Apparatus

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sensors Mode-S transponder

ACE96A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N931AK · BOEING 737 MAX 9 · operated by BANK OF UTAH TRUSTEE

Hex
ACE96A
Octal
53164552
Decimal
11,331,946
Country
US
Tail
N931AK
Type
B39M
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
424
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S ACE96A.

Country allocation

The ICAO 24-bit address ACE96A 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
ASA306 Alaska Airlines 10 2026-06-09
ASA94 Alaska Airlines 6 2026-07-06
ASA412 Alaska Airlines 6 2026-04-18
ASA81 Alaska Airlines 5 2026-05-20
ASA763 Alaska Airlines 5 2026-07-25
ASA384 - 5 2026-06-19
ASA290 Alaska Airlines 5 2026-05-12
ASA1416 Alaska Airlines 5 2026-07-24
ASA1412 - 5 2026-07-06
ASA734 Alaska Airlines 4 2026-06-11
ASA703 Alaska Airlines 4 2026-06-06
ASA647 - 4 2026-07-14
ASA513 Alaska Airlines 4 2026-05-21
ASA404 - 4 2026-07-20
ASA396 Alaska Airlines 4 2026-07-23
ASA353 Alaska Airlines 4 2026-05-16
ASA206 Alaska Airlines 4 2026-05-16
ASA203 - 4 2026-07-15
ASA1490 - 4 2026-07-09
ASA719 Alaska Airlines 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA507 SNA → SEA Jul 26, 20:10 UTCJul 26, 21:45 UTC1h 35m
2026-07-26 ASA507 SNA → SEA Jul 26, 15:25 UTCJul 26, 18:40 UTC3h 15m
2026-07-26 ASA591 CUN → SFO Jul 26, 04:20 UTCJul 26, 05:50 UTC1h 30m
2026-07-26 ASA504 OAK → SEA Jul 26, 01:30 UTCJul 26, 03:00 UTC1h 30m
2026-07-25 ASA1315 LAX → PDX Jul 25, 22:05 UTCJul 25, 23:45 UTC1h 40m
2026-07-25 ASA1331 PHL → SEA Jul 25, 15:22 UTCJul 25, 20:11 UTC4h 49m
2026-07-25 ASA616 TPA → SFO Jul 25, 07:25 UTCJul 25, 16:10 UTC8h 45m
2026-07-25 ASA763 LAX → SFO Jul 25, 02:20 UTCJul 25, 03:10 UTC50m
2026-07-24 ASA763 LAX → SFO Jul 24, 22:25 UTCJul 24, 22:40 UTC15m
2026-07-24 ASA1416 SJC → GDL Jul 24, 20:15 UTCJul 24, 20:35 UTC20m
2026-07-24 ASA1416 SJC → GDL Jul 24, 15:20 UTCJul 24, 16:00 UTC40m
2026-07-24 ASA1624 SAN → SJC Jul 24, 06:20 UTCJul 24, 07:20 UTC1h 0m
2026-07-24 ASA397 MCO → SAN Jul 24, 00:35 UTCJul 24, 04:45 UTC4h 10m
2026-07-23 ASA396 PDX → SJC Jul 23, 18:15 UTCJul 23, 22:40 UTC4h 25m
2026-07-23 ASA1680 SMF → SAN Jul 23, 15:10 UTCJul 23, 16:25 UTC1h 15m
2026-07-23 ASA638 SEA → TUS Jul 23, 02:35 UTCJul 23, 04:10 UTC1h 35m
2026-07-21 ASA494 SEA → SAT Jul 21, 22:15 UTCJul 22, 01:45 UTC3h 30m
2026-07-21 ASA494 SEA → SAT Jul 21, 17:25 UTCJul 21, 21:00 UTC3h 35m
2026-07-21 ASA473 STL → SEA Jul 21, 11:10 UTCJul 21, 15:05 UTC3h 55m
2026-07-21 ASA615 LAS → PDX Jul 21, 01:30 UTCJul 21, 04:45 UTC3h 15m
