Apparatus

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sensors Mode-S transponder

A7A4E6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N592AS · BOEING 737-800 · operated by UMB BANK NA TRUSTEE

Hex
A7A4E6
Octal
51722346
Decimal
10,986,726
Country
US
Tail
N592AS
Type
B738
Broadcasting now · callsign ASA781 · 37,000 ft
Flights observed
390
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Current position

A7A4E6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7A4E6 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
ASA67 - 8 2026-06-15
ASA773 Alaska Airlines 6 2026-07-26
ASA322 - 6 2026-07-15
ASA698 Alaska Airlines 5 2026-07-23
ASA1321 - 5 2026-07-13
ASA1310 Alaska Airlines 5 2026-06-03
ASA9441 Alaska Airlines 4 2026-04-17
ASA753 Alaska Airlines 4 2026-06-05
ASA725 Alaska Airlines 4 2026-06-14
ASA699 - 4 2026-07-16
ASA656 Alaska Airlines 4 2026-06-14
ASA478 - 4 2026-07-13
ASA384 Alaska Airlines 4 2026-05-24
ASA278 Alaska Airlines 4 2026-05-06
ASA1478 - 4 2026-07-19
ASA1405 - 4 2026-07-16
ASA9661 Alaska Airlines 3 2026-07-25
ASA73 - 3 2026-06-27
ASA585 Alaska Airlines 3 2026-06-02
ASA510 Alaska Airlines 3 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA773 EWR → SAN Jul 26, 21:20 UTCJul 26, 21:30 UTC10m
2026-07-26 ASA765 SEA → SAN Jul 26, 16:05 UTCJul 26, 19:10 UTC3h 5m
2026-07-25 ASA9665 ANC → SCC Jul 25, 22:10 UTCJul 26, 02:05 UTC3h 55m
2026-07-25 ASA9660 SCC → ANC Jul 25, 18:25 UTCJul 25, 19:41 UTC1h 16m
2026-07-25 ASA9661 ANC → SCC Jul 25, 16:10 UTCJul 25, 19:40 UTC3h 30m
2026-07-25 ASA1613 JNU → ANC Jul 25, 03:00 UTCJul 25, 04:30 UTC1h 30m
2026-07-25 ASA1613 JNU → ANC Jul 25, 02:57 UTCJul 25, 04:24 UTC1h 27m
2026-07-25 ASA1537 SEA → MSO Jul 25, 00:25 UTCJul 25, 01:35 UTC1h 10m
2026-07-24 ASA44 BET → ANC Jul 24, 21:30 UTCJul 24, 22:20 UTC50m
2026-07-24 ASA43 ANC → BET Jul 24, 19:05 UTCJul 24, 19:50 UTC45m
2026-07-24 ASA663 PDX → PHX Jul 24, 03:20 UTCJul 24, 06:40 UTC3h 20m
2026-07-23 ASA698 SEA → PHX Jul 23, 22:35 UTCJul 24, 00:40 UTC2h 5m
2026-07-23 ASA738 LAS → SEA Jul 23, 19:00 UTCJul 23, 21:10 UTC2h 10m
2026-07-23 ASA210 SEA → SFO Jul 23, 13:55 UTCJul 23, 17:00 UTC3h 5m
2026-07-23 ASA1512 BZN → SEA Jul 23, 07:00 UTCJul 23, 10:20 UTC3h 20m
2026-07-22 ASA517 FLL → SEA Jul 22, 22:45 UTCJul 23, 04:40 UTC5h 55m
2026-07-22 ASA516 SEA → FLL Jul 22, 15:45 UTCJul 22, 21:05 UTC5h 20m
2026-07-21 ASA313 - Jul 21, 22:00 UTCJul 22, 02:25 UTC4h 25m
2026-07-21 ASA313 SEA → DTW Jul 21, 17:20 UTCJul 21, 20:45 UTC3h 25m
2026-07-20 ASA234 FAI → SEA Jul 20, 22:45 UTCJul 21, 03:50 UTC5h 4m
