sensors Mode-S transponder

AB52BE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N829ER · CESSNA 172 Skyhawk · operated by EMBRY RIDDLE AERONAUTICAL UNIVERSITY

Hex
AB52BE
Octal
52651276
Decimal
11,227,838
Country
US
Tail
N829ER
Type
C172
No current signal · last broadcast 23h ago
Flights observed
8
Distinct callsigns
1
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S AB52BE.

Country allocation

The ICAO 24-bit address AB52BE 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 1 distinct

Callsign Airline Flights Last seen
ERU829 - 8 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 ERU829 - Apr 13, 23:20 UTCApr 13, 23:40 UTC20m
2026-04-13 ERU829 - Apr 13, 20:35 UTCApr 13, 21:25 UTC50m
2026-04-13 ERU829 - Apr 13, 19:05 UTCApr 13, 19:20 UTC15m
2026-04-13 ERU829 - Apr 13, 17:40 UTCApr 13, 18:30 UTC50m
2026-04-13 ERU829 - Apr 13, 14:45 UTCApr 13, 14:55 UTC10m
2026-04-13 ERU829 - Apr 13, 12:55 UTCApr 13, 13:45 UTC50m
2026-04-13 ERU829 - Apr 13, 00:20 UTCApr 13, 02:40 UTC2h 20m
2026-04-12 ERU829 - Apr 12, 23:55 UTCApr 13, 02:40 UTC2h 45m

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 N829ER page for operator, model, and routing details .

Mode-S AB52BE frequently asked

What is Mode-S code AB52BE?
AB52BE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N829ER.
Where is Mode-S AB52BE registered?
Mode-S code AB52BE 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 AB52BE broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB52BE, octal 52651276, decimal 11,227,838.
What flights does AB52BE operate?
Mode-S AB52BE has broadcast 1 distinct callsign, including ERU829.