sensors Mode-S transponder

AB113E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N812ER · CESSNA 172 Skyhawk · operated by EMBRY-RIDDLE AERONAUTICAL UNIVERSITY INC

Hex
AB113E
Octal
52610476
Decimal
11,211,070
Country
US
Tail
N812ER
Type
C172
No current signal · last broadcast 1d ago
Flights observed
8
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AB113E.

Country allocation

The ICAO 24-bit address AB113E 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
ERU812 - 8 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 ERU812 - Apr 13, 20:55 UTCApr 13, 22:55 UTC2h 0m
2026-04-13 ERU812 - Apr 13, 19:35 UTCApr 13, 19:50 UTC15m
2026-04-13 ERU812 - Apr 13, 16:15 UTCApr 13, 17:45 UTC1h 30m
2026-04-13 ERU812 - Apr 13, 15:55 UTCApr 13, 16:15 UTC20m
2026-04-13 ERU812 - Apr 13, 14:20 UTCApr 13, 14:35 UTC15m
2026-04-13 ERU812 - Apr 13, 13:20 UTCApr 13, 13:30 UTC10m
2026-04-13 ERU812 - Apr 13, 00:55 UTCApr 13, 02:20 UTC1h 25m
2026-04-12 ERU812 - Apr 12, 18:50 UTCApr 12, 20:05 UTC1h 15m

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 N812ER page for operator, model, and routing details .

Mode-S AB113E frequently asked

What is Mode-S code AB113E?
AB113E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N812ER.
Where is Mode-S AB113E registered?
Mode-S code AB113E 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 AB113E 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 AB113E, octal 52610476, decimal 11,211,070.
What flights does AB113E operate?
Mode-S AB113E has broadcast 1 distinct callsign, including ERU812.