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sensors Mode-S transponder

ADB653

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N983AK · BOEING 737 MAX 9 · operated by ALASKA AIRLINES INC

Hex
ADB653
Octal
53333123
Decimal
11,384,403
Country
US
Tail
N983AK
Type
B39M
Broadcasting now · callsign ASA1363 · 36,000 ft
Flights observed
222
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

ADB653 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ADB653 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
ASA705 Alaska Airlines 5 2026-05-09
ASA295 Alaska Airlines 4 2026-06-11
ASA706 Alaska Airlines 3 2026-05-09
ASA684 Alaska Airlines 3 2026-04-29
ASA560 Alaska Airlines 3 2026-06-07
ASA418 Alaska Airlines 3 2026-04-22
ASA331 Alaska Airlines 3 2026-05-21
ASA329 Alaska Airlines 3 2026-05-30
ASA279 Alaska Airlines 3 2026-05-22
ASA1391 Alaska Airlines 3 2026-05-14
ASA12 Alaska Airlines 3 2026-05-25
ASA784 Alaska Airlines 2 2026-05-19
ASA777 Alaska Airlines 2 2026-04-27
ASA762 Alaska Airlines 2 2026-05-26
ASA731 Alaska Airlines 2 2026-05-17
ASA719 Alaska Airlines 2 2026-05-28
ASA700 Alaska Airlines 2 2026-06-04
ASA683 Alaska Airlines 2 2026-04-26
ASA682 Alaska Airlines 2 2026-06-03
ASA662 Alaska Airlines 2 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-13 ASA1363 - Jun 13, 07:25 UTCJun 13, 08:45 UTC1h 20m
2026-06-13 ASA611 LAX → SEA Jun 13, 02:05 UTCJun 13, 04:40 UTC2h 35m
2026-06-12 ASA515 - Jun 12, 22:10 UTCJun 13, 00:35 UTC2h 25m
2026-06-12 ASA514 PDX → BOS Jun 12, 18:10 UTCJun 12, 20:45 UTC2h 35m
2026-06-12 ASA1349 ZIH → SFO Jun 12, 14:10 UTCJun 12, 16:40 UTC2h 30m
2026-06-11 ASA301 LIH → SJC Jun 11, 21:40 UTCJun 12, 03:25 UTC5h 46m
2026-06-11 ASA295 LAX → SEA Jun 11, 15:20 UTCJun 11, 20:25 UTC5h 5m
2026-06-10 ASA517 FLL → SEA Jun 10, 22:50 UTCJun 11, 05:00 UTC6h 10m
2026-06-10 ASA516 SEA → FLL Jun 10, 15:40 UTCJun 10, 20:50 UTC5h 10m
2026-06-10 ASA206 PDX → SFO Jun 10, 12:05 UTCJun 10, 13:00 UTC55m
2026-06-10 ASA353 ORD → SEA Jun 10, 01:05 UTCJun 10, 01:50 UTC45m
2026-06-10 ASA353 ORD → SEA Jun 10, 01:01 UTCJun 10, 06:17 UTC5h 16m
2026-06-09 ASA240 HNL → PAE Jun 9, 20:55 UTCJun 9, 22:55 UTC2h 0m
2026-06-09 ASA240 HNL → PAE Jun 9, 19:44 UTCJun 9, 22:46 UTC3h 2m
2026-06-09 ASA671 SEA → SFO Jun 9, 15:00 UTCJun 9, 19:55 UTC4h 55m
2026-06-09 ASA595 AUS → SEA Jun 9, 01:30 UTCJun 9, 03:40 UTC2h 10m
2026-06-08 ASA713 SFO → JAC Jun 8, 21:45 UTCJun 8, 23:35 UTC1h 50m
2026-06-08 ASA19 JFK → PDX Jun 8, 14:20 UTCJun 8, 19:40 UTC5h 20m
2026-06-08 ASA22 SEA → JFK Jun 8, 06:05 UTCJun 8, 11:05 UTC5h 0m
2026-06-08 ASA205 SAN → SEA Jun 8, 03:15 UTCJun 8, 04:25 UTC1h 10m
