Apparatus

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sensors Mode-S transponder

AA90A0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N780BA · BOEING 747-400LCF Dreamlifter · operated by BOEING AIRCRAFT HOLDING CO

Hex
AA90A0
Octal
52510240
Decimal
11,178,144
Country
US
Tail
N780BA
Type
BLCF
Broadcasting now · callsign GTI4326 · 39,000 ft
Flights observed
76
Distinct callsigns
11
Country
US
Last broadcast
5h ago

Current position

AA90A0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AA90A0 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 11 distinct

Callsign Airline Flights Last seen
GTI4312 - 20 2026-07-09
GTI4531 - 14 2026-07-13
GTI4326 Atlas Air 11 2026-07-18
GTI4231 - 9 2026-06-28
GTI4536 Atlas Air 8 2026-06-13
GTI4546 - 3 2026-07-13
GTI4431 - 3 2026-07-13
GTI9754 Atlas Air 2 2026-06-23
GTI8531 Atlas Air 2 2026-06-05
GTI8312 Atlas Air 2 2026-06-04
GTI4316 Atlas Air 2 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 GTI4326 CHS → TAR Jul 18, 02:25 UTCJul 18, 04:10 UTC1h 46m
2026-07-13 GTI4431 - Jul 13, 23:50 UTCJul 14, 02:20 UTC2h 30m
2026-07-13 GTI4546 - Jul 13, 18:30 UTCJul 13, 20:40 UTC2h 10m
2026-07-13 GTI4531 - Jul 13, 06:25 UTCJul 13, 13:10 UTC6h 45m
2026-07-12 GTI4531 - Jul 12, 04:40 UTCJul 12, 11:15 UTC6h 35m
2026-07-09 GTI4312 - Jul 9, 15:50 UTCJul 9, 22:40 UTC6h 50m
2026-07-09 GTI4312 - Jul 9, 06:20 UTCJul 9, 13:20 UTC7h 0m
2026-07-01 GTI4531 - Jul 1, 13:10 UTCJul 1, 20:20 UTC7h 10m
2026-07-01 GTI4531 - Jul 1, 04:35 UTCJul 1, 11:10 UTC6h 35m
2026-06-30 GTI4312 - Jun 30, 16:05 UTCJun 30, 23:10 UTC7h 5m
2026-06-30 GTI4312 - Jun 30, 06:30 UTCJun 30, 13:25 UTC6h 55m
2026-06-28 GTI4231 - Jun 28, 06:15 UTCJun 28, 16:45 UTC10h 30m
2026-06-27 GTI4326 - Jun 27, 02:29 UTCJun 27, 11:39 UTC9h 10m
2026-06-26 GTI4431 IAB → CHS Jun 26, 00:05 UTCJun 26, 02:05 UTC2h 0m
2026-06-25 GTI4546 ANC → LAX Jun 25, 18:55 UTCJun 25, 21:10 UTC2h 15m
2026-06-23 GTI9754 CHS → MIA Jun 23, 21:10 UTCJun 23, 22:19 UTC1h 10m
2026-06-19 GTI9754 CHS → MIA Jun 19, 06:35 UTCJun 19, 07:45 UTC1h 10m
2026-06-18 GTI4531 ANC → CHS Jun 18, 19:55 UTCJun 19, 02:19 UTC6h 24m
2026-06-18 GTI4531 ANC → CHS Jun 18, 11:25 UTCJun 18, 18:00 UTC6h 35m
2026-06-17 GTI4312 - Jun 17, 23:55 UTCJun 18, 07:00 UTC7h 5m
2026-06-17 GTI4312 - Jun 17, 14:25 UTCJun 17, 21:40 UTC7h 15m
2026-06-16 GTI4431 IAB → CHS Jun 16, 03:55 UTCJun 16, 05:50 UTC1h 55m
2026-06-15 GTI4546 ANC → LAX Jun 15, 15:55 UTCJun 15, 18:29 UTC2h 35m
