sensors Mode-S transponder

A70812

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N552NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A70812
Octal
51604022
Decimal
10,946,578
Country
US
Tail
N552NN
Type
CRJ9
No current signal · last broadcast 23h ago
Flights observed
12
Distinct callsigns
6
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A70812.

Country allocation

The ICAO 24-bit address A70812 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
JIA5488 PSA Airlines 4 2026-04-13
JIA5099 - 3 2026-04-13
JIA5529 PSA Airlines 2 2026-04-13
JIA5534 - 1 2026-04-13
JIA5525 PSA Airlines 1 2026-04-12
JIA5093 - 1 2026-04-13

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-13 JIA5529 DCA → RDU Apr 13, 23:10 UTCApr 14, 00:31 UTC1h 21m
2026-04-13 JIA5529 DCA → RDU Apr 13, 21:15 UTCApr 13, 22:20 UTC1h 5m
2026-04-13 JIA5093 - Apr 13, 18:07 UTCApr 13, 19:03 UTC56m
2026-04-13 JIA5099 - Apr 13, 16:15 UTCApr 13, 16:45 UTC30m
2026-04-13 JIA5099 - Apr 13, 15:50 UTCApr 13, 16:45 UTC55m
2026-04-13 JIA5099 - Apr 13, 14:55 UTCApr 13, 16:15 UTC1h 20m
2026-04-13 JIA5488 MLB → CLT Apr 13, 12:20 UTCApr 13, 13:05 UTC45m
2026-04-13 JIA5488 MLB → CLT Apr 13, 11:55 UTCApr 13, 13:05 UTC1h 10m
2026-04-13 JIA5488 MLB → CLT Apr 13, 11:22 UTCApr 13, 13:35 UTC2h 13m
2026-04-13 JIA5488 MLB → CLT Apr 13, 11:01 UTCApr 13, 13:02 UTC2h 1m
2026-04-13 JIA5534 - Apr 13, 00:25 UTCApr 13, 02:40 UTC2h 15m
2026-04-12 JIA5525 DCA → PWM Apr 12, 17:15 UTCApr 12, 17:45 UTC30m

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 N552NN page for operator, model, and routing details .

Mode-S A70812 frequently asked

What is Mode-S code A70812?
A70812 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N552NN.
Where is Mode-S A70812 registered?
Mode-S code A70812 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 A70812 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 A70812, octal 51604022, decimal 10,946,578.
What flights does A70812 operate?
Mode-S A70812 has broadcast 6 distinct callsigns, including JIA5488, JIA5099, JIA5529, JIA5534, JIA5525.