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sensors Mode-S transponder

ADBA0A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N984AK · BOEING 737 MAX 9 · operated by ALASKA AIRLINES INC

Hex
ADBA0A
Octal
53335012
Decimal
11,385,354
Country
US
Tail
N984AK
Type
B39M
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
393
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S ADBA0A.

Country allocation

The ICAO 24-bit address ADBA0A 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
ASA50 Alaska Airlines 9 2026-05-28
ASA450 Alaska Airlines 6 2026-04-17
ASA1447 - 6 2026-06-16
ASA49 Alaska Airlines 5 2026-05-28
ASA619 Alaska Airlines 4 2026-07-22
ASA558 - 4 2026-07-04
ASA453 Alaska Airlines 4 2026-06-07
ASA424 Alaska Airlines 4 2026-06-05
ASA398 Alaska Airlines 4 2026-06-07
ASA393 Alaska Airlines 4 2026-06-11
ASA1366 - 4 2026-04-13
ASA1305 - 4 2026-07-12
ASA762 - 3 2026-07-18
ASA753 - 3 2026-06-21
ASA725 - 3 2026-07-13
ASA707 Alaska Airlines 3 2026-05-17
ASA643 - 3 2026-07-07
ASA626 - 3 2026-07-02
ASA625 Alaska Airlines 3 2026-06-05
ASA432 Alaska Airlines 3 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA546 LAX → EWR Jul 26, 19:50 UTCJul 26, 20:55 UTC1h 5m
2026-07-26 ASA673 LAS → SFO Jul 26, 15:25 UTCJul 26, 17:55 UTC2h 30m
2026-07-26 ASA1614 LAX → GEG Jul 26, 03:20 UTCJul 26, 05:10 UTC1h 50m
2026-07-25 ASA1300 SJC → SEA Jul 25, 23:40 UTCJul 26, 02:00 UTC2h 20m
2026-07-25 ASA630 LAS → SFO Jul 25, 20:05 UTCJul 25, 21:40 UTC1h 35m
2026-07-25 ASA528 SFO → LAS Jul 25, 16:40 UTCJul 25, 18:35 UTC1h 55m
2026-07-25 ASA323 - Jul 25, 13:25 UTCJul 25, 14:45 UTC1h 20m
2026-07-25 ASA736 SEA → BOS Jul 25, 04:15 UTCJul 25, 05:40 UTC1h 25m
2026-07-24 ASA356 BOS → SFO Jul 24, 20:45 UTCJul 25, 02:25 UTC5h 40m
2026-07-24 ASA239 LIH → SJC Jul 24, 14:20 UTCJul 24, 18:50 UTC4h 30m
2026-07-24 ASA1436 SEA → LAX Jul 24, 04:45 UTCJul 24, 06:20 UTC1h 35m
2026-07-24 ASA1411 PVR → SEA Jul 24, 02:45 UTCJul 24, 03:30 UTC45m
2026-07-23 ASA1411 PVR → SEA Jul 23, 23:05 UTCJul 23, 23:25 UTC20m
2026-07-23 ASA768 SEA → LAS Jul 23, 16:10 UTCJul 23, 21:30 UTC5h 20m
2026-07-23 ASA1351 SJC → SEA Jul 23, 07:10 UTCJul 23, 12:25 UTC5h 15m
2026-07-23 ASA1351 SJC → SEA Jul 23, 07:08 UTCJul 23, 12:11 UTC5h 3m
2026-07-22 ASA1352 SFO → BOS Jul 22, 23:55 UTCJul 23, 05:25 UTC5h 30m
2026-07-22 ASA502 SEA → AUS Jul 22, 19:55 UTCJul 22, 22:15 UTC2h 20m
2026-07-22 ASA1327 SFO → SEA Jul 22, 16:20 UTCJul 22, 17:45 UTC1h 25m
2026-07-22 ASA619 PHX → SEA Jul 22, 03:00 UTCJul 22, 04:50 UTC1h 50m
