Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ABB6DC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N854GT · BOEING 747-8 · operated by ATLAS AIR INC

Hex
ABB6DC
Octal
52733334
Decimal
11,253,468
Country
US
Tail
N854GT
Type
B748
No current signal · last broadcast Jul 26, 13:30 UTC
Flights observed
166
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 13:30 UTC

Last known position

Most recent position reported by Mode-S ABB6DC.

Country allocation

The ICAO 24-bit address ABB6DC 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
GTI804 Atlas Air 54 2026-07-25
GTI803 - 29 2026-07-05
GTI802 Atlas Air 24 2026-06-23
GTI801 Atlas Air 12 2026-07-25
GTI8994 Atlas Air 6 2026-07-23
GTI8052 - 5 2026-07-12
GTI8292 - 4 2026-07-10
GTI512 - 4 2026-07-17
GTI8993 Atlas Air 3 2026-07-22
GTI8560 - 3 2026-07-18
GTI8414 - 3 2026-07-15
GTI9231 - 2 2026-07-03
GTI8559 - 2 2026-07-17
GTI8413 - 2 2026-07-14
GTI8331 - 2 2026-06-30
GTI8318 Atlas Air 2 2026-07-20
GTI8317 Atlas Air 2 2026-07-19
GTI825 - 2 2026-07-08
GTI8030 - 2 2026-07-13
GTI8995 Atlas Air 1 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 GTI801 TLV → LGG Jul 25, 23:50 UTCJul 26, 13:30 UTC13h 41m
2026-07-25 GTI804 ORD → JFK Jul 25, 13:00 UTCJul 25, 18:05 UTC5h 5m
2026-07-24 GTI804 ORD → JFK Jul 24, 21:00 UTCJul 25, 10:50 UTC13h 50m
2026-07-23 GTI8995 HHN → PSM Jul 23, 17:55 UTCJul 24, 07:25 UTC13h 30m
2026-07-23 GTI8994 IND → HHN Jul 23, 13:30 UTCJul 23, 15:10 UTC1h 40m
2026-07-23 GTI8994 IND → HHN Jul 23, 05:15 UTCJul 23, 10:15 UTC5h 0m
2026-07-22 GTI8994 IND → HHN Jul 22, 19:20 UTCJul 23, 03:05 UTC7h 45m
2026-07-22 GTI8994 - Jul 22, 18:35 UTCJul 22, 18:50 UTC15m
2026-07-22 GTI8993 ORD → ICN Jul 22, 13:45 UTCJul 22, 15:45 UTC2h 0m
2026-07-21 GTI8993 ORD → ICN Jul 21, 21:00 UTCJul 22, 11:40 UTC14h 40m
2026-07-20 GTI8318 ANC → ORD Jul 20, 13:50 UTCJul 20, 19:10 UTC5h 20m
2026-07-20 GTI8318 ANC → ORD Jul 20, 03:30 UTCJul 20, 11:55 UTC8h 25m
2026-07-19 GTI8317 DOV → ICN Jul 19, 21:15 UTCJul 19, 23:15 UTC2h 0m
2026-07-19 GTI8317 DOV → ICN Jul 19, 04:00 UTCJul 19, 17:15 UTC13h 15m
2026-07-18 GTI8560 ANC → ORD Jul 18, 19:05 UTCJul 19, 00:25 UTC5h 20m
2026-07-18 GTI8560 - Jul 18, 09:50 UTCJul 18, 17:15 UTC7h 25m
2026-07-18 GTI8560 - Jul 18, 06:00 UTCJul 18, 06:20 UTC20m
2026-07-17 GTI8559 - Jul 17, 23:00 UTCJul 17, 23:10 UTC10m
2026-07-17 GTI8559 - Jul 17, 16:49 UTCJul 17, 17:30 UTC40m
2026-07-17 GTI512 - Jul 17, 01:35 UTCJul 17, 14:24 UTC12h 50m
