Apparatus

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flight Aircraft

N12221

BOEING 737-800

Operated by UNITED AIRLINES INC

Tail number
N12221
Type
B738
Mode-S
A05DD8
Not currently tracked · last seen 4h ago
Flights observed
351 showing last 50
Avg flight time
1h 56m
Typical route
DEN → FLL
Last seen
4h ago

Last known area

Map centered near N12221's most recent activity.

Recent flights last 50

DateRouteTakeoffLandingDuration
2026-07-14 DEN → SBA Jul 14, 02:15 UTCJul 14, 04:15 UTC2h 0m
2026-07-13 SEA → DEN Jul 13, 22:45 UTCJul 14, 01:00 UTC2h 15m
2026-07-13 - Jul 13, 19:30 UTCJul 13, 21:20 UTC1h 50m
2026-07-13 - Jul 13, 17:15 UTCJul 13, 18:10 UTC55m
2026-07-13 DEN → PHX Jul 13, 14:45 UTCJul 13, 16:10 UTC1h 25m
2026-07-13 STL → DEN Jul 13, 10:20 UTCJul 13, 12:00 UTC1h 40m
2026-07-13 ORD → STL Jul 13, 01:25 UTCJul 13, 02:05 UTC40m
2026-07-12 - Jul 12, 22:30 UTCJul 12, 23:50 UTC1h 20m
2026-07-12 ROC → ORD Jul 12, 22:13 UTCJul 12, 23:54 UTC1h 41m
2026-07-12 - Jul 12, 19:55 UTCJul 12, 21:10 UTC1h 15m
2026-07-11 - Jul 11, 17:45 UTCJul 11, 19:40 UTC1h 55m
2026-07-11 - Jul 11, 12:30 UTCJul 11, 14:00 UTC1h 30m
2026-07-11 ORD → LGA Jul 11, 12:33 UTCJul 11, 14:00 UTC1h 27m
2026-07-10 SMF → ORD Jul 10, 22:05 UTCJul 11, 01:30 UTC3h 25m
2026-07-10 DEN → SMF Jul 10, 18:45 UTCJul 10, 20:50 UTC2h 5m
2026-07-10 - Jul 10, 12:15 UTCJul 10, 15:50 UTC3h 35m
2026-07-10 DEN → FLL Jul 10, 07:10 UTCJul 10, 10:40 UTC3h 30m
2026-07-10 DEN → FLL Jul 10, 07:10 UTCJul 10, 10:45 UTC3h 35m
2026-07-10 - Jul 10, 05:30 UTCJul 10, 05:55 UTC25m
2026-07-10 - Jul 10, 01:25 UTCJul 10, 05:55 UTC4h 30m
2026-07-10 FLL → DEN Jul 10, 01:27 UTCJul 10, 05:11 UTC3h 44m
2026-07-09 - Jul 9, 23:20 UTCJul 10, 00:05 UTC45m
2026-07-09 - Jul 9, 22:05 UTCJul 9, 22:50 UTC45m
2026-07-09 - Jul 9, 14:30 UTCJul 9, 16:10 UTC1h 40m
2026-07-09 ABQ → IAH Jul 9, 14:17 UTCJul 9, 16:04 UTC1h 47m
2026-07-09 - Jul 9, 02:10 UTCJul 9, 03:50 UTC1h 40m
2026-07-07 - Jul 7, 23:40 UTCJul 8, 00:20 UTC40m
2026-07-07 DEN → SAT Jul 7, 20:10 UTCJul 7, 21:50 UTC1h 40m
2026-07-07 PSQ → DEN Jul 7, 14:25 UTCJul 7, 17:45 UTC3h 20m
2026-07-07 - Jul 7, 03:10 UTCJul 7, 04:45 UTC1h 35m
2026-07-06 - Jul 6, 21:40 UTCJul 6, 23:50 UTC2h 10m
2026-07-06 - Jul 6, 16:20 UTCJul 6, 19:40 UTC3h 20m
2026-07-06 YYC → DEN Jul 6, 01:30 UTCJul 6, 03:30 UTC2h 0m
2026-07-05 DEN → YYC Jul 5, 21:55 UTCJul 5, 23:55 UTC2h 0m
2026-07-05 FLV → DEN Jul 5, 18:45 UTCJul 5, 20:05 UTC1h 20m
2026-07-05 - Jul 5, 16:05 UTCJul 5, 17:20 UTC1h 15m
2026-07-05 - Jul 5, 13:15 UTCJul 5, 13:55 UTC40m
2026-07-04 DEN → DRO Jul 4, 17:37 UTCJul 4, 18:17 UTC40m
2026-07-04 - Jul 4, 17:25 UTCJul 4, 18:00 UTC35m
2026-07-04 - Jul 4, 12:20 UTCJul 4, 15:50 UTC3h 30m
2026-07-04 DEN → PHL Jul 4, 06:05 UTCJul 4, 09:25 UTC3h 20m
2026-07-04 - Jul 4, 01:55 UTCJul 4, 03:35 UTC1h 40m
2026-07-03 DEN → GEG Jul 3, 23:10 UTCJul 4, 01:05 UTC1h 55m
2026-07-03 DEN → DEN Jul 3, 18:00 UTCJul 3, 21:50 UTC3h 50m
2026-07-03 BUF → DEN Jul 3, 13:10 UTCJul 3, 16:15 UTC3h 5m
2026-07-03 - Jul 3, 01:15 UTCJul 3, 04:00 UTC2h 45m
2026-07-02 EWR → SFO Jul 2, 20:35 UTCJul 2, 21:30 UTC55m
2026-07-02 DEN → SLC Jul 2, 18:02 UTCJul 2, 18:53 UTC51m
2026-07-02 DEN → SLC Jul 2, 17:55 UTCJul 2, 18:55 UTC1h 0m
2026-07-02 - Jul 2, 14:55 UTCJul 2, 16:00 UTC1h 5m

Specifications

Registration N12221
Aircraft type BOEING 737-800 (B738)
Operator UNITED AIRLINES INC
Mode-S code A05DD8 · 50056730 (octal)

Looking for transponder-level data? View the Mode-S A05DD8 page for country allocation, callsign history, and ADS-B signal details.

N12221 frequently asked

What type of aircraft is N12221?
N12221 is a BOEING 737-800 (ICAO type code B738).
Who operates N12221?
N12221 is operated by UNITED AIRLINES INC.
What is the Mode-S transponder code for N12221?
N12221 broadcasts on Mode-S (ICAO 24-bit) address A05DD8 (octal 50056730). View the transponder page.
What route does N12221 typically fly?
N12221 most frequently flies between DEN and FLL based on observed flights.
Where is N12221 right now?
N12221 is not currently being tracked; last seen 4h ago.