How many band members are there in the American rock band Blink-182?

Blink-182 (sometimes written as Blink 182; often stylized in all lowercase as blink-182) is an American rock band formed in Poway, California in 1992. Since 2015, the lineup of the band has consisted of three members the bass guitarist and vocalist Mark Hoppus, drummer Travis Barker, and guitarist and vocalist Matt Skiba. Founded by Hoppus, guitarist and vocalist Tom DeLonge, and drummer Scott Raynor, the band emerged from the Southern California punk scene of the early 1990s and first gained notoriety for high-energy live shows and irreverent lyrical toilet humor. Hoppus is the only constant band member.

According to "Alternative Press" magazine, Blink-182 is considered a key group in the development of pop-punk; the band's combination of pop music melodies with fast-paced punk rock featured a more radio-friendly accessibility than prior bands. The trio has sold over thirteen million albums in the United States, and over 50 million albums worldwide.