Apparatus

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sensors Mode-S transponder

A88752

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N649GT · BOEING 767-300 · operated by ATLAS AIR INC

Hex
A88752
Octal
52103522
Decimal
11,044,690
Country
US
Tail
N649GT
Type
B763
No current signal · last broadcast Jul 25, 19:35 UTC
Flights observed
179
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 19:35 UTC

Last known position

Most recent position reported by Mode-S A88752.

Country allocation

The ICAO 24-bit address A88752 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
GTI8617 Atlas Air 32 2026-07-21
GTI8625 - 20 2026-07-18
GTI8621 - 19 2026-07-02
GTI8626 Atlas Air 12 2026-07-18
GTI9004 Atlas Air 11 2026-07-22
GTI8620 Atlas Air 6 2026-07-22
GTI8619 Atlas Air 6 2026-07-21
GTI8624 Atlas Air 5 2026-07-19
GTI8638 Atlas Air 4 2026-05-22
GTI8637 Atlas Air 4 2026-07-17
GTI8623 - 4 2026-07-18
GTI8012 Atlas Air 3 2026-07-25
GTI9005 Atlas Air 2 2026-04-22
GTI8913 - 2 2026-07-15
GTI8618 Atlas Air 2 2026-07-21
GTI8382 Atlas Air 2 2026-04-26
GTI8355 Atlas Air 2 2026-05-03
GTI634 Atlas Air 2 2026-05-17
GTI479 Atlas Air 2 2026-04-19
GTI475 Atlas Air 2 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 GTI8013 IAH → PHX Jul 25, 09:05 UTCJul 25, 19:35 UTC10h 30m
2026-07-25 GTI8012 HKG → ANC Jul 25, 00:25 UTCJul 25, 06:45 UTC6h 20m
2026-07-24 GTI8012 HKG → ANC Jul 24, 00:50 UTCJul 25, 00:30 UTC23h 40m
2026-07-23 GTI8012 HKG → ANC Jul 23, 17:40 UTCJul 24, 01:10 UTC7h 30m
2026-07-22 GTI9004 MIA → MAO Jul 22, 11:10 UTCJul 23, 00:55 UTC13h 45m
2026-07-22 GTI8620 ANC → SEA Jul 22, 01:45 UTCJul 22, 05:00 UTC3h 15m
2026-07-21 GTI8619 ANC → GUA Jul 21, 19:50 UTCJul 21, 22:50 UTC3h 0m
2026-07-21 GTI8618 MDE → MIA Jul 21, 08:15 UTCJul 21, 16:10 UTC7h 55m
2026-07-21 GTI8617 ANC → NRT Jul 21, 05:50 UTCJul 21, 06:00 UTC10m
2026-07-21 GTI8617 ANC → NRT Jul 21, 03:50 UTCJul 21, 04:10 UTC20m
2026-07-19 BWA8040 MIA → KIN Jul 19, 22:45 UTCJul 20, 04:35 UTC5h 50m
2026-07-19 GTI8624 NRT → SFO Jul 19, 01:10 UTCJul 19, 04:20 UTC3h 10m
2026-07-18 GTI8623 - Jul 18, 19:30 UTCJul 18, 22:35 UTC3h 5m
2026-07-18 GTI8626 MDE → MIA Jul 18, 13:40 UTCJul 18, 16:30 UTC2h 50m
2026-07-18 GTI8626 MDE → MIA Jul 18, 07:40 UTCJul 18, 08:50 UTC1h 10m
2026-07-18 GTI8625 - Jul 18, 05:50 UTCJul 18, 06:00 UTC10m
2026-07-18 GTI8625 - Jul 18, 03:55 UTCJul 18, 04:10 UTC15m
2026-07-17 GTI8637 MIA → UIO Jul 17, 11:10 UTCJul 17, 23:05 UTC11h 55m
2026-07-16 GTI8912 - Jul 16, 00:15 UTCJul 16, 02:50 UTC2h 35m
