Apparatus

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sensors Mode-S transponder

A865E3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N640GT · BOEING 767-300 · operated by ATLAS AIR INC

Hex
A865E3
Octal
52062743
Decimal
11,036,131
Country
US
Tail
N640GT
Type
B763
No current signal · last broadcast 1d ago
Flights observed
124
Distinct callsigns
20
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A865E3.

Country allocation

The ICAO 24-bit address A865E3 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
GTI8189 - 34 2026-06-28
GTI8190 - 33 2026-06-29
GTI8354 - 9 2026-07-07
GTI8353 - 7 2026-07-05
GTI8774 Atlas Air 6 2026-06-06
GTI8674 - 5 2026-07-01
GTI8511 Atlas Air 4 2026-05-06
GTI8053 - 4 2026-07-12
CMB536 - 4 2026-06-03
GTI9008 - 3 2026-07-05
GTI8189A - 3 2026-05-08
GTI9005 Atlas Air 2 2026-06-14
GTI8278 Atlas Air 2 2026-04-19
GTI9965 Atlas Air 1 2026-06-03
GTI9911 Atlas Air 1 2026-05-06
GTI9880 Atlas Air 1 2026-04-20
GTI9190 Atlas Air 1 2026-05-31
GTI9086 - 1 2026-07-12
GTI9026 Atlas Air 1 2026-06-11
GTI8718 - 1 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 GTI9086 - Jul 12, 20:30 UTCJul 13, 01:50 UTC5h 20m
2026-07-12 GTI8053 - Jul 12, 16:30 UTCJul 12, 16:55 UTC25m
2026-07-11 GTI8053 - Jul 11, 05:20 UTCJul 11, 05:40 UTC20m
2026-07-10 GTI8053 - Jul 10, 17:35 UTCJul 10, 21:35 UTC4h 0m
2026-07-09 GTI8053 SEA → ICN Jul 9, 02:05 UTCJul 9, 13:00 UTC10h 55m
2026-07-07 GTI8354 OSN → SEA Jul 7, 03:50 UTCJul 7, 17:30 UTC13h 40m
2026-07-05 GTI8353 SEA → OSN Jul 5, 17:45 UTCJul 6, 07:20 UTC13h 35m
2026-07-05 GTI9008 - Jul 5, 04:45 UTCJul 5, 05:05 UTC20m
2026-07-01 GTI8674 - Jul 1, 22:30 UTCJul 2, 03:55 UTC5h 25m
2026-07-01 GTI8674 - Jul 1, 18:05 UTCJul 1, 18:25 UTC20m
2026-07-01 GTI8674 - Jul 1, 05:00 UTCJul 1, 05:35 UTC35m
2026-06-30 GTI8674 - Jun 30, 12:10 UTCJun 30, 23:00 UTC10h 50m
2026-06-30 GTI8674 SEA → ANC Jun 30, 06:15 UTCJun 30, 09:20 UTC3h 5m
2026-06-29 GTI8190 OKO → SEA Jun 29, 13:44 UTCJun 29, 22:39 UTC8h 55m
2026-06-29 GTI8190 - Jun 29, 09:10 UTCJun 29, 10:04 UTC55m
2026-06-29 GTI8190 - Jun 29, 06:54 UTCJun 29, 07:05 UTC10m
2026-06-28 GTI8189 - Jun 28, 10:10 UTCJun 28, 10:24 UTC15m
2026-06-28 GTI8189 - Jun 28, 06:55 UTCJun 28, 08:00 UTC1h 5m
2026-06-27 GTI8189 SEA → OKO Jun 27, 16:44 UTCJun 28, 02:54 UTC10h 10m
2026-06-24 GTI8354 YWG → LGG Jun 24, 06:10 UTCJun 24, 14:29 UTC8h 20m
2026-06-24 GTI8354 YWG → LGG Jun 24, 01:09 UTCJun 24, 02:49 UTC1h 40m
2026-06-22 GTI8353 SEA → ANC Jun 22, 14:10 UTCJun 23, 03:34 UTC13h 25m
