What about copying the whole message text (if you tap and hold somewhere else in the message other than the underlined numbers)? Also, why wouldn't it underline the whole address and not just the ending, the first numbers and the street name that follow it would seem like it would recognize as the address as well?
I figured it out! If you tap/hold, you'll get the option to copy only the '77092'. However, if you double tap (quickly), you'll get the option to copy the whole text msge. Problem solved! Thanks for the reply CDM!