N21723 — 737NG 724/W of United Airlines INC
Track it live on the map
See N21723 and the surrounding airspace in real time in the spotter radar — get the Aero.Academy app now.
Live status
Last seen on radar: July 14, 2026.
Facts
- Type
- 737NG 724/W
- Manufacturer
- Boeing
- Operator
- United Airlines INC
- Country
- United States
- Built
- 1999
- Serial (MSN)
- 28790
- ICAO hex
- A1D63D
Rarity & spotters
★★★☆☆N21723 is one of 222 737NG 724/W in our database.
Activity
From our radar history of the last 7 days.
- Flights
- 14
- Airborne time
- 12.4 h
- Max altitude
- 39,000 ft
- Max speed
- 545 kt
- Typical cruise
- 34,000 ft · 457 kt
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Airborne minutes per weekday (UTC)
00
04
08
12
16
20
Airborne minutes per hour of day (UTC)
Likely based at KBDL — judging by take-off and landing patterns over the last 30 days.
More aircraft operated by United Airlines INC
More 737NG 724/W
Track it live on the map
See N21723 and the surrounding airspace in real time in the spotter radar — get the Aero.Academy app now.