2026-06-20 GTI8190 OKO → SEA Jun 20, 13:09 UTCJun 20, 13:49 UTC40m
2026-06-20 GTI8190 OKO → SEA Jun 20, 09:14 UTCJun 20, 10:20 UTC1h 5m
2026-06-20 GTI8190 OKO → SEA Jun 20, 07:04 UTCJun 20, 07:29 UTC25m
2026-06-19 GTI8189 SEA → OKO Jun 19, 09:09 UTCJun 19, 09:24 UTC15m
2026-06-19 GTI8189 SEA → OKO Jun 19, 06:35 UTCJun 19, 07:39 UTC1h 5m
2026-06-18 GTI8189 SEA → OKO Jun 18, 20:05 UTCJun 19, 03:39 UTC7h 34m
2026-06-18 GTI8189 SEA → OKO Jun 18, 15:20 UTCJun 18, 18:30 UTC3h 10m
2026-06-18 GTI9008 BFI → SEA Jun 18, 02:50 UTCJun 18, 03:00 UTC10m
2026-06-14 GTI9005 SNN → ICN Jun 14, 19:35 UTCJun 14, 19:55 UTC20m
2026-06-13 GTI8190 OKO → SEA Jun 13, 12:15 UTCJun 13, 21:05 UTC8h 50m
2026-06-13 GTI8190 OKO → SEA Jun 13, 07:55 UTCJun 13, 08:55 UTC1h 0m
2026-06-13 GTI8190 OKO → SEA Jun 13, 06:20 UTCJun 13, 06:30 UTC10m
2026-06-12 GTI8189 SEA → OKO Jun 12, 10:45 UTCJun 12, 10:55 UTC10m
2026-06-12 GTI8189 SEA → OKO Jun 12, 08:15 UTCJun 12, 09:25 UTC1h 10m
2026-06-12 GTI8189 SEA → OKO Jun 12, 04:05 UTCJun 12, 04:45 UTC40m
2026-06-11 GTI8189 SEA → OKO Jun 11, 21:20 UTCJun 11, 23:10 UTC1h 50m
2026-06-11 GTI8189 SEA → OKO Jun 11, 16:20 UTCJun 11, 19:35 UTC3h 15m
2026-06-11 GTI9026 CVG → SEA Jun 11, 05:05 UTCJun 11, 09:25 UTC4h 20m
2026-06-06 GTI8774 HKG → GYD Jun 6, 00:45 UTCJun 6, 02:45 UTC2h 0m
2026-06-05 GTI8774 HKG → GYD Jun 5, 18:40 UTCJun 5, 22:35 UTC3h 55m
2026-06-05 GTI8774 HKG → GYD Jun 5, 08:25 UTCJun 5, 15:40 UTC7h 15m
2026-06-04 GTI8774 HKG → GYD Jun 4, 13:50 UTCJun 4, 15:25 UTC1h 35m
2026-06-04 GTI8774 HKG → GYD Jun 4, 09:50 UTCJun 4, 12:00 UTC2h 10m
2026-06-03 GTI8774 HKG → GYD Jun 3, 21:35 UTCJun 4, 05:00 UTC7h 25m
2026-06-03 GTI9965 CVG → ICN Jun 3, 07:15 UTCJun 3, 16:55 UTC9h 40m
2026-06-03 CMB536 - Jun 3, 03:10 UTCJun 3, 04:00 UTC50m
2026-06-02 CMB536 - Jun 2, 18:25 UTCJun 2, 23:10 UTC4h 45m
2026-06-01 CMB536 - Jun 1, 13:40 UTCJun 1, 17:55 UTC4h 15m

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 N640GT page for operator, model, and routing details .

Mode-S A865E3 frequently asked

What is Mode-S code A865E3?
A865E3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N640GT.
Where is Mode-S A865E3 registered?
Mode-S code A865E3 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 A865E3 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A865E3, octal 52062743, decimal 11,036,131.
What flights does A865E3 operate?
Mode-S A865E3 has broadcast 20 distinct callsigns, including GTI8189, GTI8190, GTI8354, GTI8353, GTI8774.