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N21129

Built 2003 · registered US

Free alerts when N21129's registration or status changes, or the 135 market moves.

N21129 — photo of this aircraftThis aircraft
Photo © Philipp SchützView on Planespotters.net ↗
Representative photo of a Embraer 135Type photo — not this specific aircraftPhoto: Adrian Pingstone (Arpingstone) · Public domain
This aircraft is a
Embraer 135
Full specs

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Performance specs

Performance
Range
2,000 nm
Cruise speed
—
Max speed
320 kt
Service ceiling
25,000 ft
Takeoff distance
1720 m
Landing distance
1280 m
Weights
MTOW
—
Empty weight
—
Fuel capacity
7,400 L
Dimensions
Length
27.9 m
Wingspan
20.0 m
Height
6.7 m
Capacity
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.

How common is this aircraft?
1,232Embraer 135 registered worldwide

Common. More common than 97% of the aircraft models we track.

More 135 aircraft

Other 135 airframes by tail number — same model as N21129.

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What to do next

Registration history

(1)
  • N21129USACTIVE
    UNITED AIRLINES INC
    2019 – 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)
  • CommutAir
    Operator
    2026 – present
N21129 — frequently asked
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.