Apparatus

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sensors Mode-S transponder

A8699A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N641GT · BOEING 767-300 · operated by ATLAS AIR INC

Hex
A8699A
Octal
52064632
Decimal
11,037,082
Country
US
Tail
N641GT
Type
B763
No current signal · last broadcast 23d ago
Flights observed
47
Distinct callsigns
17
Country
US
Last broadcast
23d ago

Last known position

Most recent position reported by Mode-S A8699A.

Country allocation

The ICAO 24-bit address A8699A 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 17 distinct

Callsign Airline Flights Last seen
CMB546 - 11 2026-04-17
GTI8922 Atlas Air 5 2026-04-18
GTI8820 Atlas Air 5 2026-04-14
GTI8353 Atlas Air 4 2026-04-27
GTI9906 Atlas Air 3 2026-05-05
GTI8376 Atlas Air 3 2026-05-06
GTI8151 Atlas Air 3 2026-04-23
GTI8220 Atlas Air 2 2026-04-18
GTI8164 Atlas Air 2 2026-04-30
CMB554 - 2 2026-05-01
GTI9857 Atlas Air 1 2026-04-19
GTI9850 Atlas Air 1 2026-05-02
GTI9846 Atlas Air 1 2026-04-24
GTI9845 Atlas Air 1 2026-04-22
GTI8354 Atlas Air 1 2026-04-28
GTI8163 Atlas Air 1 2026-04-28
CMB556 - 1 2026-04-19