2026-06-07 ASA205 SAN → SEA Jun 7, 22:50 UTCJun 7, 23:00 UTC10m
2026-06-07 ASA560 SEA → DFW Jun 7, 20:55 UTCJun 7, 21:05 UTC10m
2026-06-07 ASA560 SEA → DFW Jun 7, 16:15 UTCJun 7, 16:45 UTC30m
2026-06-07 ASA560 SEA → DFW Jun 7, 15:57 UTCJun 7, 21:05 UTC5h 8m
2026-06-06 ASA1351 SJC → SEA Jun 6, 23:50 UTCJun 7, 12:50 UTC13h 0m
2026-06-06 ASA480 SEA → MSP Jun 6, 19:44 UTCJun 6, 21:50 UTC2h 5m
2026-06-06 ASA476 SEA → LAX Jun 6, 16:14 UTCJun 6, 18:04 UTC1h 50m
2026-06-05 ASA1431 BOS → SEA Jun 5, 23:25 UTCJun 6, 00:50 UTC1h 25m
2026-06-05 ASA1431 BOS → SEA Jun 5, 22:12 UTCJun 6, 00:40 UTC2h 28m
2026-06-05 ASA1358 SFO → BOS Jun 5, 18:10 UTCJun 5, 18:45 UTC35m
2026-06-05 ASA1358 SFO → BOS Jun 5, 18:09 UTCJun 5, 20:38 UTC2h 29m
2026-06-05 ASA581 SEA → PSP Jun 5, 14:30 UTCJun 5, 16:25 UTC1h 55m
2026-06-05 ASA662 PHX → PDX Jun 5, 01:05 UTCJun 5, 03:45 UTC2h 40m
2026-06-05 ASA662 PHX → PDX Jun 5, 01:04 UTCJun 5, 03:33 UTC2h 29m
2026-06-04 ASA700 SEA → PHX Jun 4, 21:20 UTCJun 4, 23:32 UTC2h 12m
2026-06-04 ASA700 SEA → PHX Jun 4, 21:25 UTCJun 4, 23:35 UTC2h 10m
2026-06-04 ASA373 SJC → SJD Jun 4, 13:45 UTCJun 4, 19:00 UTC5h 15m
2026-06-03 ASA293 EWR → SFO Jun 3, 23:00 UTCJun 4, 03:40 UTC4h 40m
2026-06-03 ASA682 SEA → DEN Jun 3, 18:35 UTCJun 3, 21:00 UTC2h 25m
2026-06-03 ASA682 SEA → DEN Jun 3, 15:00 UTCJun 3, 17:15 UTC2h 15m
2026-06-03 ASA292 SFO → EWR Jun 3, 09:30 UTCJun 3, 12:50 UTC3h 20m
2026-06-03 ASA402 CHS → SEA Jun 3, 03:55 UTCJun 3, 07:00 UTC3h 5m
2026-06-02 ASA622 SEA → PHX Jun 2, 23:15 UTCJun 3, 01:50 UTC2h 35m
2026-06-02 ASA25 BOS → SEA Jun 2, 15:55 UTCJun 2, 21:05 UTC5h 10m
2026-06-02 ASA27 JFK → SAN Jun 2, 05:00 UTCJun 2, 09:45 UTC4h 45m
2026-06-01 ASA397 MCO → SAN Jun 1, 22:30 UTCJun 2, 03:10 UTC4h 40m
2026-06-01 ASA295 LAX → SEA Jun 1, 20:35 UTCJun 1, 20:40 UTC5m
2026-06-01 ASA295 LAX → SEA Jun 1, 15:40 UTCJun 1, 20:40 UTC5h 0m
2026-06-01 ASA295 LAX → SEA Jun 1, 15:53 UTCJun 1, 20:20 UTC4h 27m
2026-06-01 ASA569 MSY → SEA Jun 1, 00:10 UTCJun 1, 04:35 UTC4h 25m

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 N983AK page for operator, model, and routing details .

Mode-S ADB653 frequently asked

What is Mode-S code ADB653?
ADB653 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N983AK.
Where is Mode-S ADB653 registered?
Mode-S code ADB653 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 ADB653 broadcasting right now?
Yes. Mode-S ADB653 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADB653, octal 53333123, decimal 11,384,403.
What flights does ADB653 operate?
Mode-S ADB653 has broadcast 20 distinct callsigns, including ASA705, ASA295, ASA706, ASA684, ASA560.