Apparatus

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sensors Mode-S transponder

AB10D4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N812AK · operated by ALASKA AIRLINES INC

Hex
AB10D4
Octal
52610324
Decimal
11,210,964
Country
US
Tail
N812AK
Type
B38M
No current signal · last broadcast 4h ago
Flights observed
208
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S AB10D4.

Country allocation

The ICAO 24-bit address AB10D4 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
ASA1353 Alaska Airlines 17 2026-05-28
ASA1354 Alaska Airlines 14 2026-05-28
ASA1351 Alaska Airlines 10 2026-04-26
ASA560 Alaska Airlines 8 2026-04-20
ASA253 Alaska Airlines 6 2026-04-21
ASA1352 Alaska Airlines 6 2026-04-26
ASA717 Alaska Airlines 4 2026-05-16
ASA59 Alaska Airlines 4 2026-05-23
ASA373 Alaska Airlines 4 2026-05-09
ASA245 Alaska Airlines 4 2026-05-23
ASA204 Alaska Airlines 4 2026-05-22
ASA520 Alaska Airlines 3 2026-05-21
ASA501 Alaska Airlines 3 2026-05-17
ASA327 Alaska Airlines 3 2026-05-10
ASA3 Alaska Airlines 3 2026-05-13
ASA1363 Alaska Airlines 3 2026-05-24
ASA1338 Alaska Airlines 3 2026-05-08
ASA10 Alaska Airlines 3 2026-05-13
ASA9 Alaska Airlines 2 2026-05-12
ASA8 Alaska Airlines 2 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ASA1378 SFO → MZT May 29, 17:40 UTCMay 29, 20:00 UTC2h 20m
2026-05-29 ASA1404 SEA → BZE May 29, 14:15 UTCMay 29, 16:15 UTC2h 0m
2026-05-29 ASA770 PDX → STS May 29, 00:10 UTCMay 29, 03:20 UTC3h 10m
2026-05-28 ASA509 SEA → SJC May 28, 19:50 UTCMay 28, 22:55 UTC3h 5m
2026-05-28 ASA509 SEA → SJC May 28, 19:54 UTCMay 28, 22:51 UTC2h 57m
2026-05-28 ASA1317 LAX → SEA May 28, 16:20 UTCMay 28, 18:20 UTC2h 0m
2026-05-28 ASA1354 GUA → LAX May 28, 08:30 UTCMay 28, 12:35 UTC4h 5m
2026-05-28 ASA1354 GUA → LAX May 28, 07:40 UTCMay 28, 07:50 UTC10m
2026-05-28 ASA1353 LAX → GUA May 28, 04:50 UTCMay 28, 05:05 UTC15m
2026-05-28 ASA1353 LAX → GUA May 28, 01:00 UTCMay 28, 04:15 UTC3h 15m
2026-05-28 ASA1353 LAX → GUA May 28, 00:56 UTCMay 28, 05:01 UTC4h 5m
2026-05-27 ASA1331 PHL → SEA May 27, 11:20 UTCMay 27, 23:15 UTC11h 55m
2026-05-27 ASA616 TPA → SFO May 27, 07:05 UTCMay 27, 11:15 UTC4h 10m
2026-05-26 ASA1419 GDL → LAX May 26, 17:50 UTCMay 27, 01:14 UTC7h 25m
2026-05-26 ASA797 PHX → PDX May 26, 13:15 UTCMay 26, 15:24 UTC2h 10m
2026-05-25 ASA555 MSP → SEA May 25, 20:40 UTCMay 25, 23:49 UTC3h 10m
2026-05-25 ASA555 MSP → SEA May 25, 15:55 UTCMay 25, 18:50 UTC2h 55m
2026-05-24 ASA234 FAI → SEA May 24, 22:57 UTCMay 25, 04:11 UTC5h 14m
2026-05-24 ASA1363 LAX → PVR May 24, 15:45 UTCMay 24, 20:45 UTC5h 0m
2026-05-23 ASA245 SEA → OGG May 23, 21:05 UTCMay 23, 21:25 UTC20m
