Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A12AE6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N17433 · BOEING 737 MAX 9 · operated by UNITED AIRLINES INC

Hex
A12AE6
Octal
50225346
Decimal
10,562,278
Country
US
Tail
N17433
Type
B39M
Broadcasting now · callsign UAL2664 · 35,000 ft
Flights observed
413
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Current position

A12AE6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A12AE6 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
UAL2011 United Airlines 8 2026-04-17
UAL2219 - 6 2026-07-11
UAL731 - 5 2026-07-06
UAL663 - 5 2026-06-21
UAL639 - 5 2026-07-02
UAL2024 United Airlines 5 2026-06-07
UAL557 - 4 2026-06-19
UAL1372 United Airlines 4 2026-04-17
UAL1330 - 4 2026-04-13
UAL1321 - 4 2026-07-06
UAL1249 - 4 2026-07-10
UAL1206 - 4 2026-07-08
UAL1192 United Airlines 4 2026-06-07
UAL1043 - 4 2026-06-24
UAL1042 - 4 2026-06-23
UAL796 United Airlines 3 2026-04-16
UAL754 United Airlines 3 2026-04-21
UAL693 - 3 2026-07-08
UAL2464 United Airlines 3 2026-04-14
UAL2223 United Airlines 3 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2223 CPT → IAD Jul 26, 21:25 UTCJul 26, 21:30 UTC5m
2026-07-26 UAL2223 CPT → IAD Jul 26, 16:35 UTCJul 26, 19:00 UTC2h 25m
2026-07-26 UAL2326 ORD → TPA Jul 26, 13:10 UTCJul 26, 15:15 UTC2h 5m
2026-07-26 UAL1503 ORD → BOS Jul 26, 00:20 UTCJul 26, 03:35 UTC3h 15m
2026-07-26 UAL1503 ORD → BOS Jul 26, 00:33 UTCJul 26, 03:23 UTC2h 50m
2026-07-25 UAL2241 EWR → SAT Jul 25, 17:25 UTCJul 25, 22:40 UTC5h 15m
2026-07-25 UAL276 ATL → EWR Jul 25, 13:05 UTCJul 25, 14:50 UTC1h 45m
2026-07-24 UAL520 SFO → JFK Jul 24, 21:40 UTCJul 25, 02:25 UTC4h 45m
2026-07-24 UAL2002 SFO → IAD Jul 24, 13:20 UTCJul 24, 15:30 UTC2h 10m
2026-07-24 UAL2002 SFO → IAD Jul 24, 13:22 UTCJul 24, 19:09 UTC5h 47m
2026-07-24 UAL1665 SFO → BOS Jul 24, 06:30 UTCJul 24, 11:30 UTC5h 0m
2026-07-24 UAL2620 SFO → MSY Jul 24, 00:00 UTCJul 24, 04:55 UTC4h 55m
2026-07-23 UAL609 EWR → RDU Jul 23, 20:05 UTCJul 23, 22:05 UTC2h 0m
2026-07-23 UAL1349 RSW → IAD Jul 23, 14:25 UTCJul 23, 16:35 UTC2h 10m
2026-07-23 UAL2210 SAN → IAH Jul 23, 06:25 UTCJul 23, 11:30 UTC5h 5m
2026-07-23 UAL3752 CLE → ORD Jul 23, 03:25 UTCJul 23, 04:15 UTC50m
2026-07-23 UAL3781 LGB → CLE Jul 23, 01:10 UTCJul 23, 02:05 UTC55m
2026-07-22 UAL3751 - Jul 22, 21:50 UTCJul 22, 22:05 UTC15m
2026-07-22 UAL1730 IAD → SEA Jul 22, 01:40 UTCJul 22, 04:05 UTC2h 25m
2026-07-21 UAL2241 EWR → SAT Jul 21, 18:20 UTCJul 21, 23:45 UTC5h 25m
2026-07-21 UAL1784 STT → EWR Jul 21, 02:45 UTCJul 21, 03:20 UTC35m
