Apparatus

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sensors Mode-S transponder

A12A82

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N17408 · operated by WILMINGTON TRUST COMPANY TRUSTEE

Hex
A12A82
Octal
50225202
Decimal
10,562,178
Country
US
Tail
N17408
Type
B39M
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
470
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A12A82.

Country allocation

The ICAO 24-bit address A12A82 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
UAL2452 United Airlines 7 2026-06-23
UAL1543 - 6 2026-07-02
UAL700 - 5 2026-07-14
UAL2219 - 5 2026-07-02
UAL672 United Airlines 4 2026-04-22
UAL620 United Airlines 4 2026-06-23
UAL2044 United Airlines 4 2026-04-18
UAL1467 - 4 2026-07-10
UAL1043 United Airlines 4 2026-04-25
UAL1042 United Airlines 4 2026-04-25
UAL1031 - 4 2026-07-18
UAL727 United Airlines 3 2026-05-29
UAL2624 - 3 2026-07-14
UAL259 United Airlines 3 2026-04-15
UAL2474 - 3 2026-06-27
UAL2469 - 3 2026-07-20
UAL2390 United Airlines 3 2026-07-24
UAL2382 - 3 2026-06-21
UAL2380 United Airlines 3 2026-06-13
UAL2373 United Airlines 3 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL679 EWR → LAS Jul 26, 20:05 UTCJul 26, 22:30 UTC2h 25m
2026-07-26 UAL619 EWR → SJD Jul 26, 16:10 UTCJul 26, 18:35 UTC2h 25m
2026-07-26 UAL1010 OMA → SFO Jul 26, 12:15 UTCJul 26, 14:05 UTC1h 50m
2026-07-26 UAL1730 IAD → SEA Jul 26, 00:20 UTCJul 26, 02:35 UTC2h 15m
2026-07-25 UAL8161 DEN → SNA Jul 25, 18:50 UTCJul 25, 22:55 UTC4h 5m
2026-07-25 UAL343 DCA → ORD Jul 25, 15:05 UTCJul 25, 16:20 UTC1h 15m
2026-07-25 UAL2175 SLC → DEN Jul 25, 12:40 UTCJul 25, 13:40 UTC1h 0m
2026-07-25 UAL2175 SLC → DEN Jul 25, 12:43 UTCJul 25, 13:40 UTC57m
2026-07-25 UAL1962 MCO → ORD Jul 25, 07:00 UTCJul 25, 10:35 UTC3h 35m
2026-07-25 UAL2372 LGA → IAH Jul 25, 03:25 UTCJul 25, 04:05 UTC40m
2026-07-24 UAL2372 LGA → IAH Jul 24, 23:05 UTCJul 24, 23:20 UTC15m
2026-07-24 UAL2373 LAX → KOA Jul 24, 21:05 UTCJul 24, 21:15 UTC10m
2026-07-24 UAL2373 LAX → KOA Jul 24, 16:15 UTCJul 24, 16:40 UTC25m
2026-07-24 UAL2373 LAX → KOA Jul 24, 16:18 UTCJul 24, 21:10 UTC4h 52m
2026-07-24 UAL1251 PHX → SFO Jul 24, 09:15 UTCJul 24, 14:00 UTC4h 45m
2026-07-24 UAL2390 DEN → SFO Jul 24, 02:25 UTCJul 24, 07:40 UTC5h 15m
2026-07-24 UAL2390 DEN → SFO Jul 24, 02:09 UTCJul 24, 07:41 UTC5h 32m
2026-07-23 UAL1195 DTW → ORD Jul 23, 22:45 UTCJul 24, 00:45 UTC2h 0m
2026-07-23 UAL730 - Jul 23, 19:50 UTCJul 23, 20:10 UTC20m
2026-07-23 UAL1111 DEN → COS Jul 23, 17:55 UTCJul 23, 18:15 UTC20m
