Been recently contemplating this again after hitting a brick wall a couple of years ago (MyUS refusing to forward the card, Amex unable to change the address because I couldn't receive a verification SMS to my Skype number). Only issue was having no Australian Amex card to globally transfer, until I remembered my old UK Amex.
Textnow was a nightmare, try as I might I couldn't get that to allow me to signup (instantly blocked for violating Terms of Service, how I'm not sure as I'd entered no details at all), tried using VPNs, the lot. What has worked to get a US phone number is to simply sign up to a T-Mobile e-SIM plan - I haven't worked out how to get it to roam yet, but it does connect to Wifi calling, so receives calls and SMS that way.
Application for Hilton Aspire was accepted. I'll see how I go with Planet Express or whether I call Amex to try the re-ship option in a week or so, but it did let me add the card straight to PayPal, which I promptly used to pay my Telstra bill, so that's more than I've achieved before.
Am I supposed to see a signup bonus counter for this card? I know Amex AU & UK have always been touch and go as to whether this actually exists or not. I can see my Hilton Honors balance in the app.