How to get a phone number without a carrier?

I've searched around for a couple hours trying to find out before posting.

I'm a newb in most respects so please bear with me. (And sorry if this is the wrong subforum!)

I have a zenfone 2 (sim free) updated to the latest firmware/android updates.

• I connect to the internet via wifi only (I have no carrier because I don't have that kind of money)
• I have no sim card
• I bought it in USA
• I live in Japan

All of the services I've seen (google voice, burner, inum) require I be in the states and or have an existing carrier (phone number) before being able to create a phone number.

I want a phone number so I can call landlines in Japan. I wanted to use the app WhatsCall to do that, but in order use that app I need a phone number.

I'm willing to accept the fact that what I'm trying to do is impossible. But I'd like to ask the pros/those-in-the-know if it's possible or not before giving up.

Thanks in advance for any info in these regards!

— modified on Jul 3, 2016, 6:12:52 AM

Hey B Birch,
Thanks a lot for the info. I didn't want to accept that fact, but it looks like I'm going to have to.

Thank you for taking the time to reply!