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-05-06 GTI8376 ORD → CHS May 6, 05:50 UTCMay 6, 14:45 UTC8h 55m
2026-05-05 GTI8376 ORD → CHS May 5, 19:20 UTCMay 6, 02:15 UTC6h 55m
2026-05-05 GTI8376 ORD → CHS May 5, 18:05 UTCMay 5, 18:20 UTC15m
2026-05-05 GTI9906 WRI → ORD May 5, 14:15 UTCMay 5, 14:40 UTC25m
2026-05-05 GTI9906 WRI → ORD May 5, 03:55 UTCMay 5, 05:00 UTC1h 5m
2026-05-03 GTI9906 WRI → ORD May 3, 17:29 UTCMay 4, 00:15 UTC6h 45m
2026-05-02 GTI9850 KUN → CVG May 2, 08:55 UTCMay 2, 18:30 UTC9h 35m
2026-05-01 CMB554 POZ → KUN May 1, 14:40 UTCMay 1, 15:35 UTC55m
2026-05-01 CMB554 - May 1, 04:20 UTCMay 1, 11:35 UTC7h 15m
2026-04-30 GTI8164 BWI → HHN Apr 30, 22:20 UTCMay 1, 01:30 UTC3h 10m
2026-04-30 GTI8164 BWI → HHN Apr 30, 11:45 UTCApr 30, 14:15 UTC2h 30m
2026-04-28 GTI8163 - Apr 28, 20:30 UTCApr 29, 00:15 UTC3h 45m
2026-04-28 GTI8354 YWG → LGG Apr 28, 03:40 UTCApr 28, 17:20 UTC13h 40m
2026-04-27 GTI8353 SEA → ANC Apr 27, 07:10 UTCApr 27, 07:25 UTC15m
2026-04-27 GTI8353 SEA → ANC Apr 27, 05:10 UTCApr 27, 06:25 UTC1h 15m
2026-04-26 GTI8353 SEA → ANC Apr 26, 16:55 UTCApr 26, 21:20 UTC4h 25m
2026-04-25 GTI8353 SEA → ANC Apr 25, 22:30 UTCApr 26, 02:55 UTC4h 25m
2026-04-24 GTI9846 IAH → CVG Apr 24, 01:15 UTCApr 24, 14:55 UTC13h 40m
2026-04-23 GTI8151 LED → JFK Apr 23, 05:25 UTCApr 23, 05:40 UTC15m
2026-04-23 GTI8151 LED → JFK Apr 23, 03:25 UTCApr 23, 03:50 UTC25m
2026-04-22 GTI8151 LED → JFK Apr 22, 16:35 UTCApr 23, 00:00 UTC7h 25m
2026-04-22 GTI9845 KEF → ICN Apr 22, 02:40 UTCApr 22, 09:30 UTC6h 50m
2026-04-19 GTI9857 RMS → CVG Apr 19, 15:55 UTCApr 20, 01:05 UTC9h 10m
2026-04-19 CMB556 - Apr 19, 04:35 UTCApr 19, 11:45 UTC7h 10m
2026-04-18 GTI8220 BWI → RMS Apr 18, 23:10 UTCApr 19, 00:50 UTC1h 40m
2026-04-18 GTI8220 BWI → RMS Apr 18, 17:30 UTCApr 18, 18:30 UTC1h 0m
2026-04-18 GTI8922 CLT → MXP Apr 18, 00:00 UTCApr 18, 01:20 UTC1h 20m
2026-04-17 GTI8922 CLT → MXP Apr 17, 19:25 UTCApr 17, 20:30 UTC1h 5m
2026-04-17 GTI8922 CLT → MXP Apr 17, 19:10 UTCApr 17, 19:20 UTC10m
2026-04-17 GTI8922 CLT → MXP Apr 17, 11:20 UTCApr 17, 12:55 UTC1h 35m
2026-04-17 GTI8922 CLT → MXP Apr 17, 10:50 UTCApr 17, 11:15 UTC25m
2026-04-17 CMB546 - Apr 17, 05:20 UTCApr 17, 05:40 UTC20m
2026-04-17 CMB546 - Apr 17, 03:30 UTCApr 17, 05:15 UTC1h 46m
2026-04-16 CMB546 - Apr 16, 23:20 UTCApr 17, 00:40 UTC1h 20m
2026-04-16 CMB546 - Apr 16, 22:30 UTCApr 16, 23:10 UTC40m
2026-04-15 CMB546 - Apr 15, 18:50 UTCApr 15, 19:00 UTC10m
2026-04-15 CMB546 - Apr 15, 15:05 UTCApr 15, 16:55 UTC1h 50m
2026-04-15 CMB546 - Apr 15, 14:45 UTCApr 15, 14:55 UTC10m
2026-04-15 CMB546 - Apr 15, 09:00 UTCApr 15, 10:55 UTC1h 55m
2026-04-15 CMB546 - Apr 15, 07:25 UTCApr 15, 08:55 UTC1h 30m
2026-04-15 CMB546 - Apr 15, 00:55 UTCApr 15, 01:30 UTC35m
2026-04-14 CMB546 - Apr 14, 23:45 UTCApr 15, 00:50 UTC1h 5m
2026-04-14 GTI8820 MAO → VCP Apr 14, 16:50 UTCApr 14, 17:00 UTC10m
2026-04-14 GTI8820 MAO → VCP Apr 14, 15:55 UTCApr 14, 16:45 UTC50m
2026-04-14 GTI8820 MAO → VCP Apr 14, 12:00 UTCApr 14, 12:15 UTC15m
2026-04-14 GTI8820 MAO → VCP Apr 14, 08:10 UTCApr 14, 08:35 UTC25m
2026-04-13 GTI8820 - Apr 13, 23:00 UTCApr 13, 23:25 UTC25m

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 N641GT page for operator, model, and routing details .

Mode-S A8699A frequently asked

What is Mode-S code A8699A?
A8699A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N641GT.
Where is Mode-S A8699A registered?
Mode-S code A8699A 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 A8699A broadcasting right now?
No active broadcast right now. Last signal was 23d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8699A, octal 52064632, decimal 11,037,082.
What flights does A8699A operate?
Mode-S A8699A has broadcast 17 distinct callsigns, including CMB546, GTI8922, GTI8820, GTI8353, GTI9906.