How to send a text message to someone who called me using Android 5.1

Question

It seems to me like there should be a way to send a text message to someone who called without having to save that number in the contacts list, but I can't figure out how. I'm using pure android 5.1.1 with default apps.

Answer 1

Updated Answer, for Android 6:

1. On the Phone app, go to the tab with the clock icon (the middle tab).
2. Tap the number that called you.
3. On the drop down menu that opened below, tap Send a message.

Original answer, for Android 5.1:

1. On the Phone app, go the RECENTS tab.

2. Tap the number that called you.

3. On the drop down menu that opened below, tap DETAILS.

4. Tap the three-dots-icon on the upper right of the action bar, and choose Edit number before call.

5. Tap the three-dots-icon to the right of the number, and choose Send SMS.