Apparatus

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sensors Mode-S transponder

AA92F8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N78001 · BOEING 777-200 · operated by UNITED AIRLINES INC

Hex
AA92F8
Octal
52511370
Decimal
11,178,744
Country
US
Tail
N78001
Type
B772
No current signal · last broadcast 1h ago
Flights observed
153
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AA92F8.

Country allocation

The ICAO 24-bit address AA92F8 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
UAL97 - 11 2026-07-12
UAL889 - 11 2026-07-13
UAL888 - 10 2026-07-12
UAL969 United Airlines 8 2026-05-07
UAL949 United Airlines 7 2026-04-14
UAL927 - 7 2026-07-05
UAL968 United Airlines 6 2026-05-06
UAL96 - 6 2026-07-11
UAL926 United Airlines 5 2026-05-25
UAL804 - 4 2026-07-04
UAL673 - 4 2026-07-14
UAL57 United Airlines 4 2026-06-28
UAL506 - 4 2026-07-10
UAL131 - 4 2026-07-03
UAL984 - 3 2026-06-29
UAL919 United Airlines 3 2026-06-02
UAL918 United Airlines 3 2026-06-01
UAL875 United Airlines 3 2026-05-30
UAL803 United Airlines 3 2026-06-04
UAL507 - 3 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 UAL673 - Jul 14, 14:20 UTCJul 14, 16:00 UTC1h 40m
2026-07-14 UAL672 SFO → BCN Jul 14, 01:25 UTCJul 14, 11:50 UTC10h 25m
2026-07-13 UAL889 - Jul 13, 12:25 UTCJul 13, 23:05 UTC10h 40m
2026-07-12 UAL888 - Jul 12, 18:05 UTCJul 13, 05:31 UTC11h 25m
2026-07-12 UAL97 BNE → SFO Jul 12, 00:43 UTCJul 12, 13:02 UTC12h 19m
2026-07-12 UAL97 - Jul 12, 00:40 UTCJul 12, 13:05 UTC12h 25m
2026-07-12 UAL97 BNE → SFO Jul 12, 00:43 UTCJul 12, 13:01 UTC12h 18m
2026-07-11 UAL96 SFO → BNE Jul 11, 07:00 UTCJul 11, 21:00 UTC14h 0m
2026-07-10 UAL506 - Jul 10, 15:05 UTCJul 11, 03:25 UTC12h 20m
2026-07-10 UAL507 SFO → FCO Jul 10, 00:23 UTCJul 10, 11:47 UTC11h 24m
2026-07-10 UAL507 - Jul 10, 00:35 UTCJul 10, 03:20 UTC2h 45m
2026-07-09 UAL889 - Jul 9, 10:55 UTCJul 9, 12:50 UTC1h 55m
2026-07-09 UAL889 PEK → SFO Jul 9, 09:56 UTCJul 9, 21:11 UTC11h 15m
2026-07-09 UAL889 - Jul 9, 04:10 UTCJul 9, 21:15 UTC17h 5m
2026-07-08 UAL888 SFO → PEK Jul 8, 18:55 UTCJul 9, 07:36 UTC12h 41m
2026-07-08 UAL888 - Jul 8, 18:55 UTCJul 9, 06:00 UTC11h 5m
2026-07-07 UAL889 PEK → SFO Jul 7, 11:35 UTCJul 7, 21:50 UTC10h 15m
2026-07-06 UAL888 SFO → PEK Jul 6, 18:15 UTCJul 7, 07:02 UTC12h 47m
2026-07-06 UAL888 SFO → PEK Jul 6, 18:10 UTCJul 7, 04:00 UTC9h 50m
2026-07-05 UAL927 - Jul 5, 15:55 UTCJul 6, 03:10 UTC11h 15m
2026-07-05 UAL927 FRA → SFO Jul 5, 15:51 UTCJul 6, 03:03 UTC11h 12m
