Assuming you have a closed band or "ring",,, that was put there by a breeder when the bird was about ten days old. That's the only time that type of band can be used. The band has on it what ever the breeder wanted on his band. My bands have zero to do whit anything only i keep a record of what bird that band is on and when i put it there. I buy bands is lots of ten and may not use all of them in that size in one year or even two. be cause i register my bands with the AFA (American Federation of Aviculture) if you contacted them they would tell you i was the breeder but little else, they won't give out my contact info but will give me yours.It's then up to me to contact you. If your band had AFA on it then that is the case. Of course there's several companys that manufacture leg bands. If you contact these companies they can tell you if they made the band, but are under no obligation to tell you who they made them for. When you contact these companies don't forget they're doing you a favour. And so is the breeder if they contact you back. L&M in California is a good company to try. Their customers are the folks they make the bands for and the Co is going to protect their client. I've researched many band #s ,but yours is not one i recognize.