Apparatus

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sensors Mode-S transponder

A5B944

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N468VX · operated by AEROTRUST SERVICES CORP TRUSTEE

Hex
A5B944
Octal
51334504
Decimal
10,860,868
Country
US
Tail
N468VX
Type
B734
No current signal · last broadcast 16h ago
Flights observed
128
Distinct callsigns
19
Country
US
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S A5B944.

Country allocation

The ICAO 24-bit address A5B944 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 19 distinct

Callsign Airline Flights Last seen
ACL865 - 37 2026-07-17
ACL864 - 21 2026-07-17
ACL1165 Itali Airlines 11 2026-07-12
ACL1163 Itali Airlines 9 2026-07-12
N468VX - 7 2026-07-16
ACL1171 - 6 2026-07-05
ACL1166 - 6 2026-07-12
ACL1164 - 6 2026-07-12
ACL1172 - 4 2026-06-25
ACL1169 Itali Airlines 4 2026-05-28
ACL1167 - 4 2026-07-16
ACL1170 Itali Airlines 3 2026-05-21
ACL862 - 2 2026-06-15
ACL1154 Itali Airlines 2 2026-06-10
ACL1153 Itali Airlines 2 2026-06-10
ACL863 - 1 2026-06-15
ACL11772 - 1 2026-05-20
ACL1168 Itali Airlines 1 2026-05-18
ACL1159 Itali Airlines 1 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 ACL865 - Jul 17, 15:05 UTCJul 17, 15:29 UTC25m
2026-07-17 ACL864 - Jul 17, 12:25 UTCJul 17, 12:35 UTC10m
2026-07-16 N468VX - Jul 16, 18:25 UTCJul 16, 20:45 UTC2h 20m
2026-07-16 ACL1167 - Jul 16, 15:19 UTCJul 16, 15:49 UTC30m
2026-07-15 N468VX - Jul 15, 18:35 UTCJul 15, 20:45 UTC2h 10m
2026-07-15 ACL865 - Jul 15, 13:55 UTCJul 15, 14:20 UTC25m
2026-07-15 ACL865 - Jul 15, 12:55 UTCJul 15, 13:05 UTC10m
2026-07-15 ACL864 - Jul 15, 10:15 UTCJul 15, 11:30 UTC1h 15m
2026-07-12 ACL1163 CCS → BOG Jul 12, 19:50 UTCJul 12, 20:05 UTC15m
2026-07-12 ACL1164 - Jul 12, 15:20 UTCJul 12, 15:35 UTC15m
2026-07-12 ACL1165 MIA → BOG Jul 12, 09:45 UTCJul 12, 12:55 UTC3h 10m
2026-07-12 ACL1166 - Jul 12, 05:01 UTCJul 12, 08:15 UTC3h 15m
2026-07-11 ACL865 - Jul 11, 14:35 UTCJul 11, 14:50 UTC15m
2026-07-11 ACL865 - Jul 11, 13:25 UTCJul 11, 13:35 UTC10m
2026-07-11 ACL864 - Jul 11, 10:20 UTCJul 11, 10:35 UTC15m
2026-07-10 ACL1164 - Jul 10, 16:55 UTCJul 10, 17:10 UTC15m
2026-07-10 N468VX - Jul 10, 00:20 UTCJul 10, 00:40 UTC20m
2026-07-09 N468VX - Jul 9, 20:05 UTCJul 9, 20:15 UTC10m
2026-07-09 N468VX - Jul 9, 18:05 UTCJul 9, 18:15 UTC10m
2026-07-09 ACL1167 - Jul 9, 15:00 UTCJul 9, 15:30 UTC30m
2026-07-08 N468VX - Jul 8, 00:15 UTCJul 8, 00:30 UTC15m
2026-07-07 N468VX - Jul 7, 17:55 UTCJul 7, 20:10 UTC2h 15m
2026-07-07 ACL865 - Jul 7, 14:50 UTCJul 7, 15:10 UTC20m
2026-07-06 ACL1163 CCS → BOG Jul 6, 20:00 UTCJul 6, 20:15 UTC15m
2026-07-05 ACL1171 - Jul 5, 13:10 UTCJul 5, 13:25 UTC15m
2026-07-04 ACL865 - Jul 4, 14:05 UTCJul 5, 10:05 UTC20h 0m
2026-06-28 ACL1163 CCS → BOG Jun 28, 11:45 UTCJun 28, 14:19 UTC2h 35m
2026-06-27 ACL865 - Jun 27, 13:04 UTCJun 28, 11:45 UTC22h 40m
2026-06-27 ACL864 - Jun 27, 11:35 UTCJun 27, 11:55 UTC20m
2026-06-26 ACL865 - Jun 26, 13:49 UTCJun 26, 14:19 UTC30m
2026-06-26 ACL864 - Jun 26, 12:14 UTCJun 26, 12:39 UTC25m
2026-06-25 ACL1171 - Jun 25, 13:09 UTCJun 25, 13:35 UTC25m
2026-06-25 ACL1172 - Jun 25, 11:25 UTCJun 25, 11:50 UTC25m
2026-06-24 ACL1172 - Jun 24, 13:14 UTCJun 25, 11:50 UTC22h 35m
2026-06-23 ACL865 - Jun 23, 13:24 UTCJun 23, 13:34 UTC10m
2026-06-23 ACL864 - Jun 23, 11:04 UTCJun 23, 11:14 UTC10m
2026-06-21 ACL1165 MIA → BOG Jun 21, 09:29 UTCJun 21, 09:59 UTC30m
2026-06-21 ACL1166 BOG → MIA Jun 21, 07:29 UTCJun 21, 07:55 UTC25m
2026-06-19 ACL865 - Jun 19, 14:09 UTCJun 19, 14:24 UTC15m
2026-06-19 ACL865 - Jun 19, 13:04 UTCJun 19, 13:14 UTC10m
2026-06-19 ACL864 - Jun 19, 10:29 UTCJun 19, 10:44 UTC15m
2026-06-18 ACL1163 CCS → BOG Jun 18, 03:00 UTCJun 18, 03:15 UTC15m
2026-06-17 ACL1165 MIA → BOG Jun 17, 18:15 UTCJun 17, 21:00 UTC2h 45m
2026-06-17 ACL1159 SJO → MIA Jun 17, 10:40 UTCJun 17, 16:25 UTC5h 45m
2026-06-15 ACL863 - Jun 15, 16:09 UTCJun 15, 16:24 UTC15m
2026-06-15 ACL862 - Jun 15, 08:25 UTCJun 15, 13:45 UTC5h 20m
2026-06-14 ACL1163 CCS → BOG Jun 14, 20:05 UTCJun 14, 20:20 UTC15m
2026-06-14 ACL1165 MIA → BOG Jun 14, 09:55 UTCJun 14, 10:20 UTC25m
2026-06-14 ACL1166 BOG → MIA Jun 14, 07:30 UTCJun 14, 08:00 UTC30m
2026-06-12 ACL865 - Jun 12, 13:05 UTCJun 12, 13:15 UTC10m

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 N468VX page for operator, model, and routing details .

Mode-S A5B944 frequently asked

What is Mode-S code A5B944?
A5B944 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N468VX.
Where is Mode-S A5B944 registered?
Mode-S code A5B944 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 A5B944 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5B944, octal 51334504, decimal 10,860,868.
What flights does A5B944 operate?
Mode-S A5B944 has broadcast 19 distinct callsigns, including ACL865, ACL864, ACL1165, ACL1163, N468VX.