#a440
Live, measured metrics for the hashtag #a440 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #a440
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Day-by-day usage
measured · mas.to (Mastodon public tags API) · fetched 2026-11-10 08:58 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mas.to (Mastodon public search API) · fetched 2026-11-10 08:58 UTCLive pulse
measured · mas.to (Mastodon tag timeline) · fetched 2026-11-10 08:58 UTCEverything below is measured over the latest 3 public posts (spanning ~26821 hours).
Posting hours (UTC)
Languages: English (3)
Avg boosts / post: 0.7
Top of the latest posts
Match iReal Pro's backing tracks to any instrument that isn't at standard 440 pitch. Not every instrument sits at the standard concert pitch of A4 = 440 Hz. Acoustic pianos drift over time, many European ensembles tune to 442, and some horn
https://www.youtube.com/watch?v=N4nMk9J0Rio #RISCOS #Acorn #A440
Firefighting aircraft fighting the 20+ acres #WhittleFire in #AngelsCamp #CalaverasCounty, #CA share.watchduty.org/i/6181 broadcastify.com/webPlayer/28469 #CalFire Out of #ColumbiaAirAttackBase #A440 #N401DF Air Tactical Aircraft #C205 #N48
#a440 across platforms
every network with a public tag surfaceFollow #a440 straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/a440