2026-07-05 UAL932 IAD → FRA Jul 5, 03:08 UTCJul 5, 10:29 UTC7h 21m
2026-07-05 UAL932 - Jul 5, 03:05 UTCJul 5, 05:05 UTC2h 0m
2026-07-04 UAL804 HND → IAD Jul 4, 08:15 UTCJul 4, 20:00 UTC11h 45m
2026-07-03 UAL131 EWR → HND Jul 3, 15:23 UTCJul 4, 05:45 UTC14h 22m
2026-07-03 UAL131 - Jul 3, 15:25 UTCJul 3, 23:20 UTC7h 55m
2026-07-02 UAL1333 SFO → EWR Jul 2, 21:20 UTCJul 3, 02:00 UTC4h 40m
2026-07-02 UAL673 - Jul 2, 06:45 UTCJul 2, 11:50 UTC5h 5m
2026-07-01 UAL673 - Jul 1, 18:25 UTCJul 1, 19:55 UTC1h 30m
2026-07-01 UAL673 BCN → EWR Jul 1, 17:36 UTCJul 2, 02:17 UTC8h 41m
2026-07-01 UAL672 SFO → BCN Jul 1, 01:20 UTCJul 1, 11:50 UTC10h 30m
2026-06-30 UAL59 - Jun 30, 11:35 UTCJun 30, 13:20 UTC1h 45m
2026-06-30 UAL59 FRA → SFO Jun 30, 11:44 UTCJun 30, 22:00 UTC10h 16m
2026-06-29 UAL58 SFO → FRA Jun 29, 21:22 UTCJun 30, 07:30 UTC10h 8m
2026-06-29 UAL58 - Jun 29, 21:19 UTCJun 30, 07:40 UTC10h 21m
2026-06-29 UAL984 - Jun 29, 07:55 UTCJun 29, 09:29 UTC1h 35m
2026-06-29 UAL984 CDG → SFO Jun 29, 07:48 UTCJun 29, 18:01 UTC10h 13m
2026-06-28 UAL57 EWR → CDG Jun 28, 22:58 UTCJun 29, 05:25 UTC6h 27m
2026-06-28 UAL57 EWR → CDG Jun 28, 22:59 UTCJun 29, 05:30 UTC6h 30m
2026-06-07 UAL148 GRU → EWR Jun 7, 00:19 UTCJun 7, 09:15 UTC8h 55m
2026-06-06 UAL149 EWR → GRU Jun 6, 01:31 UTCJun 6, 10:12 UTC8h 41m
2026-06-06 UAL149 EWR → GRU Jun 6, 01:25 UTCJun 6, 01:55 UTC30m
2026-06-05 UAL130 HND → EWR Jun 5, 09:30 UTCJun 5, 21:55 UTC12h 25m
2026-06-04 UAL803 IAD → HND Jun 4, 17:35 UTCJun 5, 06:36 UTC13h 1m
2026-06-04 UAL803 IAD → HND Jun 4, 17:30 UTCJun 5, 06:45 UTC13h 15m
2026-06-03 UAL943 LIS → IAD Jun 3, 11:51 UTCJun 3, 19:11 UTC7h 20m
2026-06-03 UAL943 LIS → IAD Jun 3, 11:40 UTCJun 3, 12:10 UTC30m
2026-06-03 UAL942 IAD → LIS Jun 3, 02:55 UTCJun 3, 09:00 UTC6h 5m
2026-06-02 UAL919 LHR → IAD Jun 2, 11:55 UTCJun 2, 18:50 UTC6h 55m
2026-06-01 UAL918 IAD → LHR Jun 1, 22:55 UTCJun 2, 05:40 UTC6h 45m

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 N78001 page for operator, model, and routing details .

Mode-S AA92F8 frequently asked

What is Mode-S code AA92F8?
AA92F8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N78001.
Where is Mode-S AA92F8 registered?
Mode-S code AA92F8 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 AA92F8 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA92F8, octal 52511370, decimal 11,178,744.
What flights does AA92F8 operate?
Mode-S AA92F8 has broadcast 20 distinct callsigns, including UAL97, UAL889, UAL888, UAL969, UAL949.