Apparatus

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sensors Mode-S transponder

AD5FE7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N961AK · BOEING 737 MAX 9 · operated by BANK OF UTAH TRUSTEE

Hex
AD5FE7
Octal
53257747
Decimal
11,362,279
Country
US
Tail
N961AK
Type
B39M
No current signal · last broadcast 9h ago
Flights observed
393
Distinct callsigns
20
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S AD5FE7.

Country allocation

The ICAO 24-bit address AD5FE7 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
ASA252 Alaska Airlines 8 2026-06-14
ASA253 Alaska Airlines 7 2026-06-14
ASA738 Alaska Airlines 6 2026-06-20
ASA306 Alaska Airlines 6 2026-06-01
ASA626 Alaska Airlines 5 2026-06-06
ASA618 - 5 2026-07-09
ASA267 Alaska Airlines 5 2026-06-07
ASA782 Alaska Airlines 4 2026-05-04
ASA67 - 4 2026-06-25
ASA553 - 4 2026-07-12
ASA299 - 4 2026-07-07
ASA246 - 4 2026-06-16
ASA211 Alaska Airlines 4 2026-06-08
ASA670 - 3 2026-04-16
ASA603 Alaska Airlines 3 2026-05-24
ASA562 Alaska Airlines 3 2026-05-30
ASA559 Alaska Airlines 3 2026-05-30
ASA474 - 3 2026-07-01
ASA434 - 3 2026-07-01
ASA298 Alaska Airlines 3 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ASA333 - Jul 13, 22:25 UTCJul 14, 03:50 UTC5h 25m
2026-07-13 ASA616 - Jul 13, 07:01 UTCJul 13, 20:10 UTC13h 10m
2026-07-13 ASA524 SEA → LAX Jul 13, 01:20 UTCJul 13, 03:45 UTC2h 25m
2026-07-12 ASA567 - Jul 12, 21:15 UTCJul 12, 23:10 UTC1h 55m
2026-07-12 ASA565 SEA → ONT Jul 12, 17:50 UTCJul 12, 20:10 UTC2h 20m
2026-07-12 ASA554 OKC → SEA Jul 12, 12:10 UTCJul 12, 15:35 UTC3h 25m
2026-07-12 ASA553 SEA → OKC Jul 12, 02:15 UTCJul 12, 05:10 UTC2h 55m
2026-07-12 ASA553 SEA → OKC Jul 12, 02:11 UTCJul 12, 05:05 UTC2h 54m
2026-07-11 ASA425 PHX → SEA Jul 11, 21:55 UTCJul 12, 00:25 UTC2h 30m
2026-07-11 ASA425 PHX → SEA Jul 11, 21:55 UTCJul 12, 00:21 UTC2h 26m
2026-07-11 ASA747 - Jul 11, 17:40 UTCJul 11, 20:15 UTC2h 35m
2026-07-11 ASA1572 LAS → PAE Jul 11, 14:15 UTCJul 11, 16:15 UTC2h 0m
2026-07-11 ASA605 - Jul 11, 01:35 UTCJul 11, 03:45 UTC2h 10m
2026-07-10 ASA674 PHX → PAE Jul 10, 21:35 UTCJul 11, 00:10 UTC2h 35m
2026-07-10 ASA716 SFO → SAN Jul 10, 17:50 UTCJul 10, 20:00 UTC2h 10m
2026-07-10 ASA541 AUS → PDX Jul 10, 12:30 UTCJul 10, 16:10 UTC3h 40m
2026-07-10 ASA372 SEA → AUS Jul 10, 02:00 UTCJul 10, 05:25 UTC3h 25m
2026-07-09 ASA618 STL → SEA Jul 9, 20:15 UTCJul 10, 00:00 UTC3h 45m
2026-07-09 ASA618 SEA → STL Jul 9, 15:15 UTCJul 9, 18:35 UTC3h 20m
2026-07-09 ASA244 - Jul 9, 06:00 UTCJul 9, 06:50 UTC50m
