Japaneseかずや@back number is on Twitter (X) as @kojimakazuya, with 245,716 followers and 4,735 posts. It has been on X since July 2010, an account age of 16 years.
Engagement
Early reading. We have captured 6 original posts for this account, below the 8 we require before treating a median as settled. The numbers above describe what we have seen so far, not a finished profile of the account.
A typical post picks up 4.4K interactions against 246K followers, an engagement rate of 1.77%. Posts are seen about 71K times each, and 6.14% of those impressions turn into an interaction. That is about 28.9% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.27 posts a day over the last 30 days, though only 13% of days saw any activity at all.
Measured over 6 original posts from a 30-day window, last computed on September 27, 2026. Recurring tags: #backnumber, #フジタユウスケ.
Full engagement reportFollower growth
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Bio
back numberのベースです。 よろしくお願いします。
Notable followers
The biggest accounts in our directory following @kojimakazuya.
かずや@back number on Twitter (X) - frequently asked questions
- What is the Twitter handle for かずや@back number?
- かずや@back number posts on Twitter (X) as @kojimakazuya. The profile is at x.com/kojimakazuya, and the View on X button at the top of this page opens it.
- How many followers does かずや@back number have on Twitter?
- かずや@back number (@kojimakazuya) has 245,716 followers on Twitter (X). The count is refreshed continuously from public data.
- When did かずや@back number join Twitter?
- かずや@back number joined Twitter (X) in July 2010. The @kojimakazuya account is 16 years old. Searches for かずや@back number age often mean a personal age, which we do not publish. The figure here is the account age only.