Apparatus

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sensors Mode-S transponder

A5E229

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N4787K · operated by UMB BANK NA TRUSTEE

Hex
A5E229
Octal
51361051
Decimal
10,871,337
Country
US
Tail
N4787K
Type
A333
No current signal · last broadcast 10d ago
Flights observed
189
Distinct callsigns
20
Country
US
Last broadcast
10d ago

Last known position

Most recent position reported by Mode-S A5E229.

Country allocation

The ICAO 24-bit address A5E229 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
ASA2620 Alaska Airlines 19 2026-05-17
ASA2613 Alaska Airlines 17 2026-05-15
ASA2616 - 14 2026-06-22
ASA2610 Alaska Airlines 14 2026-06-27
ASA2603 Alaska Airlines 14 2026-06-25
ASA2629 - 12 2026-06-26
ASA2628 Alaska Airlines 11 2026-06-26
ASA2614 - 11 2026-07-03
ASA2604 Alaska Airlines 10 2026-05-16
ASA2619 - 8 2026-07-04
ASA2617 - 7 2026-06-29
ASA2618 Alaska Airlines 6 2026-05-14
ASA2612 Alaska Airlines 6 2026-06-23
ASA2608 Alaska Airlines 6 2026-05-22
ASA2606 Alaska Airlines 6 2026-05-14
ASA2621 Alaska Airlines 4 2026-05-22
ASA2601 - 4 2026-06-29
ASA2627 Alaska Airlines 3 2026-06-23
ASA2622 - 3 2026-06-28
ASA2602 Alaska Airlines 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 ASA2619 PDX → CVG Jul 4, 04:30 UTCJul 4, 08:30 UTC4h 0m
2026-07-03 ASA2614 - Jul 3, 19:10 UTCJul 3, 23:30 UTC4h 20m
2026-07-03 ASA2619 PDX → CVG Jul 3, 04:30 UTCJul 3, 08:30 UTC4h 0m
2026-07-02 ASA2614 - Jul 2, 20:35 UTCJul 3, 00:35 UTC4h 0m
2026-07-02 ASA2619 PDX → CVG Jul 2, 04:25 UTCJul 2, 08:10 UTC3h 45m
2026-07-01 ASA2614 - Jul 1, 19:30 UTCJul 1, 23:40 UTC4h 10m
2026-07-01 ASA2619 PDX → CVG Jul 1, 04:25 UTCJul 1, 08:15 UTC3h 50m
2026-06-30 ASA2614 - Jun 30, 19:05 UTCJun 30, 23:10 UTC4h 5m
2026-06-30 ASA2619 PDX → CVG Jun 30, 04:20 UTCJun 30, 08:15 UTC3h 55m
2026-06-29 ASA2614 - Jun 29, 19:20 UTCJun 29, 23:29 UTC4h 10m
2026-06-29 ASA2601 PDX → CVG Jun 29, 13:00 UTCJun 29, 16:59 UTC4h 0m
2026-06-29 ASA2617 SBD → PDX Jun 29, 04:14 UTCJun 29, 06:14 UTC2h 0m
2026-06-28 ASA2622 - Jun 28, 20:19 UTCJun 29, 00:24 UTC4h 5m
2026-06-28 ASA2619 PDX → CVG Jun 28, 04:25 UTCJun 28, 08:09 UTC3h 45m
2026-06-27 ASA2614 - Jun 27, 19:15 UTCJun 27, 23:25 UTC4h 10m
2026-06-27 ASA2610 SMF → CVG Jun 27, 04:54 UTCJun 27, 06:44 UTC1h 50m
2026-06-26 ASA2629 - Jun 26, 20:10 UTCJun 26, 22:55 UTC2h 45m
2026-06-26 ASA2628 IAH → SBD Jun 26, 02:00 UTCJun 26, 04:59 UTC3h 0m
2026-06-25 ASA2603 CVG → IAH Jun 25, 19:05 UTCJun 25, 21:05 UTC2h 0m
2026-06-25 ASA2610 SMF → CVG Jun 25, 04:40 UTCJun 25, 06:30 UTC1h 50m
2026-06-24 ASA2629 SBD → IAH Jun 24, 20:30 UTCJun 24, 23:04 UTC2h 35m
