Dylan Sullivan, from the Brynmawr area, died in the early hours of Sunday morning in the crash involving one car, a white Volkswagen Polo.
A 22-year-old man from the Blaina area was arrested on suspicion of causing death by dangerous driving and has been released under investigation.
Paramedics from the South Wales Ambulance service attended the incident but Dylan Sullivan was pronounced dead at the scene.
The family of Dylan Sullivan said: “Dylan was one of the funniest and kindest people, he was full of joy and love for everyone he met.
“He was an amazing son, a loving brother, a caring uncle, a proud family member and an epic friend.
“Our hearts are broken and life will never be the same without our blue-eyed boy.
“As a family, we are grateful for the love and support we are receiving and wish for our privacy to be respected as we come together and grieve for our Dylan.”
Gwent Police is asking witnesses or anyone with information to contact them.