2026-07-20 ASA234 FAI → SEA Jul 20, 22:33 UTCJul 21, 03:43 UTC5h 10m
2026-07-20 ASA220 - Jul 20, 15:35 UTCJul 20, 21:05 UTC5h 30m
2026-07-20 ASA220 SAN → LIH Jul 20, 15:32 UTCJul 20, 21:13 UTC5h 41m
2026-07-20 ASA1466 PDX → SFO Jul 20, 01:40 UTCJul 20, 05:05 UTC3h 25m
2026-07-19 ASA1478 - Jul 19, 20:15 UTCJul 20, 00:20 UTC4h 5m
2026-07-19 ASA15 EWR → SEA Jul 19, 13:40 UTCJul 19, 18:10 UTC4h 30m
2026-07-18 ASA14 - Jul 18, 20:45 UTCJul 19, 01:30 UTC4h 45m
2026-07-18 ASA15 EWR → SEA Jul 18, 13:30 UTCJul 18, 18:05 UTC4h 35m
2026-07-17 ASA14 - Jul 17, 20:20 UTCJul 18, 01:10 UTC4h 50m
2026-07-17 ASA256 BOS → SAN Jul 17, 12:55 UTCJul 17, 18:15 UTC5h 20m
2026-07-17 ASA436 PDX → BOS Jul 17, 05:10 UTCJul 17, 09:55 UTC4h 45m
2026-07-17 ASA1807 DEN → PDX Jul 17, 01:29 UTCJul 17, 03:45 UTC2h 15m
2026-07-16 ASA1809 PDX → DEN Jul 16, 21:45 UTCJul 16, 23:55 UTC2h 10m
2026-07-16 ASA1405 - Jul 16, 18:05 UTCJul 16, 19:55 UTC1h 50m
2026-07-16 ASA1405 SNA → PDX Jul 16, 18:19 UTCJul 16, 19:57 UTC1h 38m
2026-07-16 ASA699 - Jul 16, 13:49 UTCJul 16, 16:15 UTC2h 25m
2026-07-15 ASA322 DFW → SEA Jul 15, 23:40 UTCJul 16, 03:10 UTC3h 30m
2026-07-15 ASA341 - Jul 15, 18:35 UTCJul 15, 22:05 UTC3h 30m
2026-07-15 ASA210 FAI → SEA Jul 15, 13:30 UTCJul 15, 16:50 UTC3h 20m
2026-07-15 ASA1512 - Jul 15, 07:15 UTCJul 15, 10:25 UTC3h 10m
2026-07-15 ASA1518 - Jul 15, 02:35 UTCJul 15, 05:40 UTC3h 5m
2026-07-15 ASA88 - Jul 15, 00:00 UTCJul 15, 00:45 UTC45m
2026-07-14 ASA89 - Jul 14, 22:15 UTCJul 14, 23:00 UTC44m
2026-07-14 ASA79 SEA → ANC Jul 14, 15:50 UTCJul 14, 19:10 UTC3h 20m
2026-07-14 ASA400 SBA → SEA Jul 14, 02:50 UTCJul 14, 04:50 UTC2h 0m
2026-07-13 ASA400 - Jul 13, 23:25 UTCJul 14, 01:45 UTC2h 20m
2026-07-13 ASA1322 - Jul 13, 20:30 UTCJul 13, 21:50 UTC1h 20m
2026-07-13 ASA1322 STS → SEA Jul 13, 20:27 UTCJul 13, 21:41 UTC1h 14m
2026-07-13 ASA1321 - Jul 13, 17:10 UTCJul 13, 18:50 UTC1h 40m
2026-07-13 ASA1321 SEA → STS Jul 13, 17:09 UTCJul 13, 18:50 UTC1h 41m

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 N592AS page for operator, model, and routing details .

Mode-S A7A4E6 frequently asked

What is Mode-S code A7A4E6?
A7A4E6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N592AS.
Where is Mode-S A7A4E6 registered?
Mode-S code A7A4E6 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 A7A4E6 broadcasting right now?
Yes. Mode-S A7A4E6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7A4E6, octal 51722346, decimal 10,986,726.
What flights does A7A4E6 operate?
Mode-S A7A4E6 has broadcast 20 distinct callsigns, including ASA67, ASA773, ASA322, ASA698, ASA1321.