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sensors Mode-S transponder

A6EE47

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N546AS · BOEING 737-800 · operated by ALASKA AIRLINES INC

Hex
A6EE47
Octal
51567107
Decimal
10,939,975
Country
US
Tail
N546AS
Type
B738
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
466
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A6EE47.

Country allocation

The ICAO 24-bit address A6EE47 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
ASA658 Alaska Airlines 9 2026-07-25
ASA548 - 6 2026-07-13
ASA1497 Alaska Airlines 6 2026-05-10
ASA773 - 5 2026-07-07
ASA60 Alaska Airlines 5 2026-06-07
ASA498 - 5 2026-06-18
ASA442 Alaska Airlines 5 2026-07-21
ASA1384 Alaska Airlines 5 2026-07-24
ASA759 - 4 2026-07-13
ASA660 - 4 2026-07-03
ASA634 Alaska Airlines 4 2026-06-03
ASA521 Alaska Airlines 4 2026-05-16
ASA322 Alaska Airlines 4 2026-06-18
ASA1325 - 4 2026-06-30
ASA1311 - 4 2026-06-23
ASA9663 Alaska Airlines 3 2026-05-26
ASA771 - 3 2026-07-06
ASA700 - 3 2026-07-16
ASA695 Alaska Airlines 3 2026-05-02
ASA686 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 44 - Jul 26, 21:20 UTCJul 26, 21:45 UTC25m
2026-07-26 ASA43 ANC → BET Jul 26, 19:10 UTCJul 26, 19:55 UTC45m
2026-07-25 ASA1637 LAS → ANC Jul 25, 23:50 UTCJul 26, 04:25 UTC4h 35m
2026-07-25 ASA658 SEA → PHX Jul 25, 20:20 UTCJul 25, 22:30 UTC2h 10m
2026-07-25 ASA215 PDX → SJC Jul 25, 14:10 UTCJul 25, 17:55 UTC3h 45m
2026-07-25 ASA1370 PVR → SFO Jul 25, 00:55 UTCJul 25, 04:30 UTC3h 35m
2026-07-24 ASA1383 PVR → SEA Jul 24, 21:30 UTCJul 24, 23:10 UTC1h 40m
2026-07-24 ASA1384 SEA → PVR Jul 24, 18:05 UTCJul 24, 20:10 UTC2h 5m
2026-07-24 ASA679 - Jul 24, 15:10 UTCJul 24, 16:20 UTC1h 10m
2026-07-24 ASA539 SAN → SEA Jul 24, 01:15 UTCJul 24, 03:05 UTC1h 50m
2026-07-23 ASA1338 LAS → SJD Jul 23, 14:10 UTCJul 23, 22:15 UTC8h 5m
2026-07-23 ASA1379 SFO → PVR Jul 23, 01:25 UTCJul 23, 02:45 UTC1h 20m
2026-07-22 ASA421 PDX → SFO Jul 22, 19:05 UTCJul 22, 22:50 UTC3h 45m
2026-07-22 ASA421 PDX → SFO Jul 22, 19:00 UTCJul 22, 22:10 UTC3h 10m
2026-07-22 ASA427 SEA → CVG Jul 22, 16:45 UTCJul 22, 17:10 UTC25m
2026-07-22 ASA1787 PHL → PDX Jul 22, 03:00 UTCJul 22, 05:25 UTC2h 25m
2026-07-21 ASA442 SEA → PHL Jul 21, 23:50 UTCJul 22, 01:10 UTC1h 20m
2026-07-21 ASA442 SEA → PHL Jul 21, 16:40 UTCJul 21, 22:00 UTC5h 20m
2026-07-21 ASA423 SEA → SAT Jul 21, 12:25 UTCJul 21, 13:25 UTC1h 0m
2026-07-21 ASA463 TPA → SEA Jul 21, 05:25 UTCJul 21, 06:30 UTC1h 5m
2026-07-21 ASA296 LAX → SEA Jul 21, 01:35 UTCJul 21, 02:35 UTC1h 0m
