Below you can find logos, similar to the ASC 21.

Big Rock 215 Big Rock 215 vector
Universal 121 Universal 121 vector
Mobil 21 Mobil 21 vector
Batman 217 Batman 217 vector
Tacony 21 Tacony 21 vector
Texas Rangers 211 Texas Rangers 211 vector
NXN Software 213 NXN Software 213 vector
Sara Lee 214 Sara Lee 214 vector
21VC Partners 21VC Partners vector
mascota JACA 98 mascota  JACA 98 vector
Ascon Ascon vector
Ascon 27 Ascon 27 vector
Anixter 213 Anixter 213 vector
Hachette Fascicules Hachette Fascicules vector
Football Mascot 36 Football Mascot 36 vector