2026-07-17 GTI512 - Jul 17, 00:04 UTCJul 17, 00:14 UTC10m
2026-07-16 GTI512 - Jul 16, 13:45 UTCJul 16, 18:55 UTC5h 10m
2026-07-15 GTI512 ICN → ANC Jul 15, 22:10 UTCJul 16, 11:45 UTC13h 35m
2026-07-15 GTI8414 - Jul 15, 19:00 UTCJul 15, 19:25 UTC25m
2026-07-15 GTI8414 - Jul 15, 09:00 UTCJul 15, 18:30 UTC9h 30m
2026-07-14 GTI8414 - Jul 14, 21:40 UTCJul 15, 06:10 UTC8h 29m
2026-07-14 GTI8413 - Jul 14, 05:15 UTCJul 14, 17:30 UTC12h 15m
2026-07-13 GTI8413 - Jul 13, 18:00 UTCJul 14, 02:35 UTC8h 35m
2026-07-13 GTI8030 - Jul 13, 00:10 UTCJul 13, 04:50 UTC4h 40m
2026-07-12 GTI8030 - Jul 12, 21:20 UTCJul 12, 21:30 UTC10m
2026-07-12 GTI8052 - Jul 12, 14:40 UTCJul 12, 17:35 UTC2h 55m
2026-07-12 GTI8052 - Jul 12, 04:15 UTCJul 12, 12:01 UTC7h 45m
2026-07-11 GTI8052 - Jul 11, 17:40 UTCJul 12, 00:55 UTC7h 15m
2026-07-11 GTI8052 - Jul 11, 07:35 UTCJul 11, 15:00 UTC7h 25m
2026-07-11 GTI8052 - Jul 11, 05:25 UTCJul 11, 05:40 UTC15m
2026-07-10 GTI8292 - Jul 10, 10:40 UTCJul 10, 19:20 UTC8h 40m
2026-07-10 GTI8292 - Jul 10, 02:10 UTCJul 10, 06:05 UTC3h 55m
2026-07-09 GTI8292 - Jul 9, 14:00 UTCJul 9, 23:05 UTC9h 5m
2026-07-09 GTI8292 - Jul 9, 08:15 UTCJul 9, 10:20 UTC2h 5m
2026-07-08 GTI825 - Jul 8, 21:40 UTCJul 9, 05:05 UTC7h 25m
2026-07-08 GTI825 HKG → ANC Jul 8, 10:05 UTCJul 8, 19:45 UTC9h 40m
2026-07-08 GTI7582 ICN → HKG Jul 8, 03:20 UTCJul 8, 06:35 UTC3h 15m
2026-07-06 GTI801 ORD → ICN Jul 6, 18:35 UTCJul 7, 07:40 UTC13h 5m
2026-07-06 GTI804 ANC → ORD Jul 6, 10:45 UTCJul 6, 16:00 UTC5h 15m
2026-07-05 GTI804 ICN → ANC Jul 5, 18:00 UTCJul 6, 08:55 UTC14h 55m
2026-07-05 GTI803 ORD → ICN Jul 5, 03:10 UTCJul 5, 16:05 UTC12h 55m
2026-07-04 GTI804 ANC → ORD Jul 4, 17:45 UTCJul 4, 23:20 UTC5h 35m
2026-07-04 GTI804 - Jul 4, 00:20 UTCJul 4, 15:15 UTC14h 55m
2026-07-03 GTI9231 - Jul 3, 21:25 UTCJul 3, 21:50 UTC25m
2026-07-03 GTI9231 - Jul 3, 10:30 UTCJul 3, 20:45 UTC10h 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 N854GT page for operator, model, and routing details .

Mode-S ABB6DC frequently asked

What is Mode-S code ABB6DC?
ABB6DC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N854GT.
Where is Mode-S ABB6DC registered?
Mode-S code ABB6DC 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 ABB6DC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB6DC, octal 52733334, decimal 11,253,468.
What flights does ABB6DC operate?
Mode-S ABB6DC has broadcast 20 distinct callsigns, including GTI804, GTI803, GTI802, GTI801, GTI8994.