2026-06-24 ASA2628 IAH → SBD Jun 24, 01:55 UTCJun 24, 04:44 UTC2h 50m
2026-06-23 ASA2629 SBD → IAH Jun 23, 20:19 UTCJun 23, 23:14 UTC2h 55m
2026-06-23 ASA2612 SBD → CVG Jun 23, 13:39 UTCJun 23, 15:34 UTC1h 55m
2026-06-23 ASA2627 CVG → PDX Jun 23, 04:55 UTCJun 23, 09:14 UTC4h 20m
2026-06-22 ASA2616 SBD → CVG Jun 22, 20:19 UTCJun 22, 23:39 UTC3h 20m
2026-06-22 ASA2628 IAH → SBD Jun 22, 02:04 UTCJun 22, 04:59 UTC2h 55m
2026-06-21 ASA2603 CVG → IAH Jun 21, 19:00 UTCJun 21, 21:10 UTC2h 10m
2026-06-21 ASA2619 PDX → CVG Jun 21, 04:24 UTCJun 21, 07:59 UTC3h 35m
2026-06-20 ASA2614 ONT → HNL Jun 20, 19:15 UTCJun 20, 23:39 UTC4h 25m
2026-06-20 ASA2610 SMF → CVG Jun 20, 04:39 UTCJun 20, 06:24 UTC1h 45m
2026-06-19 ASA2629 SBD → IAH Jun 19, 20:24 UTCJun 19, 23:49 UTC3h 25m
2026-06-19 ASA2628 IAH → SBD Jun 19, 01:54 UTCJun 19, 04:54 UTC3h 0m
2026-06-18 ASA2603 CVG → IAH Jun 18, 19:05 UTCJun 18, 21:10 UTC2h 5m
2026-06-18 ASA2610 SMF → CVG Jun 18, 04:35 UTCJun 18, 06:50 UTC2h 15m
2026-06-17 ASA2603 CVG → IAH Jun 17, 19:10 UTCJun 17, 21:15 UTC2h 5m
2026-06-17 ASA2610 SMF → CVG Jun 17, 04:40 UTCJun 17, 06:25 UTC1h 45m
2026-06-16 ASA2629 SBD → IAH Jun 16, 20:40 UTCJun 16, 23:30 UTC2h 50m
2026-06-16 ASA2628 IAH → SBD Jun 16, 03:15 UTCJun 16, 06:10 UTC2h 55m
2026-06-15 ASA2603 CVG → IAH Jun 15, 19:10 UTCJun 15, 21:55 UTC2h 45m
2026-06-15 ASA2610 SMF → CVG Jun 15, 04:40 UTCJun 15, 06:24 UTC1h 45m
2026-06-14 ASA2603 CVG → IAH Jun 14, 20:55 UTCJun 14, 23:10 UTC2h 14m
2026-06-14 ASA2610 SMF → CVG Jun 14, 04:35 UTCJun 14, 06:50 UTC2h 15m
2026-06-13 ASA2603 CVG → IAH Jun 13, 19:00 UTCJun 13, 21:05 UTC2h 5m
2026-06-13 ASA2610 SMF → CVG Jun 13, 04:40 UTCJun 13, 06:30 UTC1h 50m
2026-06-12 ASA2603 CVG → IAH Jun 12, 19:20 UTCJun 12, 21:25 UTC2h 5m
2026-06-12 ASA2610 SMF → CVG Jun 12, 04:35 UTCJun 12, 06:30 UTC1h 55m
2026-06-11 ASA2603 CVG → IAH Jun 11, 19:20 UTCJun 11, 21:20 UTC2h 0m
2026-06-11 ASA2610 SMF → CVG Jun 11, 04:50 UTCJun 11, 06:40 UTC1h 50m
2026-06-10 ASA2629 SBD → IAH Jun 10, 20:10 UTCJun 10, 22:40 UTC2h 30m

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 N4787K page for operator, model, and routing details .

Mode-S A5E229 frequently asked

What is Mode-S code A5E229?
A5E229 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N4787K.
Where is Mode-S A5E229 registered?
Mode-S code A5E229 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 A5E229 broadcasting right now?
No active broadcast right now. Last signal was 10d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5E229, octal 51361051, decimal 10,871,337.
What flights does A5E229 operate?
Mode-S A5E229 has broadcast 20 distinct callsigns, including ASA2620, ASA2613, ASA2616, ASA2610, ASA2603.