sensors Mode-S transponder

ABE579

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N866DN · BOEING 737-900 · operated by UMB BANK NA TRUSTEE

Hex
ABE579
Octal
52762571
Decimal
11,265,401
Country
US
Tail
N866DN
Type
B739
No current signal · last broadcast 1d ago
Flights observed
7
Distinct callsigns
5
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ABE579.

Country allocation

The ICAO 24-bit address ABE579 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 5 distinct

Callsign Airline Flights Last seen
DAL2498 - 2 2026-04-13
DAL2380 Delta Air Lines 2 2026-04-13
DAL2365 Delta Air Lines 1 2026-04-13
DAL1752 - 1 2026-04-12
DAL1029 - 1 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-13 DAL1029 JFK → ATL Apr 13, 20:35 UTCApr 13, 22:25 UTC1h 50m
2026-04-13 DAL2380 MSY → LGA Apr 13, 18:25 UTCApr 13, 18:45 UTC20m
2026-04-13 DAL2380 MSY → LGA Apr 13, 16:30 UTCApr 13, 18:10 UTC1h 40m
2026-04-13 DAL2365 MSP → SFO Apr 13, 12:45 UTCApr 13, 14:40 UTC1h 55m
2026-04-13 DAL2498 - Apr 13, 00:20 UTCApr 13, 00:55 UTC35m
2026-04-12 DAL2498 - Apr 12, 23:55 UTCApr 13, 00:55 UTC1h 0m
2026-04-12 DAL1752 - Apr 12, 18:50 UTCApr 12, 20:15 UTC1h 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 N866DN page for operator, model, and routing details .

Mode-S ABE579 frequently asked

What is Mode-S code ABE579?
ABE579 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N866DN.
Where is Mode-S ABE579 registered?
Mode-S code ABE579 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 ABE579 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABE579, octal 52762571, decimal 11,265,401.
What flights does ABE579 operate?
Mode-S ABE579 has broadcast 5 distinct callsigns, including DAL2498, DAL2380, DAL2365, DAL1752, DAL1029.