sensors Mode-S transponder

AB6020

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N832DN · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
AB6020
Octal
52660040
Decimal
11,231,264
Country
US
Tail
N832DN
Type
B739
Broadcasting now · callsign DAL933 · 36,000 ft
Flights observed
11
Distinct callsigns
6
Country
US
Last broadcast
1d ago

Current position

AB6020 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB6020 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 6 distinct

Callsign Airline Flights Last seen
DAL2552 - 3 2026-04-13
DAL3146 Delta Air Lines 2 2026-04-13
DAL2755 - 2 2026-04-13
DAL2353 Delta Air Lines 2 2026-04-13
DAL3132 - 1 2026-04-13
DAL1048 - 1 2026-04-12

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-13 DAL3146 ATL → MSY Apr 13, 22:40 UTCApr 13, 23:40 UTC1h 0m
2026-04-13 DAL3146 ATL → MSY Apr 13, 19:55 UTCApr 13, 20:10 UTC15m
2026-04-13 DAL2755 ORF → ATL Apr 13, 17:05 UTCApr 13, 18:20 UTC1h 15m
2026-04-13 DAL2755 - Apr 13, 14:35 UTCApr 13, 15:45 UTC1h 10m
2026-04-13 DAL2353 EWR → ATL Apr 13, 11:55 UTCApr 13, 12:05 UTC10m
2026-04-13 DAL2353 EWR → ATL Apr 13, 10:12 UTCApr 13, 12:07 UTC1h 55m
2026-04-13 DAL2552 - Apr 13, 04:20 UTCApr 13, 04:55 UTC35m
2026-04-13 DAL2552 - Apr 13, 03:55 UTCApr 13, 04:55 UTC1h 0m
2026-04-13 DAL2552 - Apr 13, 03:11 UTCApr 13, 04:52 UTC1h 41m
2026-04-13 DAL3132 - Apr 13, 00:20 UTCApr 13, 01:15 UTC55m
2026-04-12 DAL1048 - Apr 12, 18:27 UTCApr 12, 20:25 UTC1h 58m

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 N832DN page for operator, model, and routing details .

Mode-S AB6020 frequently asked

What is Mode-S code AB6020?
AB6020 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N832DN.
Where is Mode-S AB6020 registered?
Mode-S code AB6020 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 AB6020 broadcasting right now?
Yes. Mode-S AB6020 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB6020, octal 52660040, decimal 11,231,264.
What flights does AB6020 operate?
Mode-S AB6020 has broadcast 6 distinct callsigns, including DAL2552, DAL3146, DAL2755, DAL2353, DAL3132.