2026-07-08 ASA254 - Jul 8, 18:30 UTCJul 8, 19:10 UTC40m
2026-07-08 ASA254 SAN → OGG Jul 8, 18:27 UTCJul 8, 23:36 UTC5h 9m
2026-07-08 ASA1557 SFO → SAN Jul 8, 15:00 UTCJul 8, 16:10 UTC1h 10m
2026-07-08 ASA1557 SFO → SAN Jul 8, 14:56 UTCJul 8, 16:03 UTC1h 7m
2026-07-08 ASA628 SEA → SFO Jul 8, 04:00 UTCJul 8, 05:45 UTC1h 45m
2026-07-07 ASA289 PHX → SEA Jul 7, 23:05 UTCJul 8, 01:35 UTC2h 30m
2026-07-07 ASA1371 SEA → PHX Jul 7, 19:10 UTCJul 7, 21:30 UTC2h 20m
2026-07-07 ASA1371 SEA → PHX Jul 7, 19:06 UTCJul 7, 21:27 UTC2h 21m
2026-07-07 ASA299 EWR → SEA Jul 7, 11:55 UTCJul 7, 17:00 UTC5h 5m
2026-07-07 ASA1631 SFO → EWR Jul 7, 04:50 UTCJul 7, 09:40 UTC4h 50m
2026-07-06 ASA1350 - Jul 6, 22:00 UTCJul 7, 02:10 UTC4h 10m
2026-07-06 ASA1345 SEA → BNA Jul 6, 16:25 UTCJul 6, 20:25 UTC4h 0m
2026-07-06 ASA557 - Jul 6, 11:10 UTCJul 6, 14:10 UTC3h 0m
2026-07-06 ASA556 SFO → IAD Jul 6, 02:15 UTCJul 6, 04:50 UTC2h 35m
2026-07-05 ASA652 - Jul 5, 22:30 UTCJul 6, 00:10 UTC1h 40m
2026-07-05 ASA652 SIT → SEA Jul 5, 22:24 UTCJul 6, 00:01 UTC1h 37m
2026-07-05 ASA633 - Jul 5, 19:05 UTCJul 5, 20:55 UTC1h 50m
2026-07-05 ASA459 - Jul 5, 11:20 UTCJul 5, 17:05 UTC5h 45m
2026-07-04 ASA358 PDX → BNH Jul 4, 14:15 UTCJul 4, 19:05 UTC4h 50m
2026-07-04 ASA1807 DEN → PDX Jul 4, 01:40 UTCJul 4, 03:55 UTC2h 15m
2026-07-03 ASA1809 PDX → DEN Jul 3, 21:55 UTCJul 4, 00:10 UTC2h 15m
2026-07-03 ASA1467 LAS → PDX Jul 3, 18:30 UTCJul 3, 19:59 UTC1h 29m
2026-07-03 ASA1467 - Jul 3, 18:05 UTCJul 3, 18:10 UTC5m
2026-07-03 ASA627 PDX → LAS Jul 3, 14:45 UTCJul 3, 16:30 UTC1h 45m
2026-07-03 ASA1566 BOI → PDX Jul 3, 12:10 UTCJul 3, 13:05 UTC55m
2026-07-03 ASA1524 DTW → SEA Jul 3, 04:55 UTCJul 3, 05:45 UTC50m
2026-07-02 ASA1538 STL → PDX Jul 2, 23:00 UTCJul 3, 02:35 UTC3h 35m
2026-07-02 ASA1635 PDX → STL Jul 2, 18:20 UTCJul 2, 21:45 UTC3h 25m
2026-07-02 ASA679 SJC → PDX Jul 2, 15:15 UTCJul 2, 16:40 UTC1h 25m
2026-07-02 ASA1624 SAN → SJC Jul 2, 06:15 UTCJul 2, 07:15 UTC1h 0m

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 N961AK page for operator, model, and routing details .

Mode-S AD5FE7 frequently asked

What is Mode-S code AD5FE7?
AD5FE7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N961AK.
Where is Mode-S AD5FE7 registered?
Mode-S code AD5FE7 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 AD5FE7 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD5FE7, octal 53257747, decimal 11,362,279.
What flights does AD5FE7 operate?
Mode-S AD5FE7 has broadcast 20 distinct callsigns, including ASA252, ASA253, ASA738, ASA306, ASA626.