Apparatus

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sensors Mode-S transponder

A4F5A7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N419AZ · BOEING 767-300 · operated by CARGO AIRCRAFT MANAGEMENT INC

Hex
A4F5A7
Octal
51172647
Decimal
10,810,791
Country
US
Tail
N419AZ
Type
B763
Transponder active on ground
Flights observed
200
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A4F5A7.

Country allocation

The ICAO 24-bit address A4F5A7 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
ATN3349 - 10 2026-07-03
ATN3368 Air Transport International 8 2026-04-27
ATN3372 - 6 2026-06-25
ATN9701 Air Transport International 5 2026-04-28
ATN3490 Air Transport International 5 2026-04-27
ATN3390 - 5 2026-07-17
ATN3364 - 5 2026-07-09
ATN3357 - 5 2026-07-08
ATN3305 - 5 2026-06-17
ATN3386 - 4 2026-07-14
ATN3376 - 4 2026-07-16
ATN3374 - 4 2026-07-10
ATN3371 - 4 2026-07-13
ATN3367 - 4 2026-07-06
ATN3356 - 4 2026-07-14
ATN3353 - 4 2026-06-18
ATN3344 - 4 2026-06-17
ATN3327 - 4 2026-07-15
ATN3324 - 4 2026-07-08
ATN3304 - 4 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 ATN3319 - Jul 18, 03:20 UTCJul 18, 03:45 UTC25m
2026-07-17 ATN3339 IAH → CVG Jul 17, 23:00 UTCJul 18, 01:00 UTC2h 0m
2026-07-17 ATN3342 CVG → BDL Jul 17, 09:50 UTCJul 17, 13:10 UTC3h 20m
2026-07-17 ATN3390 - Jul 17, 05:10 UTCJul 17, 06:29 UTC1h 20m
2026-07-16 ATN3385 - Jul 16, 21:19 UTCJul 16, 22:49 UTC1h 30m
2026-07-16 ATN3376 - Jul 16, 17:40 UTCJul 16, 19:25 UTC1h 45m
2026-07-16 ATN3306 - Jul 16, 01:15 UTCJul 16, 03:20 UTC2h 5m
2026-07-15 ATN3327 - Jul 15, 18:45 UTCJul 15, 20:25 UTC1h 40m
2026-07-15 ATN3312 BDL → CVG Jul 15, 06:00 UTCJul 15, 07:30 UTC1h 30m
2026-07-15 ATN3341 - Jul 15, 01:10 UTCJul 15, 03:45 UTC2h 35m
2026-07-14 ATN3386 - Jul 14, 19:20 UTCJul 14, 21:30 UTC2h 10m
2026-07-14 ATN3356 - Jul 14, 02:15 UTCJul 14, 03:30 UTC1h 15m
2026-07-13 ATN3323 - Jul 13, 15:15 UTCJul 13, 19:10 UTC3h 55m
2026-07-13 ATN3313 KOA → ONT Jul 13, 07:01 UTCJul 13, 12:00 UTC5h 0m
2026-07-13 ATN3307 - Jul 13, 04:15 UTCJul 13, 04:35 UTC20m
2026-07-13 ATN3371 - Jul 13, 01:45 UTCJul 13, 02:01 UTC15m
2026-07-12 ATN3371 - Jul 12, 20:55 UTCJul 12, 21:30 UTC35m
2026-07-11 ATN6787 - Jul 11, 11:00 UTCJul 11, 13:40 UTC2h 40m
2026-07-10 ATN3374 - Jul 10, 04:20 UTCJul 10, 06:10 UTC1h 50m
2026-07-09 ATN3301 - Jul 9, 23:20 UTCJul 10, 01:00 UTC1h 40m
2026-07-09 ATN3370 - Jul 9, 14:50 UTCJul 9, 16:40 UTC1h 50m
