Apparatus

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sensors Mode-S transponder

A5B2B0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N4663K · operated by UMB BANK NA TRUSTEE

Hex
A5B2B0
Octal
51331260
Decimal
10,859,184
Country
US
Tail
N4663K
Type
A333
Broadcasting now · callsign ASA2608 · 9,925 ft
Flights observed
122
Distinct callsigns
15
Country
US
Last broadcast
4h ago

Current position

A5B2B0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A5B2B0 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 15 distinct

Callsign Airline Flights Last seen
ASA2614 Alaska Airlines 16 2026-05-27
ASA2605 Alaska Airlines 14 2026-05-26
ASA2749 Alaska Airlines 13 2026-05-29
ASA2609 Alaska Airlines 11 2026-05-16
ASA2602 Alaska Airlines 11 2026-05-17
ASA2612 Alaska Airlines 10 2026-05-25
ASA2608 Alaska Airlines 9 2026-05-29
ASA2607 Alaska Airlines 9 2026-05-17
ASA2621 Alaska Airlines 6 2026-05-14
ASA2617 Alaska Airlines 6 2026-05-13
ASA2620 Alaska Airlines 4 2026-05-25
ASA2616 Alaska Airlines 4 2026-05-24
ASA2613 Alaska Airlines 4 2026-05-23
ASA2604 Alaska Airlines 4 2026-05-24
AS2607 - 1 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ASA2608 JFK → CVG May 29, 21:20 UTCMay 29, 22:00 UTC40m
2026-05-29 ASA2749 HNL → SMF May 29, 06:00 UTCMay 29, 11:00 UTC5h 0m
2026-05-29 ASA2608 JFK → CVG May 29, 02:40 UTCMay 29, 03:00 UTC20m
2026-05-28 ASA2608 JFK → CVG May 28, 21:25 UTCMay 28, 22:10 UTC45m
2026-05-28 ASA2749 HNL → SMF May 28, 06:00 UTCMay 28, 11:05 UTC5h 5m
2026-05-27 ASA2608 JFK → CVG May 27, 21:05 UTCMay 27, 22:10 UTC1h 5m
2026-05-27 ASA2749 HNL → SMF May 27, 05:24 UTCMay 27, 10:20 UTC4h 55m
2026-05-27 ASA2614 ONT → HNL May 27, 02:44 UTCMay 27, 02:59 UTC15m
2026-05-26 ASA2614 ONT → HNL May 26, 21:29 UTCMay 26, 22:50 UTC1h 20m
2026-05-26 ASA2605 JFK → AFW May 26, 05:30 UTCMay 26, 09:25 UTC3h 55m
2026-05-25 ASA2612 SBD → CVG May 25, 19:59 UTCMay 25, 23:30 UTC3h 30m
2026-05-25 ASA2620 ONT → HNL May 25, 01:55 UTCMay 25, 03:55 UTC2h 0m
2026-05-24 ASA2616 AFW → JFK May 24, 19:40 UTCMay 24, 21:50 UTC2h 10m
2026-05-24 ASA2604 IAH → CVG May 24, 05:40 UTCMay 24, 07:25 UTC1h 45m
2026-05-23 ASA2613 AFW → CVG May 23, 22:05 UTCMay 24, 01:00 UTC2h 55m
2026-05-23 ASA2620 ONT → HNL May 23, 01:10 UTCMay 23, 04:10 UTC2h 59m
2026-05-22 ASA2616 AFW → JFK May 22, 19:25 UTCMay 22, 21:30 UTC2h 5m
2026-05-22 ASA2604 IAH → CVG May 22, 05:45 UTCMay 22, 07:30 UTC1h 45m
2026-05-21 ASA2613 AFW → CVG May 21, 21:35 UTCMay 22, 00:25 UTC2h 50m
2026-05-21 ASA2620 ONT → HNL May 21, 01:05 UTCMay 21, 04:15 UTC3h 10m
2026-05-20 ASA2616 AFW → JFK May 20, 19:05 UTCMay 20, 21:15 UTC2h 10m
