Apparatus

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sensors Mode-S transponder

AA92FC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N78005 · BOEING 777-200 · operated by UNITED AIRLINES INC

Hex
AA92FC
Octal
52511374
Decimal
11,178,748
Country
US
Tail
N78005
Type
B772
No current signal · last broadcast 3h ago
Flights observed
201
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AA92FC.

Country allocation

The ICAO 24-bit address AA92FC falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
UAL919 - 12 2026-07-12
UAL984 - 11 2026-07-10
UAL926 - 10 2026-06-27
UAL969 - 7 2026-06-20
UAL933 United Airlines 6 2026-04-22
UAL927 - 6 2026-06-27
UAL918 - 6 2026-07-11
UAL57 - 6 2026-07-09
UAL56 United Airlines 6 2026-04-24
UAL968 - 5 2026-06-19
UAL852 - 5 2026-06-15
UAL45 United Airlines 5 2026-06-16
UAL96 - 4 2026-06-18
UAL924 United Airlines 4 2026-04-18
UAL915 - 4 2026-06-23
UAL673 - 4 2026-06-25
UAL59 United Airlines 4 2026-06-01
UAL44 United Airlines 4 2026-06-15
UAL22 United Airlines 4 2026-05-05
UAL914 - 3 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 UAL803 IAD → HND Jul 13, 17:20 UTCJul 14, 06:50 UTC13h 30m
2026-07-12 UAL919 LHR → IAD Jul 12, 11:45 UTCJul 12, 18:55 UTC7h 10m
2026-07-11 UAL918 IAD → LHR Jul 11, 23:00 UTCJul 12, 05:30 UTC6h 30m
2026-07-11 UAL914 - Jul 11, 11:05 UTCJul 11, 18:55 UTC7h 50m
2026-07-10 UAL990 SFO → CDG Jul 10, 22:25 UTCJul 11, 08:25 UTC10h 0m
2026-07-10 UAL984 - Jul 10, 07:55 UTCJul 10, 09:20 UTC1h 25m
2026-07-10 UAL984 CDG → SFO Jul 10, 08:08 UTCJul 10, 18:35 UTC10h 27m
2026-07-10 UAL984 CDG → SFO Jul 10, 08:08 UTCJul 10, 18:35 UTC10h 27m
2026-07-09 UAL57 - Jul 9, 23:20 UTCJul 10, 05:50 UTC6h 30m
2026-07-09 UAL121 BCN → EWR Jul 9, 10:22 UTCJul 9, 18:19 UTC7h 57m
2026-07-09 UAL121 - Jul 9, 10:30 UTCJul 9, 12:00 UTC1h 30m
2026-07-08 UAL120 EWR → BCN Jul 8, 23:45 UTCJul 9, 06:50 UTC7h 5m
2026-07-08 UAL18 - Jul 8, 08:00 UTCJul 8, 16:00 UTC8h 0m
2026-07-07 UAL19 EWR → MXP Jul 7, 22:05 UTCJul 8, 05:10 UTC7h 5m
2026-07-07 UAL18 MXP → EWR Jul 7, 08:06 UTCJul 7, 16:07 UTC8h 1m
2026-07-07 UAL18 - Jul 7, 08:00 UTCJul 7, 09:00 UTC1h 0m
2026-07-06 UAL19 EWR → MXP Jul 6, 22:18 UTCJul 7, 05:40 UTC7h 22m
2026-07-06 UAL19 - Jul 6, 22:20 UTCJul 6, 23:15 UTC55m
2026-07-06 UAL148 - Jul 6, 00:20 UTCJul 6, 02:55 UTC2h 35m
2026-07-06 UAL148 GRU → EWR Jul 6, 00:21 UTCJul 6, 09:24 UTC9h 3m
2026-07-05 UAL149 - Jul 5, 12:45 UTCJul 5, 21:35 UTC8h 50m
