Apparatus

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sensors Mode-S transponder

ADF068

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N998AN · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
ADF068
Octal
53370150
Decimal
11,399,272
Country
US
Tail
N998AN
Type
A321
No current signal · last broadcast 1h ago
Flights observed
493
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S ADF068.

Country allocation

The ICAO 24-bit address ADF068 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
AAL903 American Airlines 10 2026-06-29
AAL870 American Airlines 9 2026-07-05
AAL2584 American Airlines 7 2026-05-26
AAL2387 American Airlines 7 2026-05-05
AAL420 American Airlines 6 2026-06-07
AAL2170 - 6 2026-07-02
AAL3001 American Airlines 5 2026-06-02
AAL2284 - 5 2026-07-10
AAL332 - 4 2026-07-02
AAL2977 - 4 2026-06-29
AAL2936 - 4 2026-06-23
AAL2668 - 4 2026-04-13
AAL2319 American Airlines 4 2026-05-13
AAL1987 American Airlines 4 2026-07-01
AAL1547 American Airlines 4 2026-05-01
AAL1389 American Airlines 4 2026-06-01
AAL1214 American Airlines 4 2026-04-23
AAL1139 American Airlines 4 2026-05-13
AAL835 American Airlines 3 2026-06-19
AAL633 - 3 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL1483 - Jul 14, 01:10 UTCJul 14, 06:00 UTC4h 50m
2026-07-13 AAL1511 PHX → PHL Jul 13, 13:05 UTCJul 13, 17:25 UTC4h 20m
2026-07-13 AAL3239 DFW → PHX Jul 13, 04:50 UTCJul 13, 06:50 UTC2h 0m
2026-07-12 AAL436 - Jul 12, 23:15 UTCJul 13, 02:25 UTC3h 10m
2026-07-12 AAL436 - Jul 12, 19:05 UTCJul 12, 21:55 UTC2h 50m
2026-07-12 AAL2811 - Jul 12, 13:15 UTCJul 12, 16:01 UTC2h 45m
2026-07-12 AAL669 - Jul 12, 03:15 UTCJul 12, 08:01 UTC4h 46m
2026-07-12 AAL669 MIA → LAX Jul 12, 03:15 UTCJul 12, 08:00 UTC4h 45m
2026-07-11 AAL3124 - Jul 11, 20:10 UTCJul 12, 00:45 UTC4h 35m
2026-07-11 AAL2012 - Jul 11, 14:00 UTCJul 11, 17:40 UTC3h 40m
2026-07-11 AAL840R - Jul 11, 10:15 UTCJul 11, 12:10 UTC1h 55m
2026-07-11 AAL2840 PHL → PHL Jul 11, 04:05 UTCJul 11, 04:10 UTC5m
2026-07-11 AAL2443 - Jul 11, 00:45 UTCJul 11, 02:30 UTC1h 45m
2026-07-10 AAL2284 PDX → ORD Jul 10, 18:35 UTCJul 10, 22:20 UTC3h 45m
2026-07-10 AAL2284 PDX → ORD Jul 10, 18:35 UTCJul 10, 22:04 UTC3h 29m
2026-07-10 AAL2284 - Jul 10, 13:35 UTCJul 10, 17:10 UTC3h 35m
2026-07-10 AAL2840 - Jul 10, 04:20 UTCJul 10, 06:10 UTC1h 50m
2026-07-10 AAL2840 PHL → ORD Jul 10, 04:19 UTCJul 10, 06:05 UTC1h 46m
2026-07-09 AAL2973 DFW → PHL Jul 9, 23:30 UTCJul 10, 02:20 UTC2h 50m
2026-07-09 AAL2222 - Jul 9, 20:05 UTCJul 9, 22:05 UTC2h 0m