2026-06-13 GTI4536 ANC → CHS Jun 13, 12:55 UTCJun 13, 19:20 UTC6h 25m
2026-06-13 GTI4536 ANC → CHS Jun 13, 04:20 UTCJun 13, 10:50 UTC6h 30m
2026-06-12 GTI4316 PAE → NGO Jun 12, 15:45 UTCJun 12, 22:50 UTC7h 5m
2026-06-12 GTI4316 PAE → NGO Jun 12, 06:15 UTCJun 12, 13:05 UTC6h 50m
2026-06-10 GTI4531 ANC → CHS Jun 10, 14:15 UTCJun 10, 20:45 UTC6h 30m
2026-06-10 GTI4531 ANC → CHS Jun 10, 05:30 UTCJun 10, 11:40 UTC6h 10m
2026-06-09 GTI4312 ANC → NGO Jun 9, 17:40 UTCJun 10, 01:20 UTC7h 40m
2026-06-09 GTI4312 ANC → NGO Jun 9, 06:15 UTCJun 9, 13:15 UTC7h 0m
2026-06-05 GTI8531 ORD → ICN Jun 5, 20:15 UTCJun 6, 02:50 UTC6h 35m
2026-06-05 GTI8531 ORD → ICN Jun 5, 10:30 UTCJun 5, 17:10 UTC6h 40m
2026-06-04 GTI8312 DOV → RMS Jun 4, 15:55 UTCJun 4, 22:55 UTC7h 0m
2026-06-04 GTI8312 DOV → RMS Jun 4, 06:40 UTCJun 4, 13:40 UTC7h 0m
2026-06-03 GTI4231 TAR → CHS Jun 3, 07:15 UTCJun 3, 17:40 UTC10h 25m
2026-06-02 GTI4326 CHS → TAR Jun 2, 03:30 UTCJun 2, 11:55 UTC8h 25m
2026-05-31 GTI4531 ANC → CHS May 31, 15:20 UTCMay 31, 22:15 UTC6h 55m
2026-05-31 GTI4531 ANC → CHS May 31, 10:50 UTCMay 31, 12:45 UTC1h 55m
2026-05-30 GTI4312 ANC → NGO May 30, 17:45 UTCMay 31, 01:11 UTC7h 26m
2026-05-30 GTI4312 ANC → NGO May 30, 08:40 UTCMay 30, 15:25 UTC6h 45m
2026-05-29 GTI4231 TAR → CHS May 29, 09:10 UTCMay 29, 19:20 UTC10h 10m
2026-05-26 GTI4326 CHS → TAR May 26, 04:15 UTCMay 26, 13:50 UTC9h 35m
2026-05-25 GTI4531 ANC → CHS May 25, 16:25 UTCMay 25, 23:04 UTC6h 40m
2026-05-25 GTI4531 ANC → CHS May 25, 07:35 UTCMay 25, 14:30 UTC6h 55m
2026-05-19 GTI4312 ANC → NGO May 19, 04:40 UTCMay 19, 12:05 UTC7h 25m
2026-05-18 GTI4312 ANC → NGO May 18, 18:50 UTCMay 19, 02:10 UTC7h 20m
2026-05-15 GTI4231 TAR → CHS May 15, 08:05 UTCMay 15, 18:45 UTC10h 39m
2026-05-14 GTI4326 CHS → TAR May 14, 01:55 UTCMay 14, 11:01 UTC9h 5m
2026-05-12 GTI4531 ANC → CHS May 12, 13:51 UTCMay 12, 20:15 UTC6h 25m

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 N780BA page for operator, model, and routing details .

Mode-S AA90A0 frequently asked

What is Mode-S code AA90A0?
AA90A0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N780BA.
Where is Mode-S AA90A0 registered?
Mode-S code AA90A0 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 AA90A0 broadcasting right now?
Yes. Mode-S AA90A0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA90A0, octal 52510240, decimal 11,178,144.
What flights does AA90A0 operate?
Mode-S AA90A0 has broadcast 11 distinct callsigns, including GTI4312, GTI4531, GTI4326, GTI4231, GTI4536.