Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD2EA1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N949AK · BOEING 737 MAX 9 · operated by BANK OF UTAH TRUSTEE

Hex
AD2EA1
Octal
53227241
Decimal
11,349,665
Country
US
Tail
N949AK
Type
B39M
No current signal · last broadcast 8h ago
Flights observed
359
Distinct callsigns
20
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S AD2EA1.

Country allocation

The ICAO 24-bit address AD2EA1 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
ASA62 Alaska Airlines 5 2026-07-07
ASA560 Alaska Airlines 5 2026-06-03
ASA205 Alaska Airlines 5 2026-06-10
ASA1495 Alaska Airlines 5 2026-06-09
ASA94 Alaska Airlines 4 2026-05-07
ASA66 Alaska Airlines 4 2026-05-24
ASA625 - 4 2026-06-23
ASA618 Alaska Airlines 4 2026-06-08
ASA49 - 4 2026-07-07
ASA354 Alaska Airlines 4 2026-05-08
ASA304 Alaska Airlines 4 2026-06-23
ASA287 Alaska Airlines 4 2026-06-26
ASA252 - 4 2026-07-13
ASA19 Alaska Airlines 4 2026-05-06
ASA9230 Alaska Airlines 3 2026-06-24
ASA540 Alaska Airlines 3 2026-04-16
ASA521 - 3 2026-06-14
ASA517 Alaska Airlines 3 2026-05-20
ASA488 Alaska Airlines 3 2026-06-10
ASA422 - 3 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASA678 PDX → SJC Jul 14, 04:50 UTCJul 14, 06:18 UTC1h 28m
2026-07-14 ASA678 PDX → SJC Jul 14, 04:45 UTCJul 14, 06:20 UTC1h 35m
2026-07-13 ASA253 KOA → PDX Jul 13, 22:18 UTCJul 14, 03:22 UTC5h 4m
2026-07-13 ASA253 - Jul 13, 22:05 UTCJul 13, 22:25 UTC20m
2026-07-13 ASA252 - Jul 13, 20:00 UTCJul 13, 20:15 UTC15m
2026-07-13 ASA252 - Jul 13, 15:05 UTCJul 13, 15:55 UTC50m
2026-07-13 ASA498 SEA → PDX Jul 13, 05:31 UTCJul 13, 06:01 UTC30m
2026-07-12 ASA226 ANC → SEA Jul 12, 23:00 UTCJul 13, 02:20 UTC3h 20m
2026-07-12 ASA433 SEA → ANC Jul 12, 18:27 UTCJul 12, 21:14 UTC2h 47m
2026-07-12 ASA433 SEA → ANC Jul 12, 18:15 UTCJul 12, 21:25 UTC3h 10m
2026-07-12 ASA444 BUR → SEA Jul 12, 14:25 UTCJul 12, 16:20 UTC1h 55m
2026-07-12 ASA1585 SEA → BUR Jul 12, 01:25 UTCJul 12, 03:40 UTC2h 15m
2026-07-11 ASA405 OKC → SEA Jul 11, 20:10 UTCJul 11, 23:35 UTC3h 25m
2026-07-11 ASA405 SEA → OKC Jul 11, 15:50 UTCJul 11, 18:45 UTC2h 55m
2026-07-11 ASA206 - Jul 11, 13:05 UTCJul 11, 14:00 UTC55m
2026-07-11 ASA353 - Jul 11, 02:15 UTCJul 11, 03:05 UTC50m
2026-07-10 ASA1383 BUR → PDX Jul 10, 21:55 UTCJul 10, 23:40 UTC1h 45m
2026-07-10 ASA1384 PDX → BUR Jul 10, 18:25 UTCJul 10, 20:20 UTC1h 55m
2026-07-10 ASA1626 DEN → PDX Jul 10, 14:15 UTCJul 10, 16:25 UTC2h 10m
2026-07-10 ASA752 ANC → DEN Jul 10, 07:30 UTCJul 10, 12:25 UTC4h 55m