2026-07-08 AAL1433 - Jul 8, 02:00 UTCJul 8, 05:30 UTC3h 30m
2026-07-07 AAL1502 - Jul 7, 20:05 UTCJul 8, 00:30 UTC4h 25m
2026-07-07 AAL1150 - Jul 7, 17:00 UTCJul 7, 18:20 UTC1h 20m
2026-07-07 AAL1150 - Jul 7, 14:15 UTCJul 7, 15:20 UTC1h 5m
2026-07-07 AAL2842 - Jul 7, 10:25 UTCJul 7, 11:45 UTC1h 20m
2026-07-07 AAL2842 ORD → CLT Jul 7, 10:24 UTCJul 7, 11:44 UTC1h 20m
2026-07-07 AAL2323 - Jul 7, 06:20 UTCJul 7, 08:50 UTC2h 30m
2026-07-07 AAL1983 PHX → MIA Jul 7, 00:35 UTCJul 7, 04:35 UTC4h 0m
2026-07-06 AAL2655 - Jul 6, 22:30 UTCJul 6, 23:25 UTC55m
2026-07-06 AAL2655 - Jul 6, 20:00 UTCJul 6, 20:55 UTC55m
2026-07-06 AAL3079 - Jul 6, 16:05 UTCJul 6, 19:00 UTC2h 55m
2026-07-06 AAL3079 ORD → PHX Jul 6, 16:01 UTCJul 6, 18:55 UTC2h 54m
2026-07-06 AAL3074 ORD → RSW Jul 6, 12:30 UTCJul 6, 14:25 UTC1h 55m
2026-07-06 AAL3074 ORD → RSW Jul 6, 11:50 UTCJul 6, 12:10 UTC20m
2026-07-06 AAL2500 DEN → PHL Jul 6, 07:50 UTCJul 6, 11:00 UTC3h 10m
2026-07-06 AAL3249 DSM → PHX Jul 6, 02:55 UTCJul 6, 06:45 UTC3h 50m
2026-07-05 AAL870 PHL → AUA Jul 5, 21:15 UTCJul 5, 22:05 UTC50m
2026-07-05 AAL870 PHL → AUA Jul 5, 18:00 UTCJul 5, 18:15 UTC15m
2026-07-05 AAL870 PHL → AUA Jul 5, 16:20 UTCJul 5, 16:35 UTC15m
2026-07-05 AAL870 PHL → AUA Jul 5, 12:30 UTCJul 5, 13:15 UTC45m
2026-07-04 AAL3319 - Jul 4, 19:20 UTCJul 5, 00:30 UTC5h 10m
2026-07-04 AAL3319 LAX → PHL Jul 4, 19:20 UTCJul 5, 00:32 UTC5h 12m
2026-07-04 AAL500 - Jul 4, 15:20 UTCJul 4, 18:00 UTC2h 40m
2026-07-04 AAL500 DFW → LAX Jul 4, 15:20 UTCJul 4, 18:04 UTC2h 44m
2026-07-04 AAL3002 - Jul 4, 12:15 UTCJul 4, 13:00 UTC45m
2026-07-04 AAL2209 - Jul 4, 03:00 UTCJul 4, 03:40 UTC40m
2026-07-04 AAL2209 DFW → IAH Jul 4, 02:58 UTCJul 4, 03:41 UTC43m
2026-07-03 AAL2594 SLC → DFW Jul 3, 22:50 UTCJul 4, 01:00 UTC2h 10m
2026-07-03 AAL2594 SLC → DFW Jul 3, 22:50 UTCJul 4, 00:55 UTC2h 5m
2026-07-03 AAL2594 - Jul 3, 19:25 UTCJul 3, 21:35 UTC2h 10m

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 N998AN page for operator, model, and routing details .

Mode-S ADF068 frequently asked

What is Mode-S code ADF068?
ADF068 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N998AN.
Where is Mode-S ADF068 registered?
Mode-S code ADF068 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 ADF068 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 ADF068, octal 53370150, decimal 11,399,272.
What flights does ADF068 operate?
Mode-S ADF068 has broadcast 20 distinct callsigns, including AAL903, AAL870, AAL2584, AAL2387, AAL420.