2026-07-04 UAL905 - Jul 4, 08:50 UTCJul 4, 16:05 UTC7h 15m
2026-07-03 UAL918 IAD → LHR Jul 3, 23:00 UTCJul 4, 05:45 UTC6h 45m
2026-07-03 UAL885 - Jul 3, 08:55 UTCJul 3, 18:00 UTC9h 5m
2026-07-02 UAL884 IAD → FCO Jul 2, 22:50 UTCJul 3, 06:35 UTC7h 45m
2026-07-02 UAL919 - Jul 2, 11:25 UTCJul 2, 19:05 UTC7h 40m
2026-07-02 UAL919 LHR → IAD Jul 2, 11:40 UTCJul 2, 19:02 UTC7h 22m
2026-07-01 UAL880 IAH → LHR Jul 1, 21:45 UTCJul 2, 06:20 UTC8h 35m
2026-07-01 UAL818 - Jul 1, 00:05 UTCJul 1, 10:15 UTC10h 10m
2026-06-30 UAL819 - Jun 30, 03:25 UTCJun 30, 10:40 UTC7h 15m
2026-06-30 UAL819 - Jun 30, 01:35 UTCJun 30, 01:55 UTC20m
2026-06-29 UAL160 - Jun 29, 10:44 UTCJun 29, 21:19 UTC10h 35m
2026-06-28 UAL194 SFO → MUC Jun 28, 21:28 UTCJun 29, 07:50 UTC10h 22m
2026-06-28 UAL194 - Jun 28, 21:20 UTCJun 29, 06:59 UTC9h 40m
2026-06-27 UAL927 FRA → SFO Jun 27, 16:26 UTCJun 28, 03:19 UTC10h 53m
2026-06-27 UAL927 - Jun 27, 16:24 UTCJun 28, 03:19 UTC10h 55m
2026-06-27 UAL926 SFO → FRA Jun 27, 02:54 UTCJun 27, 13:37 UTC10h 43m
2026-06-27 UAL926 - Jun 27, 02:59 UTCJun 27, 13:00 UTC10h 0m
2026-06-26 UAL3019 IAD → SFO Jun 26, 05:35 UTCJun 26, 10:55 UTC5h 20m
2026-06-25 UAL673 KEF → IAD Jun 25, 20:54 UTCJun 26, 02:30 UTC5h 35m
2026-06-25 UAL673 KEF → IAD Jun 25, 20:41 UTCJun 26, 02:23 UTC5h 42m
2026-06-25 UAL673 BCN → KEF Jun 25, 14:29 UTCJun 25, 19:05 UTC4h 35m
2026-06-25 UAL672 SFO → BCN Jun 25, 01:30 UTCJun 25, 12:10 UTC10h 40m
2026-06-24 UAL984 CDG → SFO Jun 24, 07:39 UTCJun 24, 17:48 UTC10h 9m
2026-06-24 UAL984 CDG → SFO Jun 24, 07:39 UTCJun 24, 17:44 UTC10h 5m
2026-06-24 UAL984 - Jun 24, 07:20 UTCJun 24, 09:00 UTC1h 40m
2026-06-23 UAL915 IAD → CDG Jun 23, 22:34 UTCJun 24, 05:15 UTC6h 40m
2026-06-23 UAL919 - Jun 23, 11:54 UTCJun 23, 19:50 UTC7h 55m
2026-06-23 UAL919 LHR → IAD Jun 23, 11:50 UTCJun 23, 19:48 UTC7h 58m
2026-06-22 UAL918 IAD → LHR Jun 22, 23:45 UTCJun 23, 06:09 UTC6h 25m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N78005 page for operator, model, and routing details .

Mode-S AA92FC frequently asked

What is Mode-S code AA92FC?
AA92FC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N78005.
Where is Mode-S AA92FC registered?
Mode-S code AA92FC is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AA92FC broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA92FC, octal 52511374, decimal 11,178,748.
What flights does AA92FC operate?
Mode-S AA92FC has broadcast 20 distinct callsigns, including UAL919, UAL984, UAL926, UAL969, UAL933.