2026-07-21 ASA615 LAS → PDX Jul 21, 01:27 UTCJul 21, 04:38 UTC3h 11m
2026-07-20 ASA582 - Jul 20, 21:35 UTCJul 20, 23:40 UTC2h 5m
2026-07-20 ASA582 PSP → SEA Jul 20, 21:27 UTCJul 20, 23:36 UTC2h 9m
2026-07-20 ASA692 - Jul 20, 17:50 UTCJul 20, 20:10 UTC2h 20m
2026-07-20 ASA68 - Jul 20, 14:35 UTCJul 20, 16:00 UTC1h 25m
2026-07-20 ASA404 - Jul 20, 05:50 UTCJul 20, 06:50 UTC1h 0m
2026-07-20 ASA404 - Jul 20, 02:15 UTCJul 20, 02:30 UTC15m
2026-07-19 ASA204 LAX → SFO Jul 19, 19:26 UTCJul 20, 00:39 UTC5h 13m
2026-07-19 ASA204 LAX → SFO Jul 19, 19:20 UTCJul 20, 00:45 UTC5h 25m
2026-07-19 ASA459 BOS → SEA Jul 19, 11:20 UTCJul 19, 16:55 UTC5h 35m
2026-07-19 ASA255 - Jul 19, 04:30 UTCJul 19, 09:35 UTC5h 5m
2026-07-18 ASA389 BOS → SAN Jul 18, 21:00 UTCJul 19, 02:40 UTC5h 40m
2026-07-18 ASA358 PDX → BOS Jul 18, 14:15 UTCJul 18, 19:25 UTC5h 10m
2026-07-18 ASA207 LAX → PDX Jul 18, 04:50 UTCJul 18, 06:35 UTC1h 45m
2026-07-18 ASA763 - Jul 18, 02:35 UTCJul 18, 03:10 UTC36m
2026-07-17 ASA763 - Jul 17, 22:15 UTCJul 17, 22:29 UTC15m
2026-07-17 ASA1416 - Jul 17, 20:15 UTCJul 17, 20:35 UTC20m
2026-07-17 ASA1416 - Jul 17, 15:29 UTCJul 17, 16:10 UTC40m
2026-07-17 ASA1416 SJC → HNL Jul 17, 15:27 UTCJul 17, 20:26 UTC4h 59m
2026-07-17 ASA1624 - Jul 17, 06:25 UTCJul 17, 07:20 UTC55m
2026-07-17 ASA397 MCO → SAN Jul 17, 00:14 UTCJul 17, 04:59 UTC4h 45m
2026-07-16 ASA396 - Jul 16, 17:30 UTCJul 16, 22:10 UTC4h 40m
2026-07-16 ASA396 SAN → MCO Jul 16, 17:28 UTCJul 16, 21:58 UTC4h 30m
2026-07-15 ASA474 - Jul 15, 23:45 UTCJul 16, 04:20 UTC4h 35m
2026-07-15 ASA434 - Jul 15, 17:00 UTCJul 15, 21:50 UTC4h 50m
2026-07-15 ASA1623 SJC → SAN Jul 15, 14:15 UTCJul 15, 15:20 UTC1h 5m
2026-07-15 ASA1624 - Jul 15, 05:40 UTCJul 15, 06:40 UTC1h 0m
2026-07-15 ASA203 - Jul 15, 02:35 UTCJul 15, 03:25 UTC50m
2026-07-14 ASA245 - Jul 14, 15:25 UTCJul 14, 16:20 UTC55m
2026-07-14 ASA647 STL → SEA Jul 14, 01:15 UTCJul 14, 04:50 UTC3h 35m

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 N931AK page for operator, model, and routing details .

Mode-S ACE96A frequently asked

What is Mode-S code ACE96A?
ACE96A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N931AK.
Where is Mode-S ACE96A registered?
Mode-S code ACE96A 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 ACE96A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACE96A, octal 53164552, decimal 11,331,946.
What flights does ACE96A operate?
Mode-S ACE96A has broadcast 20 distinct callsigns, including ASA306, ASA94, ASA412, ASA81, ASA763.