I would suggest talking to the SPCA and calling the local vets. If it is a very distinctive dog or if the new 'owners' take it to a vet (obviously they have no previous records, a vet should find that suspicious especially if you've tipped them off) you might have some luck that way in getting it back.

I would flip the **** out and report it

It's possible some kid wrote that, even though they haven't actually got it. Still, get some animal rescuers out there

Had that happen to me. I ended up involving the cops, they figured out who took her and charged the guy with dog napping. He ended up with a very large fine, can no longer own pets for the next 10 years and has a criminal record for being an asshole.

Probably a prank

I hope you find your fur baby soon. :(

how do you lose a dog maybe you should of trained the dog better

My neighborhood doesn't even let those signs out

You could always call the police. I think that would make your dog qualified as stolen

It didnt happen to be a dog recently lost did it? Because i just happened to find one, and also wrote on the missing papers. Not.giving.it.back!