2026-07-15 GTI8913 - Jul 15, 19:10 UTCJul 15, 21:10 UTC2h 0m
2026-07-13 GTI8913 - Jul 13, 23:40 UTCJul 14, 01:10 UTC1h 30m
2026-07-10 BWA792 - Jul 10, 23:45 UTCJul 11, 03:25 UTC3h 40m
2026-07-10 BWA793 - Jul 10, 14:05 UTCJul 10, 21:10 UTC7h 6m
2026-07-10 BWA8039 - Jul 10, 06:45 UTCJul 10, 11:35 UTC4h 50m
2026-07-08 GTI9004 - Jul 8, 11:40 UTCJul 9, 03:30 UTC15h 50m
2026-07-08 GTI8620 - Jul 8, 03:55 UTCJul 8, 04:30 UTC35m
2026-07-07 GTI8619 - Jul 7, 19:55 UTCJul 7, 23:05 UTC3h 10m
2026-07-07 GTI8617 - Jul 7, 08:15 UTCJul 7, 16:30 UTC8h 15m
2026-07-07 GTI8617 - Jul 7, 05:25 UTCJul 7, 05:40 UTC15m
2026-07-07 GTI8617 - Jul 7, 03:35 UTCJul 7, 03:55 UTC20m
2026-07-05 GTI8624 - Jul 5, 04:35 UTCJul 5, 05:00 UTC25m
2026-07-04 GTI8623 - Jul 4, 20:10 UTCJul 4, 20:35 UTC25m
2026-07-04 GTI8626 - Jul 4, 08:20 UTCJul 4, 16:25 UTC8h 5m
2026-07-04 GTI8625 - Jul 4, 06:10 UTCJul 4, 06:20 UTC10m
2026-07-04 GTI8625 - Jul 4, 04:10 UTCJul 4, 04:35 UTC25m
2026-07-02 GTI8621 SJU → MIA Jul 2, 09:15 UTCJul 2, 19:55 UTC10h 40m
2026-07-02 GTI8621 - Jul 2, 07:35 UTCJul 2, 07:45 UTC10m
2026-07-02 GTI8621 - Jul 2, 05:40 UTCJul 2, 06:00 UTC20m
2026-07-01 GTI8620 - Jul 1, 04:10 UTCJul 1, 04:45 UTC35m
2026-06-30 GTI8619 - Jun 30, 19:40 UTCJun 30, 20:00 UTC20m
2026-06-30 GTI8617 - Jun 30, 08:35 UTCJun 30, 16:45 UTC8h 10m
2026-06-30 GTI8617 - Jun 30, 06:05 UTCJun 30, 06:20 UTC15m
2026-06-30 GTI8617 - Jun 30, 04:10 UTCJun 30, 04:35 UTC25m
2026-06-28 GTI8624 - Jun 28, 03:55 UTCJun 28, 04:29 UTC35m
2026-06-27 GTI8623 ANC → NRT Jun 27, 19:45 UTCJun 27, 20:04 UTC20m
2026-06-27 GTI8626 - Jun 27, 08:29 UTCJun 27, 16:55 UTC8h 25m
2026-06-27 GTI8625 - Jun 27, 06:35 UTCJun 27, 06:44 UTC10m
2026-06-27 GTI8625 - Jun 27, 04:34 UTCJun 27, 04:59 UTC25m
2026-06-21 GTI8624 NRT → SFO Jun 21, 04:10 UTCJun 21, 04:39 UTC30m
2026-06-20 GTI8623 ANC → NRT Jun 20, 20:05 UTCJun 20, 20:25 UTC20m

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 N649GT page for operator, model, and routing details .

Mode-S A88752 frequently asked

What is Mode-S code A88752?
A88752 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N649GT.
Where is Mode-S A88752 registered?
Mode-S code A88752 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 A88752 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 19:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A88752, octal 52103522, decimal 11,044,690.
What flights does A88752 operate?
Mode-S A88752 has broadcast 20 distinct callsigns, including GTI8617, GTI8625, GTI8621, GTI8626, GTI9004.