2026-07-23 UAL1111 DEN → COS Jul 23, 17:54 UTCJul 23, 17:56 UTC2m
2026-07-23 UAL2412 DEN → MSP Jul 23, 12:55 UTCJul 23, 16:25 UTC3h 30m
2026-07-23 UAL1605 LAX → BWI Jul 23, 06:55 UTCJul 23, 11:20 UTC4h 25m
2026-07-22 UAL8113 YYC → YQU Jul 22, 23:50 UTCJul 23, 04:15 UTC4h 25m
2026-07-22 UAL1621 LAX → MCO Jul 22, 18:00 UTCJul 22, 22:25 UTC4h 25m
2026-07-22 UAL2113 EWR → ATL Jul 22, 11:30 UTCJul 22, 15:45 UTC4h 15m
2026-07-21 UAL1571 IAH → BOS Jul 21, 23:55 UTCJul 22, 02:10 UTC2h 15m
2026-07-21 UAL2203 - Jul 21, 07:35 UTCJul 21, 09:55 UTC2h 20m
2026-07-20 UAL742 LGA → IAH Jul 20, 22:45 UTCJul 21, 01:00 UTC2h 14m
2026-07-20 UAL1795 - Jul 20, 18:30 UTCJul 20, 20:45 UTC2h 15m
2026-07-20 UAL2469 - Jul 20, 14:55 UTCJul 20, 16:30 UTC1h 35m
2026-07-20 UAL2469 IAH → MSP Jul 20, 14:47 UTCJul 20, 17:08 UTC2h 21m
2026-07-20 UAL1459 - Jul 20, 04:55 UTCJul 20, 10:10 UTC5h 15m
2026-07-20 UAL1459 POS → IAH Jul 20, 04:42 UTCJul 20, 10:04 UTC5h 22m
2026-07-19 UAL2353 IAH → POS Jul 19, 21:55 UTCJul 20, 03:00 UTC5h 5m
2026-07-19 UAL2353 IAH → POS Jul 19, 22:10 UTCJul 20, 03:11 UTC5h 1m
2026-07-19 UAL1795 - Jul 19, 17:20 UTCJul 19, 19:30 UTC2h 10m
2026-07-19 UAL2469 IAH → MSP Jul 19, 13:15 UTCJul 19, 15:35 UTC2h 20m
2026-07-19 UAL1459 - Jul 19, 05:05 UTCJul 19, 10:10 UTC5h 5m
2026-07-18 UAL2353 IAH → POS Jul 18, 22:05 UTCJul 19, 03:00 UTC4h 55m
2026-07-18 UAL1031 - Jul 18, 15:50 UTCJul 18, 18:50 UTC3h 0m
2026-07-17 UAL1031 - Jul 17, 22:35 UTCJul 18, 18:50 UTC20h 16m
2026-07-17 UAL1031 - Jul 17, 21:15 UTCJul 18, 18:50 UTC21h 36m
2026-07-17 UAL1034 - Jul 17, 20:04 UTCJul 18, 18:30 UTC22h 26m
2026-07-17 UAL1181 MIA → EWR Jul 17, 15:25 UTCJul 17, 18:00 UTC2h 35m
2026-07-17 UAL2406 - Jul 17, 00:20 UTCJul 17, 03:05 UTC2h 45m
2026-07-16 UAL2339 - Jul 16, 20:29 UTCJul 16, 22:05 UTC1h 35m
2026-07-16 UAL1318 - Jul 16, 17:30 UTCJul 16, 18:59 UTC1h 30m
2026-07-16 UAL2611 - Jul 16, 13:15 UTCJul 16, 15:10 UTC1h 55m
2026-07-16 UAL8102 - Jul 16, 01:15 UTCJul 16, 03:05 UTC1h 50m

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 N17408 page for operator, model, and routing details .

Mode-S A12A82 frequently asked

What is Mode-S code A12A82?
A12A82 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N17408.
Where is Mode-S A12A82 registered?
Mode-S code A12A82 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 A12A82 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A12A82, octal 50225202, decimal 10,562,178.
What flights does A12A82 operate?
Mode-S A12A82 has broadcast 20 distinct callsigns, including UAL2452, UAL1543, UAL700, UAL2219, UAL672.