Mine have a variety. Ozzy's has "If I'm Alone, I'm Lost" and mine and my spouses old number on it. (My number hasn't changed, just DH's)
Enzo has a Fetching Tag, so it has her tagline, and on the back is her name and my phone number.
Indy's GDS tag has the same "If I'm Alone, I'm Lost" on it, as well as both of our numbers (DH's number is correct on hers) and the city and state listed. I bought it when we were headed out to CO, so on the off chance she got loose, they would know she was from out of town, and someone would be looking for her.
I really like the "If I'm Alone, I'm Lost" because it states the definite truth. If my dogs are ever alone, they're lost. I don't put reward on their tags, just because, actually, idfk, but I don't like it on there.
Indy's next tag my say "Call My Bitch!" on one side and "Oh Sh!t, I'm Lost!" on the other, with my phone number, lol. I have an aversion to putting their names on their tags.
The only reason I haven't ordered that tag is because it's not exactly polite, lol, and I'm not sure it wouldn't cause a riot of someone read it from afar in public while she's working
I think I know the solution to that though...
Ahahahahahah! I found an awesome one by critterbling on etsy. It says "Have your people call my people" I may need this for Ozzy......