sensors Mode-S transponder

ABE212

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N865GT · operated by UMB BANK NA TRUSTEE

Hex
ABE212
Octal
52761022
Decimal
11,264,530
Country
US
Tail
N865GT
Type
B748
No current signal · last broadcast 12h ago
Flights observed
8
Distinct callsigns
3
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S ABE212.

Country allocation

The ICAO 24-bit address ABE212 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 3 distinct

Callsign Airline Flights Last seen
GTI571 Atlas Air 4 2026-04-14
GTI584 - 3 2026-04-13
GTI583 - 1 2026-04-12

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 GTI571 ZAZ → SGN Apr 14, 10:05 UTCApr 14, 10:25 UTC20m
2026-04-14 GTI571 ZAZ → SGN Apr 14, 08:10 UTCApr 14, 08:55 UTC45m
2026-04-14 GTI571 ZAZ → SGN Apr 14, 05:15 UTCApr 14, 05:25 UTC10m
2026-04-13 GTI571 - Apr 13, 22:50 UTCApr 13, 23:45 UTC55m
2026-04-13 GTI584 - Apr 13, 16:45 UTCApr 13, 19:55 UTC3h 10m
2026-04-13 GTI584 - Apr 13, 15:50 UTCApr 13, 19:45 UTC3h 55m
2026-04-13 GTI584 - Apr 13, 14:40 UTCApr 13, 15:50 UTC1h 10m
2026-04-12 GTI583 - Apr 12, 17:15 UTCApr 12, 20:15 UTC3h 0m

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 N865GT page for operator, model, and routing details .

Mode-S ABE212 frequently asked

What is Mode-S code ABE212?
ABE212 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N865GT.
Where is Mode-S ABE212 registered?
Mode-S code ABE212 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 ABE212 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABE212, octal 52761022, decimal 11,264,530.
What flights does ABE212 operate?
Mode-S ABE212 has broadcast 3 distinct callsigns, including GTI571, GTI584, GTI583.