2026-07-10 ASA767 SEA → ANC Jul 10, 01:30 UTCJul 10, 04:30 UTC3h 0m
2026-07-09 ASA363 ANC → SEA Jul 9, 21:00 UTCJul 9, 23:55 UTC2h 55m
2026-07-09 ASA79 SEA → ANC Jul 9, 16:30 UTCJul 9, 19:40 UTC3h 10m
2026-07-09 ASA79 SEA → ANC Jul 9, 16:38 UTCJul 9, 19:36 UTC2h 58m
2026-07-07 ASA62 KTN → SEA Jul 7, 21:30 UTCJul 7, 23:05 UTC1h 35m
2026-07-07 ASA62 KTN → SEA Jul 7, 21:21 UTCJul 7, 22:48 UTC1h 27m
2026-07-07 ASA62 KTN → SEA Jul 7, 19:40 UTCJul 7, 20:05 UTC25m
2026-07-07 ASA62 KTN → SEA Jul 7, 18:00 UTCJul 7, 18:15 UTC15m
2026-07-07 ASA62 KTN → SEA Jul 7, 15:25 UTCJul 7, 16:45 UTC1h 20m
2026-07-07 ASA50 - Jul 7, 12:10 UTCJul 7, 13:10 UTC1h 0m
2026-07-07 ASA50 - Jul 7, 07:25 UTCJul 7, 07:35 UTC10m
2026-07-07 ASA49 - Jul 7, 05:35 UTCJul 7, 05:50 UTC15m
2026-07-07 ASA49 - Jul 7, 00:25 UTCJul 7, 01:10 UTC45m
2026-07-07 ASA49 ANC → HNL Jul 7, 00:22 UTCJul 7, 05:45 UTC5h 23m
2026-07-06 ASA83 - Jul 6, 19:14 UTCJul 6, 22:05 UTC2h 51m
2026-07-06 ASA83 SEA → ANC Jul 6, 19:10 UTCJul 6, 22:15 UTC3h 5m
2026-07-06 ASA1426 LAX → ZIH Jul 6, 15:50 UTCJul 6, 17:30 UTC1h 40m
2026-07-06 ASA539 SEA → SJC Jul 6, 01:20 UTCJul 6, 03:05 UTC1h 45m
2026-07-05 ASA475 - Jul 5, 18:50 UTCJul 5, 21:10 UTC2h 20m
2026-07-05 ASA1471 - Jul 5, 14:40 UTCJul 5, 17:05 UTC2h 25m
2026-07-05 ASA614 - Jul 5, 06:00 UTCJul 5, 08:05 UTC2h 5m
2026-07-04 ASA1300 - Jul 4, 23:15 UTCJul 5, 01:30 UTC2h 15m
2026-07-04 ASA230 EWR → SEA Jul 4, 15:20 UTCJul 4, 20:45 UTC5h 25m
2026-07-04 ASA314 SEA → EWR Jul 4, 05:50 UTCJul 4, 10:30 UTC4h 40m
2026-07-03 ASA329 ORD → SEA Jul 3, 04:50 UTCJul 3, 08:45 UTC3h 55m
2026-07-02 ASA410 SEA → ORD Jul 2, 20:40 UTCJul 3, 00:30 UTC3h 50m
2026-07-02 ASA482 BZE → SEA Jul 2, 16:40 UTCJul 2, 19:00 UTC2h 20m
2026-07-02 ASA63 SFO → LAX Jul 2, 03:45 UTCJul 2, 05:45 UTC2h 0m
2026-07-01 ASA313 SEA → DTW Jul 1, 21:45 UTCJul 2, 02:10 UTC4h 25m
2026-07-01 ASA313 SEA → DTW Jul 1, 16:35 UTCJul 1, 20:20 UTC3h 45m

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 N949AK page for operator, model, and routing details .

Mode-S AD2EA1 frequently asked

What is Mode-S code AD2EA1?
AD2EA1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N949AK.
Where is Mode-S AD2EA1 registered?
Mode-S code AD2EA1 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 AD2EA1 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD2EA1, octal 53227241, decimal 11,349,665.
What flights does AD2EA1 operate?
Mode-S AD2EA1 has broadcast 20 distinct callsigns, including ASA62, ASA560, ASA205, ASA1495, ASA94.