2026-05-20 ASA2604 IAH → CVG May 20, 05:40 UTCMay 20, 07:50 UTC2h 10m
2026-05-19 ASA2613 AFW → CVG May 19, 21:50 UTCMay 20, 00:35 UTC2h 45m
2026-05-19 ASA2620 ONT → HNL May 19, 01:00 UTCMay 19, 03:50 UTC2h 50m
2026-05-18 ASA2616 AFW → JFK May 18, 19:05 UTCMay 18, 21:05 UTC2h 0m
2026-05-18 ASA2604 IAH → CVG May 18, 05:45 UTCMay 18, 07:30 UTC1h 45m
2026-05-17 ASA2613 AFW → CVG May 17, 21:50 UTCMay 18, 00:30 UTC2h 40m
2026-05-17 ASA2607 PDX → CVG May 17, 12:45 UTCMay 17, 14:20 UTC1h 35m
2026-05-17 ASA2602 CVG → SMF May 17, 05:30 UTCMay 17, 09:50 UTC4h 20m
2026-05-16 ASA2609 IAH → SBD May 16, 15:05 UTCMay 16, 18:45 UTC3h 40m
2026-05-16 ASA2605 JFK → AFW May 16, 05:25 UTCMay 16, 09:21 UTC3h 56m
2026-05-15 ASA2609 IAH → SBD May 15, 15:00 UTCMay 15, 18:50 UTC3h 50m
2026-05-15 ASA2605 JFK → AFW May 15, 05:25 UTCMay 15, 09:20 UTC3h 55m
2026-05-14 ASA2612 SBD → CVG May 14, 20:10 UTCMay 14, 23:40 UTC3h 30m
2026-05-14 ASA2607 PDX → CVG May 14, 12:45 UTCMay 14, 14:35 UTC1h 50m
2026-05-14 ASA2621 SBD → PDX May 14, 03:55 UTCMay 14, 06:00 UTC2h 5m
2026-05-13 ASA2617 AFW → SMF May 13, 20:20 UTCMay 14, 00:20 UTC4h 0m
2026-05-13 ASA2608 JFK → CVG May 13, 13:31 UTCMay 13, 17:15 UTC3h 45m
2026-05-13 ASA2621 SBD → PDX May 13, 03:55 UTCMay 13, 05:45 UTC1h 50m
2026-05-12 ASA2617 AFW → SMF May 12, 19:55 UTCMay 13, 00:05 UTC4h 10m
2026-05-12 ASA2608 JFK → CVG May 12, 13:10 UTCMay 12, 16:55 UTC3h 45m
2026-05-12 ASA2602 CVG → SMF May 12, 04:50 UTCMay 12, 09:25 UTC4h 35m
2026-05-11 ASA2612 SBD → CVG May 11, 20:05 UTCMay 11, 22:35 UTC2h 29m
2026-05-11 ASA2607 PDX → CVG May 11, 12:50 UTCMay 11, 14:45 UTC1h 55m
2026-05-11 ASA2621 SBD → PDX May 11, 03:55 UTCMay 11, 05:50 UTC1h 55m
2026-05-10 ASA2617 AFW → SMF May 10, 19:54 UTCMay 10, 23:55 UTC4h 0m
2026-05-10 ASA2608 JFK → CVG May 10, 13:19 UTCMay 10, 16:59 UTC3h 40m
2026-05-10 ASA2602 CVG → SMF May 10, 05:30 UTCMay 10, 09:45 UTC4h 15m
2026-05-09 ASA2609 IAH → SBD May 9, 14:55 UTCMay 9, 18:20 UTC3h 25m
2026-05-09 ASA2749 HNL → SMF May 9, 05:40 UTCMay 9, 10:40 UTC5h 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 N4663K page for operator, model, and routing details .

Mode-S A5B2B0 frequently asked

What is Mode-S code A5B2B0?
A5B2B0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N4663K.
Where is Mode-S A5B2B0 registered?
Mode-S code A5B2B0 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 A5B2B0 broadcasting right now?
Yes. Mode-S A5B2B0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5B2B0, octal 51331260, decimal 10,859,184.
What flights does A5B2B0 operate?
Mode-S A5B2B0 has broadcast 15 distinct callsigns, including ASA2614, ASA2605, ASA2749, ASA2609, ASA2602.