2026-07-20 UAL279 CLT → EWR Jul 20, 22:15 UTCJul 21, 00:55 UTC2h 39m
2026-07-20 UAL651 SAN → SFO Jul 20, 18:00 UTCJul 20, 20:25 UTC2h 25m
2026-07-20 UAL1219 DFW → EWR Jul 20, 12:35 UTCJul 20, 15:40 UTC3h 5m
2026-07-19 UAL2856 EWR → DFW Jul 19, 23:55 UTCJul 20, 02:55 UTC3h 0m
2026-07-19 UAL1574 LAS → SFO Jul 19, 18:20 UTCJul 19, 21:25 UTC3h 5m
2026-07-19 UAL454 EWR → DFW Jul 19, 13:46 UTCJul 19, 16:28 UTC2h 42m
2026-07-19 UAL454 - Jul 19, 13:35 UTCJul 19, 16:35 UTC3h 0m
2026-07-18 UAL2603 LAX → SFO Jul 18, 10:55 UTCJul 18, 13:25 UTC2h 30m
2026-07-18 UAL1379 IAD → FLL Jul 18, 01:15 UTCJul 18, 03:20 UTC2h 6m
2026-07-17 UAL1458 - Jul 17, 19:49 UTCJul 17, 23:45 UTC3h 55m
2026-07-17 UAL1194 - Jul 17, 13:10 UTCJul 17, 17:05 UTC3h 55m
2026-07-16 UAL2497 MSY → IAD Jul 16, 17:20 UTCJul 16, 19:30 UTC2h 10m
2026-07-16 UAL2253 IAD → MSY Jul 16, 12:55 UTCJul 16, 14:55 UTC2h 0m
2026-07-16 UAL2253 IAD → MSY Jul 16, 12:58 UTCJul 16, 14:53 UTC1h 55m
2026-07-16 UAL635 - Jul 16, 10:10 UTCJul 16, 11:15 UTC1h 5m
2026-07-16 UAL444 - Jul 16, 03:00 UTCJul 16, 03:55 UTC55m
2026-07-15 UAL1458 - Jul 15, 19:45 UTCJul 15, 23:30 UTC3h 45m
2026-07-15 UAL1194 - Jul 15, 13:00 UTCJul 15, 16:45 UTC3h 45m
2026-07-15 UAL498 PDX → IAD Jul 15, 06:40 UTCJul 15, 11:25 UTC4h 45m
2026-07-14 UAL780C IAD → PDX Jul 14, 22:05 UTCJul 15, 02:40 UTC4h 34m
2026-07-14 UAL3037 YYC → IAD Jul 14, 16:25 UTCJul 14, 20:00 UTC3h 35m
2026-07-14 UAL3927 SFO → YYC Jul 14, 13:10 UTCJul 14, 15:05 UTC1h 55m
2026-07-13 UAL1769 - Jul 13, 23:25 UTCJul 14, 04:15 UTC4h 50m
2026-07-13 UAL1205 - Jul 13, 15:30 UTCJul 13, 20:20 UTC4h 50m
2026-07-13 UAL1083 - Jul 13, 02:40 UTCJul 13, 04:40 UTC2h 0m
2026-07-12 UAL1086 DEN → YVR Jul 12, 22:40 UTCJul 13, 01:05 UTC2h 25m
2026-07-12 UAL757 SEA → DEN Jul 12, 18:15 UTCJul 12, 20:20 UTC2h 5m
2026-07-12 UAL2271 DEN → SEA Jul 12, 14:15 UTCJul 12, 16:35 UTC2h 20m
2026-07-12 UAL2271 DEN → SEA Jul 12, 14:19 UTCJul 12, 16:31 UTC2h 12m

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 N17433 page for operator, model, and routing details .

Mode-S A12AE6 frequently asked

What is Mode-S code A12AE6?
A12AE6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N17433.
Where is Mode-S A12AE6 registered?
Mode-S code A12AE6 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 A12AE6 broadcasting right now?
Yes. Mode-S A12AE6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A12AE6, octal 50225346, decimal 10,562,278.
What flights does A12AE6 operate?
Mode-S A12AE6 has broadcast 20 distinct callsigns, including UAL2011, UAL2219, UAL731, UAL663, UAL639.