2026-05-23 ASA245 SEA → OGG May 23, 20:52 UTCMay 24, 02:05 UTC5h 13m
2026-05-23 ASA245 SEA → OGG May 23, 20:52 UTCMay 24, 02:03 UTC5h 11m
2026-05-23 ASA54 ANC → LAS May 23, 14:05 UTCMay 23, 14:40 UTC35m
2026-05-23 ASA59 SEA → ANC May 23, 06:05 UTCMay 23, 06:45 UTC40m
2026-05-23 ASA59 SEA → ANC May 23, 01:50 UTCMay 23, 02:05 UTC15m
2026-05-22 ASA204 LAX → SFO May 22, 18:55 UTCMay 23, 00:10 UTC5h 15m
2026-05-22 ASA204 LAX → SFO May 22, 19:09 UTCMay 23, 00:04 UTC4h 55m
2026-05-22 ASA82 ANC → SEA May 22, 14:10 UTCMay 22, 17:10 UTC3h 0m
2026-05-22 ASA1499 SEA → DTW May 22, 06:00 UTCMay 22, 09:25 UTC3h 25m
2026-05-21 ASA415 LAX → SEA May 21, 23:55 UTCMay 22, 04:00 UTC4h 5m
2026-05-21 ASA317 BOS → SEA May 21, 18:10 UTCMay 21, 21:55 UTC3h 45m
2026-05-21 ASA495 SAT → SEA May 21, 12:10 UTCMay 21, 16:10 UTC4h 0m
2026-05-21 ASA520 SEA → FLL May 21, 07:00 UTCMay 21, 10:35 UTC3h 35m
2026-05-20 ASA234 FAI → SEA May 20, 23:15 UTCMay 21, 04:35 UTC5h 20m
2026-05-20 ASA1363 LAX → PVR May 20, 15:55 UTCMay 20, 21:05 UTC5h 10m
2026-05-20 ASA1363 LAX → PVR May 20, 15:52 UTCMay 20, 21:25 UTC5h 33m
2026-05-19 ASA245 SEA → OGG May 19, 21:05 UTCMay 20, 01:55 UTC4h 50m
2026-05-19 ASA54 ANC → LAS May 19, 14:15 UTCMay 19, 19:05 UTC4h 50m
2026-05-19 ASA59 SEA → ANC May 19, 05:40 UTCMay 19, 06:25 UTC45m
2026-05-19 ASA59 SEA → ANC May 19, 01:50 UTCMay 19, 02:00 UTC10m
2026-05-18 ASA204 LAX → SFO May 18, 23:50 UTCMay 19, 00:10 UTC20m
2026-05-18 ASA204 LAX → SFO May 18, 18:35 UTCMay 18, 19:25 UTC50m
2026-05-18 ASA491 RDU → SEA May 18, 14:10 UTCMay 18, 16:25 UTC2h 15m
2026-05-18 ASA1415 LIR → LAX May 18, 02:35 UTCMay 18, 04:25 UTC1h 50m
2026-05-17 ASA501 PHX → SFO May 17, 20:01 UTCMay 17, 23:20 UTC3h 20m
2026-05-17 ASA501 PHX → SFO May 17, 15:25 UTCMay 17, 18:20 UTC2h 55m
2026-05-17 ASA1391 SJD → SEA May 17, 01:15 UTCMay 17, 01:40 UTC25m
2026-05-16 ASA564 SEA → MCI May 16, 22:55 UTCMay 16, 23:50 UTC55m
2026-05-16 ASA467 SFO → ZIH May 16, 20:35 UTCMay 16, 21:35 UTC1h 0m
2026-05-16 ASA717 SAN → SFO May 16, 17:40 UTCMay 16, 17:50 UTC10m

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 N812AK page for operator, model, and routing details .

Mode-S AB10D4 frequently asked

What is Mode-S code AB10D4?
AB10D4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N812AK.
Where is Mode-S AB10D4 registered?
Mode-S code AB10D4 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 AB10D4 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB10D4, octal 52610324, decimal 11,210,964.
What flights does AB10D4 operate?
Mode-S AB10D4 has broadcast 20 distinct callsigns, including ASA1353, ASA1354, ASA1351, ASA560, ASA253.