A smart phone number