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sensors Mode-S transponder

A8DD31

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N670RB · AIR TRACTOR AT-802 · operated by OVER THE TOP AVIATION INC

Hex
A8DD31
Octal
52156461
Decimal
11,066,673
Country
US
Tail
N670RB
Type
AT8T
No current signal · last broadcast Jul 24, 18:45 UTC
Flights observed
102
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 18:45 UTC

Last known position

Most recent position reported by Mode-S A8DD31.

Country allocation

The ICAO 24-bit address A8DD31 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
N670RB - 99 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N670RB - Jul 24, 17:25 UTCJul 24, 18:45 UTC1h 20m
2026-07-24 N670RB - Jul 24, 11:30 UTCJul 24, 12:55 UTC1h 25m
2026-07-23 N670RB - Jul 23, 11:15 UTCJul 23, 12:05 UTC50m
2026-07-22 N670RB - Jul 22, 13:00 UTCJul 22, 13:25 UTC25m
2026-07-19 N670RB - Jul 19, 15:10 UTCJul 19, 15:55 UTC45m
2026-07-18 N670RB - Jul 18, 16:15 UTCJul 18, 17:15 UTC1h 0m
2026-07-18 N670RB - Jul 18, 13:55 UTCJul 18, 15:30 UTC1h 35m
2026-07-18 N670RB - Jul 18, 12:55 UTCJul 18, 13:15 UTC20m
2026-07-18 N670RB - Jul 18, 11:10 UTCJul 18, 12:05 UTC55m
2026-07-17 N670RB - Jul 17, 19:49 UTCJul 17, 20:29 UTC40m
2026-07-17 N670RB - Jul 17, 16:29 UTCJul 17, 19:00 UTC2h 30m
2026-07-17 N670RB - Jul 17, 11:04 UTCJul 17, 15:05 UTC4h 0m
2026-07-16 N670RB - Jul 16, 15:55 UTCJul 16, 20:15 UTC4h 20m
2026-07-13 N670RB - Jul 13, 17:15 UTCJul 13, 18:30 UTC1h 15m
2026-07-13 N670RB - Jul 13, 13:15 UTCJul 13, 14:30 UTC1h 15m
2026-07-12 N670RB - Jul 12, 13:25 UTCJul 12, 14:20 UTC55m
2026-07-12 N670RB - Jul 12, 12:01 UTCJul 12, 12:50 UTC50m
2026-07-11 N670RB - Jul 11, 13:50 UTCJul 11, 17:00 UTC3h 10m
2026-07-11 N670RB - Jul 11, 11:40 UTCJul 11, 12:35 UTC55m
2026-07-10 N670RB - Jul 10, 18:15 UTCJul 10, 20:00 UTC1h 45m
2026-07-09 N670RB - Jul 9, 16:40 UTCJul 9, 18:15 UTC1h 35m
2026-07-09 N670RB - Jul 9, 14:05 UTCJul 9, 14:25 UTC20m
2026-07-09 N670RB - Jul 9, 11:05 UTCJul 9, 13:15 UTC2h 10m
2026-07-08 N670RB - Jul 8, 19:10 UTCJul 8, 19:25 UTC15m
2026-07-08 N670RB - Jul 8, 11:05 UTCJul 8, 11:40 UTC35m
2026-07-07 N670RB - Jul 7, 10:55 UTCJul 7, 14:55 UTC4h 0m
2026-07-06 N670RB - Jul 6, 16:30 UTCJul 6, 17:30 UTC1h 0m
2026-07-06 - - Jul 6, 11:05 UTCJul 6, 11:25 UTC20m
2026-07-03 N670RB - Jul 3, 16:15 UTCJul 3, 18:25 UTC2h 10m
2026-07-03 N670RB - Jul 3, 11:30 UTCJul 3, 15:20 UTC3h 50m
2026-07-02 N670RB - Jul 2, 12:20 UTCJul 2, 13:40 UTC1h 20m
2026-07-02 N670RB - Jul 2, 11:00 UTCJul 2, 11:15 UTC15m
2026-07-01 N670RB - Jul 1, 13:35 UTCJul 1, 15:45 UTC2h 10m
2026-06-30 N670RB - Jun 30, 18:50 UTCJun 30, 19:40 UTC50m
2026-06-30 - - Jun 30, 11:05 UTCJun 30, 11:25 UTC20m
2026-06-29 N670RB - Jun 29, 19:39 UTCJun 29, 19:54 UTC15m
2026-06-29 N670RB - Jun 29, 11:39 UTCJun 29, 14:09 UTC2h 30m
2026-06-26 N670RB - Jun 26, 14:44 UTCJun 26, 17:44 UTC3h 0m
2026-06-25 N670RB - Jun 25, 19:20 UTCJun 25, 20:45 UTC1h 25m
2026-06-25 N670RB - Jun 25, 10:55 UTCJun 25, 12:50 UTC1h 55m
2026-06-24 N670RB - Jun 24, 15:39 UTCJun 24, 16:09 UTC30m
2026-06-20 N670RB - Jun 20, 16:49 UTCJun 20, 17:04 UTC15m
2026-06-20 N670RB - Jun 20, 11:40 UTCJun 20, 16:14 UTC4h 35m
2026-06-19 N670RB - Jun 19, 10:54 UTCJun 19, 12:39 UTC1h 45m
2026-06-17 N670RB - Jun 17, 11:25 UTCJun 17, 11:55 UTC30m
2026-06-16 N670RB - Jun 16, 19:35 UTCJun 16, 19:45 UTC10m
2026-06-16 N670RB - Jun 16, 11:55 UTCJun 16, 14:15 UTC2h 20m
2026-06-15 N670RB - Jun 15, 18:50 UTCJun 15, 19:00 UTC10m
2026-06-15 N670RB - Jun 15, 13:50 UTCJun 15, 14:10 UTC20m
2026-06-12 N670RB - Jun 12, 20:10 UTCJun 12, 21:25 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 N670RB page for operator, model, and routing details .

Mode-S A8DD31 frequently asked

What is Mode-S code A8DD31?
A8DD31 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N670RB.
Where is Mode-S A8DD31 registered?
Mode-S code A8DD31 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 A8DD31 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 18:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8DD31, octal 52156461, decimal 11,066,673.
What flights does A8DD31 operate?
Mode-S A8DD31 has broadcast 1 distinct callsign, including N670RB.