sensors Mode-S transponder

A70A87

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N55292 · CESSNA 172 Skyhawk · operated by AEROSIM ACADEMY INC

Hex
A70A87
Octal
51605207
Decimal
10,947,207
Country
US
Tail
N55292
Type
C172
Broadcasting now · callsign LFA333 · 3,375 ft
Flights observed
8
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Current position

A70A87 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A70A87 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
LFA333 - 8 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 LFA333 SFB → SFB Apr 13, 21:55 UTCApr 13, 23:20 UTC1h 25m
2026-04-13 LFA333 - Apr 13, 19:50 UTCApr 13, 20:40 UTC50m
2026-04-13 LFA333 - Apr 13, 19:00 UTCApr 13, 20:10 UTC1h 10m
2026-04-13 LFA333 - Apr 13, 16:15 UTCApr 13, 17:40 UTC1h 25m
2026-04-13 LFA333 - Apr 13, 15:50 UTCApr 13, 17:40 UTC1h 50m
2026-04-13 LFA333 - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 LFA333 - Apr 13, 13:20 UTCApr 13, 14:30 UTC1h 10m
2026-04-12 LFA333 - Apr 12, 19:55 UTCApr 12, 20:15 UTC20m

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 N55292 page for operator, model, and routing details .

Mode-S A70A87 frequently asked

What is Mode-S code A70A87?
A70A87 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N55292.
Where is Mode-S A70A87 registered?
Mode-S code A70A87 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 A70A87 broadcasting right now?
Yes. Mode-S A70A87 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A70A87, octal 51605207, decimal 10,947,207.
What flights does A70A87 operate?
Mode-S A70A87 has broadcast 1 distinct callsign, including LFA333.