He gained recognition through his roles in the films The King of Jokgu (2013) and Fabricated City (2017) and in the television series Reply 1988 (2015–2016), Fight for My Way (2017) and Be Melodramatic (2019).

His acting received favorable reviews from viewers and Ahn was nicknamed "Bongvely", a combination of "Bong" from his character Jung-bong and "lovely", by the press.

[14][15][16] In January 2016, Ahn and Reply 1988 co-stars Ryu Jun-yeol and Go Kyung-pyo were surprised by Na Yeong-seok and taken to Namibia and Zimbabwe to film the variety show Youth Over Flowers.

[18][19] In 2017, Ahn played a supporting role in director Hong Sang-soo's On the Beach at Night Alone and starred in the television series Fight for My Way.

][24] In 2018, Ahn took on the role of Han-sol, an aspiring online comic artist, in Gwanghamun Cinema's Microhabitat, starring with Esom.

In 2019, Ahn starred in JTBC television series Be Melodramatic as the arrogant and famous director Son Beom-soo.

Every year, the organizer selects a domestic actor with personality and high potential to focus on acting world.

In 2015, he and fellow actor Lee Dong-hwi appeared in a Kia Motors' K5 promotional video, where they played their characters from Reply 1988.

[31] Ahn was also selected alongside Ryu Jun-yeol and Kim Seol as the models for Nongshim's Jjawang ramen commercial, where they portrayed their characters from Reply 1988.

[32] He and Ryu Jun-seol filmed a commercial for a telecommunications company with their on-screen mothers Ra Mi-ran and Kim Sung-Kyun.