2026-07-20 ASA342 - Jul 20, 22:55 UTCJul 20, 23:45 UTC50m
2026-07-20 ASA342 PDX → BOI Jul 20, 22:51 UTCJul 20, 23:42 UTC51m
2026-07-20 ASA1567 ANC → PDX Jul 20, 18:25 UTCJul 20, 21:45 UTC3h 20m
2026-07-20 ASA694 SJC → PDX Jul 20, 16:15 UTCJul 20, 17:10 UTC55m
2026-07-20 ASA457 ORD → SFO Jul 20, 14:10 UTCJul 20, 14:50 UTC40m
2026-07-20 ASA669 SEA → ANC Jul 20, 06:35 UTCJul 20, 09:40 UTC3h 5m
2026-07-20 ASA583 SNA → PDX Jul 20, 00:35 UTCJul 20, 04:40 UTC4h 5m
2026-07-19 ASA346 SFO → FLL Jul 19, 18:50 UTCJul 19, 22:05 UTC3h 15m
2026-07-19 ASA748 SFO → LAS Jul 19, 14:35 UTCJul 19, 16:35 UTC2h 0m
2026-07-19 ASA63 SFO → LAX Jul 19, 03:50 UTCJul 19, 06:01 UTC2h 11m
2026-07-19 ASA63 SFO → LAX Jul 19, 03:50 UTCJul 19, 06:10 UTC2h 20m
2026-07-19 ASA430 PDX → SEA Jul 19, 00:40 UTCJul 19, 01:05 UTC25m
2026-07-18 ASA1600 SFO → LAS Jul 18, 22:05 UTCJul 18, 23:10 UTC1h 5m
2026-07-18 ASA1428 SFO → SJD Jul 18, 19:20 UTCJul 18, 20:50 UTC1h 30m
2026-07-18 ASA241 SEA → MKE Jul 18, 13:15 UTCJul 18, 17:30 UTC4h 15m
2026-07-18 ASA398 - Jul 18, 07:05 UTCJul 18, 10:55 UTC3h 50m
2026-07-18 ASA583 - Jul 18, 01:00 UTCJul 18, 04:45 UTC3h 46m
2026-07-18 ASA583 ORD → SEA Jul 18, 01:05 UTCJul 18, 04:34 UTC3h 29m
2026-07-17 ASA346 - Jul 17, 19:45 UTCJul 17, 23:14 UTC3h 30m
2026-07-17 ASA587 - Jul 17, 14:24 UTCJul 17, 18:10 UTC3h 45m
2026-07-17 ASA376 PDX → ORD Jul 17, 08:10 UTCJul 17, 11:39 UTC3h 30m
2026-07-17 ASA662 PHX → PDX Jul 17, 02:20 UTCJul 17, 04:29 UTC2h 10m
2026-07-16 ASA700 SEA → PHX Jul 16, 21:50 UTCJul 17, 00:50 UTC3h 0m
2026-07-16 ASA348 ATL → SEA Jul 16, 13:05 UTCJul 16, 18:00 UTC4h 55m
2026-07-15 ASA727 SEA → ATL Jul 15, 23:30 UTCJul 16, 04:00 UTC4h 30m
2026-07-15 ASA785 LAS → SEA Jul 15, 18:55 UTCJul 15, 20:50 UTC1h 55m
2026-07-15 ASA785 LAS → SEA Jul 15, 18:54 UTCJul 15, 20:43 UTC1h 49m
2026-07-15 ASA612 SEA → LAS Jul 15, 15:15 UTCJul 15, 17:25 UTC2h 10m
2026-07-15 ASA591 SFO → SEA Jul 15, 03:55 UTCJul 15, 05:20 UTC1h 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 N546AS page for operator, model, and routing details .

Mode-S A6EE47 frequently asked

What is Mode-S code A6EE47?
A6EE47 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N546AS.
Where is Mode-S A6EE47 registered?
Mode-S code A6EE47 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 A6EE47 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 A6EE47, octal 51567107, decimal 10,939,975.
What flights does A6EE47 operate?
Mode-S A6EE47 has broadcast 20 distinct callsigns, including ASA658, ASA548, ASA1497, ASA773, ASA60.