Here you go:
Pay with Bitcoin -
Link: https://disposable.io/sms?nf
Send & Receive Texts Online with disposable.io. Get a phone number and send your first message in seconds.
Get any area code you want
Choose to renew or dispose of your number when done.
Get a temporary phone number that forwards calls to your existing line. disposable.io provides a simple web interface to send & receive SMS messages.
Messages between disposable.io users are 128-bit secured end-to-end
Optionally get text messages forwarded to your mobile device, too.
Perfect for craigslist, or strangers at a bar.