N21129
Built 2003 · registered US
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This aircraft
Type photo — not this specific aircraftPhoto: Adrian Pingstone (Arpingstone) · Public domain135 for sale now
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View all 44 listings →Performance specs
- Range
- 2,000 nm
- Cruise speed
- —
- Max speed
- 320 kt
- Service ceiling
- 25,000 ft
- Takeoff distance
- 1720 m
- Landing distance
- 1280 m
- MTOW
- —
- Empty weight
- —
- Fuel capacity
- 7,400 L
- Length
- 27.9 m
- Wingspan
- 20.0 m
- Height
- 6.7 m
- Seats
- 55
- Max passengers
- —
Flight activity
(123 tracking legs recorded)- Last 30 days
- 4
- Last 90 days
- 40
- Last seen
- 2 Nov 2026
- Tracked since
- 9 May 2026
Frequent routes: KIAD → KIAD (23) · KIAD → KLRD (3) · KLRD → KIAD (2)
- … → KLIT1 Nov 2026 · 16h 59m
- KIAD → KIAD31 Oct 2026 · 7h 28m
- KIAD → KIAD3 Sept 2026 · 1h 53m
- KIAD → KIAD30 Aug 2026 · 2h 48m
- … → KIAD30 Aug 2026 · 8h 08m
- KIAD → KIAD30 Aug 2026 · 8h 09m
- KIAD → KIAD28 Aug 2026 · 2h 03m
- KIAD → KIAD28 Aug 2026 · 5h 03m
- … → KIAD28 Aug 2026 · 12h 10m
- KIAD → KIAD28 Aug 2026 · 2h 34m
Showing the 10 most recent distinct flights. The total counts every raw ADS-B tracking leg, including repeat observations and sub-5-minute artifacts.
From ADS-B observations collected since May 2026. Coverage depends on ground-receiver density; gaps do not mean the aircraft did not fly.
Common. More common than 97% of the aircraft models we track.
Other 135 airframes by tail number — same model as N21129.
- N650TB2017
- N650JF2015
- PT-LEG2014
- PR-CBY2013
- PT-FKK2013
- PP-LEG2013
- N333BH2013
- PR-FPS2013
- N284CP2013
- PR-CRG2013
- N975DC2013
- N650RJ2013
- N974DC2013
- PP-BLO2013
- PP-NLR2012
- N7965M2012
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—Registration history
(1)- N21129USACTIVEUNITED AIRLINES INC2019 – present
Owner names are published by the issuing civil registry (FAA / CCARCS / CASA / ANAC / NZ CAA). Owner addresses present in the source are not republished here. Registered owner? Request removal
Operator history
(1)- CommutAirOperator2026 – present
What aircraft model is N21129?
N21129 is a Embraer 135, built in 2003. Sprinkle's record for N21129 covers its lineage, ownership history and specifications.
Is N21129 currently active?
Registry records list N21129's status as Active, registered in United States — a Embraer 135.
What is the manufacturer serial number (MSN) of N21129?
N21129 carries manufacturer serial number (MSN) 145703, the serial assigned to this Embraer 135 airframe when it was built.
What is the ICAO24 / Mode S code for N21129?
N21129's ICAO24 (Mode S) transponder code is A1BFF9 — the hex address the Mode S transponder on this Embraer 135 broadcasts.