2026-07-21 ASA734 PHX → PAE Jul 21, 22:25 UTCJul 22, 00:10 UTC1h 45m
2026-07-21 ASA733 LAS → SEA Jul 21, 19:14 UTCJul 21, 20:47 UTC1h 33m
2026-07-21 ASA733 LAS → SEA Jul 21, 19:15 UTCJul 21, 20:55 UTC1h 40m
2026-07-21 ASA299 EWR → SEA Jul 21, 11:50 UTCJul 21, 17:45 UTC5h 55m
2026-07-21 ASA1631 SFO → EWR Jul 21, 05:50 UTCJul 21, 10:05 UTC4h 15m
2026-07-20 ASA1302 SEA → LAX Jul 20, 22:45 UTCJul 20, 23:55 UTC1h 9m
2026-07-20 ASA655 SEA → SFO Jul 20, 19:15 UTCJul 20, 21:05 UTC1h 50m
2026-07-20 ASA417 PIT → SEA Jul 20, 01:25 UTCJul 20, 03:45 UTC2h 20m
2026-07-19 ASA1557 HAF → SAN Jul 19, 16:30 UTCJul 19, 17:40 UTC1h 10m
2026-07-19 ASA1557 SFO → SAN Jul 19, 16:07 UTCJul 19, 17:37 UTC1h 30m
2026-07-19 ASA634 LAS → SFO Jul 19, 04:25 UTCJul 19, 05:30 UTC1h 5m
2026-07-19 ASA1458 EWR → SFO Jul 19, 00:20 UTCJul 19, 02:25 UTC2h 5m
2026-07-18 ASA762 - Jul 18, 21:40 UTCJul 18, 22:40 UTC1h 0m
2026-07-18 ASA762 - Jul 18, 17:20 UTCJul 18, 17:35 UTC15m
2026-07-18 ASA762 HNL → SEA Jul 18, 17:28 UTCJul 18, 22:41 UTC5h 13m
2026-07-18 ASA761 - Jul 18, 09:20 UTCJul 18, 09:35 UTC15m
2026-07-18 ASA761 - Jul 18, 04:15 UTCJul 18, 05:05 UTC50m
2026-07-17 ASA216 - Jul 17, 21:44 UTCJul 18, 02:09 UTC4h 25m
2026-07-17 ASA216 SEA → CLE Jul 17, 16:24 UTCJul 17, 20:15 UTC3h 50m
2026-07-17 ASA563 - Jul 17, 11:45 UTCJul 17, 14:50 UTC3h 5m
2026-07-17 ASA564 SEA → MCI Jul 17, 03:29 UTCJul 17, 06:29 UTC3h 0m
2026-07-17 ASA564 - Jul 17, 03:30 UTCJul 17, 06:29 UTC3h 0m
2026-07-17 ASA652 - Jul 17, 00:04 UTCJul 17, 01:59 UTC1h 55m
2026-07-16 ASA633 - Jul 16, 21:05 UTCJul 16, 22:49 UTC1h 45m
2026-07-16 ASA1426 SJC → SEA Jul 16, 15:49 UTCJul 16, 17:30 UTC1h 40m
2026-07-16 ASA1310 SEA → SJC Jul 16, 03:25 UTCJul 16, 05:20 UTC1h 55m
2026-07-16 ASA430 PDX → SEA Jul 16, 00:55 UTCJul 16, 01:20 UTC25m
2026-07-15 ASA229 - Jul 15, 22:35 UTCJul 15, 23:30 UTC55m
2026-07-15 ASA441 - Jul 15, 20:10 UTCJul 15, 21:10 UTC1h 0m
2026-07-15 ASA441 SEA → BOI Jul 15, 20:07 UTCJul 15, 21:06 UTC59m

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 N984AK page for operator, model, and routing details .

Mode-S ADBA0A frequently asked

What is Mode-S code ADBA0A?
ADBA0A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N984AK.
Where is Mode-S ADBA0A registered?
Mode-S code ADBA0A 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 ADBA0A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADBA0A, octal 53335012, decimal 11,385,354.
What flights does ADBA0A operate?
Mode-S ADBA0A has broadcast 20 distinct callsigns, including ASA50, ASA450, ASA1447, ASA49, ASA619.