RIAJ Digital Track Chart

The RIAJ originally started certifying digital downloads in August 2006. At the same time, they began posting a monthly chart called the (officially the ). This now defunct chart ranked the highest Chaku-uta (ringtone) downloads for the month. The chart was disbanded in March 2009 (the final month's data being February 2009), and was replaced by the identically named weekly Chaku-Uta Full chart. ==Methodology==

The chart week runs from Wednesday to Tuesday and updated on every Friday at 11 a.m (JST). The first number-one song on this chart was "It's All Love!" by Kumi Koda and Misono. At first, the data was sourced from five providers: Dwango, Mora, Mu-Mo, music.jp and Recochoku. ==Records==

Only three non-domestic artists have ever broken the top 10 charts: Michael Jackson's "Thriller" at #7 in June 2009 (directly after his death) and the Backstreet Boys' "Straight Through My Heart" at #4 in September 2009 and Lady Gaga feat. Beyoncé's "Telephone" at #5 in April 2010. ==Songs with the most weeks at number one==

;4 weeks • Greeeen – "Haruka" • Mr. Children – "Inori ~Namida no Kidou" • Che'Nelle – "Believe" ;3 weeks • AKB48 – "Flying Get" • Exile – "Motto Tsuyoku" • Hilcrhyme – "Daijōbu" • Hilcrhyme – "Shunkashūtō" • Infinity 16 welcomez Waka-danna from Shōnan no Kaze & Jay'ed – "Tsutaetai Koto ga Konna Aru noni" • Juju – "Kono Yoru o Tomete yo" • Juju with Jay'ed – "Ashita ga Kuru Nara" • Kara – "Go Go Summer!" • Kaoru to Tomoki, Tamani Mook – "Maru Maru Mori Mori!" • Kana Nishino – "Best Friend" • Kana Nishino – "If" • Kana Nishino – "Kimi tte" • Kana Nishino – "Watashitachi" ;2 weeks • AKB48 – "Heavy Rotation" • AKB48 – "Kaze wa Fuiteiru" • AKB48 – "Give Me Five!" • Namie Amuro – "Love Story" • Exile – "Futatsu no Kuchibiru" • Exile – "I Wish for You" • Exile – "Yasashii Hikari" • Masaharu Fukuyama – "Hatsukoi" • Ayumi Hamasaki – "Sunrise (Love Is All)" • Hilcrhyme – "Loose Leaf" • Jamosa feat. Jay'ed & Wakadanna – "Nanika Hitotsu" • Kaela Kimura – "Butterfly" • Koda Kumi – "Ai o Tomenaide" • Mr. Children – "Kazoe Uta" • Mika Nakashima – "Always" • Kana Nishino – "Aitakute Aitakute" • Kana Nishino – "Motto..." • Kana Nishino – "Distance" • Kana Nishino – "Sakura, I Love You?" • Fuyumi Sakamoto – "Mata Kimi ni Koi Shiteru" • Shota Shimizu x Miliyah Kato – "Forever Love" • Kana Uemura – "Toilet no Kamisama" ==See also==