2026-07-09 ATN3393 - Jul 9, 09:50 UTCJul 9, 11:35 UTC1h 45m
2026-07-09 ATN3364 - Jul 9, 02:40 UTCJul 9, 06:15 UTC3h 35m
2026-07-08 ATN3324 - Jul 8, 22:20 UTCJul 9, 00:05 UTC1h 45m
2026-07-08 ATN3357 - Jul 8, 19:10 UTCJul 8, 20:20 UTC1h 10m
2026-07-08 ATN4314 ABE → CVG Jul 8, 08:15 UTCJul 8, 09:30 UTC1h 15m
2026-07-08 ATN4308 - Jul 8, 04:45 UTCJul 8, 05:45 UTC1h 0m
2026-07-06 ATN3394 - Jul 6, 16:10 UTCJul 6, 19:25 UTC3h 15m
2026-07-06 ATN3367 SMF → PHX Jul 6, 07:05 UTCJul 6, 08:35 UTC1h 30m
2026-07-04 ATN3434 - Jul 4, 13:55 UTCJul 4, 14:40 UTC45m
2026-07-04 ATN3308 - Jul 4, 07:10 UTCJul 4, 07:25 UTC15m
2026-07-03 ATN3382 POC → HNL Jul 3, 23:20 UTCJul 4, 04:40 UTC5h 20m
2026-07-03 ATN3369 - Jul 3, 12:55 UTCJul 3, 17:45 UTC4h 50m
2026-07-03 ATN3349 - Jul 3, 09:35 UTCJul 3, 09:50 UTC15m
2026-07-03 ATN3349 - Jul 3, 04:55 UTCJul 3, 05:30 UTC35m
2026-07-02 ATN3434 - Jul 2, 13:55 UTCJul 2, 14:35 UTC40m
2026-07-02 ATN3308 - Jul 2, 06:20 UTCJul 2, 06:30 UTC10m
2026-07-01 ATN3382 - Jul 1, 22:50 UTCJul 2, 04:20 UTC5h 30m
2026-07-01 ATN3313 KOA → ONT Jul 1, 07:05 UTCJul 1, 11:55 UTC4h 50m
2026-07-01 ATN3307 - Jul 1, 04:40 UTCJul 1, 05:00 UTC20m
2026-07-01 ATN3371 - Jul 1, 02:20 UTCJul 1, 02:35 UTC15m
2026-06-30 ATN3371 - Jun 30, 21:10 UTCJun 30, 21:50 UTC40m
2026-06-30 ATN3360 HNL → LIH Jun 30, 12:10 UTCJun 30, 15:00 UTC2h 50m
2026-06-30 ATN3374 - Jun 30, 03:50 UTCJun 30, 05:35 UTC1h 45m
2026-06-29 ATN3301 - Jun 29, 23:09 UTCJun 30, 01:00 UTC1h 50m
2026-06-29 ATN3370 - Jun 29, 15:24 UTCJun 29, 17:19 UTC1h 55m
2026-06-29 ATN3393 SBD → DEN Jun 29, 09:44 UTCJun 29, 11:14 UTC1h 30m
2026-06-29 ATN3364 - Jun 29, 02:30 UTCJun 29, 06:14 UTC3h 45m
2026-06-28 ATN3324 - Jun 28, 21:55 UTCJun 28, 23:39 UTC1h 45m
2026-06-28 ATN3357 - Jun 28, 18:44 UTCJun 28, 19:55 UTC1h 10m

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 N419AZ page for operator, model, and routing details .

Mode-S A4F5A7 frequently asked

What is Mode-S code A4F5A7?
A4F5A7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N419AZ.
Where is Mode-S A4F5A7 registered?
Mode-S code A4F5A7 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 A4F5A7 broadcasting right now?
Mode-S A4F5A7 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4F5A7, octal 51172647, decimal 10,810,791.
What flights does A4F5A7 operate?
Mode-S A4F5A7 has broadcast 20 distinct callsigns, including ATN3349, ATN3368, ATN3372, ATN9701, ATN3490.