Apparatus

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sensors Mode-S transponder

A1B16A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N208TF · CESSNA 208 Caravan · operated by AERO LEASING

Hex
A1B16A
Octal
50330552
Decimal
10,596,714
Country
US
Tail
N208TF
Type
C208
No current signal · last broadcast 18h ago
Flights observed
89
Distinct callsigns
9
Country
US
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S A1B16A.

Country allocation

The ICAO 24-bit address A1B16A 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 9 distinct

Callsign Airline Flights Last seen
MRA613 - 34 2026-07-17
MRA685 - 24 2026-05-12
MRA603 - 17 2026-06-16
MRA625 - 6 2026-05-16
MRA662 - 3 2026-05-15
MRA505 - 2 2026-05-12
N208TF - 1 2026-05-11
MRA67 - 1 2026-05-18
MRA437 - 1 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 MRA613 - Jul 17, 13:25 UTCJul 17, 13:55 UTC30m
2026-07-17 MRA613 - Jul 17, 10:44 UTCJul 17, 11:04 UTC20m
2026-07-16 MRA613 - Jul 16, 13:15 UTCJul 16, 13:40 UTC25m
2026-07-16 MRA613 - Jul 16, 10:55 UTCJul 16, 11:34 UTC40m
2026-07-15 MRA613 - Jul 15, 13:25 UTCJul 15, 13:50 UTC25m
2026-07-15 MRA613 - Jul 15, 10:40 UTCJul 15, 11:25 UTC45m
2026-07-14 MRA613 - Jul 14, 13:30 UTCJul 14, 13:40 UTC10m
2026-07-14 MRA613 - Jul 14, 11:05 UTCJul 14, 11:35 UTC30m
2026-07-10 MRA613 - Jul 10, 11:15 UTCJul 10, 11:40 UTC25m
2026-07-09 MRA613 - Jul 9, 14:25 UTCJul 9, 14:45 UTC20m
2026-07-09 MRA613 - Jul 9, 11:00 UTCJul 9, 11:30 UTC30m
2026-07-08 MRA613 - Jul 8, 13:25 UTCJul 8, 13:50 UTC25m
2026-07-08 MRA613 - Jul 8, 10:45 UTCJul 8, 11:20 UTC35m
2026-07-07 MRA613 - Jul 7, 13:35 UTCJul 7, 13:55 UTC20m
2026-07-07 MRA613 - Jul 7, 11:05 UTCJul 7, 11:30 UTC25m
2026-07-03 MRA613 - Jul 3, 13:15 UTCJul 3, 13:50 UTC35m
2026-07-03 MRA613 - Jul 3, 11:15 UTCJul 3, 11:40 UTC25m
2026-07-02 MRA613 - Jul 2, 13:25 UTCJul 2, 13:50 UTC25m
2026-07-02 MRA613 - Jul 2, 11:20 UTCJul 2, 11:45 UTC25m
2026-07-01 MRA613 - Jul 1, 13:45 UTCJul 1, 14:15 UTC30m
2026-07-01 MRA613 - Jul 1, 11:25 UTCJul 1, 11:55 UTC30m
2026-06-30 MRA613 - Jun 30, 13:35 UTCJun 30, 14:00 UTC25m
2026-06-30 MRA613 - Jun 30, 11:25 UTCJun 30, 11:55 UTC30m
2026-06-25 MRA613 - Jun 25, 13:50 UTCJun 25, 14:20 UTC30m
2026-06-25 MRA613 - Jun 25, 11:15 UTCJun 25, 11:39 UTC25m
2026-06-24 MRA613 - Jun 24, 13:44 UTCJun 24, 14:00 UTC15m
2026-06-24 MRA613 - Jun 24, 11:05 UTCJun 24, 11:39 UTC35m
2026-06-23 MRA613 - Jun 23, 13:24 UTCJun 23, 13:50 UTC25m
2026-06-23 MRA613 - Jun 23, 10:55 UTCJun 23, 11:24 UTC30m
2026-06-18 MRA613 - Jun 18, 13:05 UTCJun 18, 13:35 UTC30m
2026-06-18 MRA613 - Jun 18, 10:45 UTCJun 18, 11:20 UTC35m
2026-06-16 MRA603 - Jun 16, 23:55 UTCJun 17, 00:10 UTC15m
2026-06-16 MRA603 - Jun 16, 11:30 UTCJun 16, 12:00 UTC30m
2026-06-15 MRA603 - Jun 15, 23:54 UTCJun 16, 00:15 UTC20m
2026-06-12 MRA603 - Jun 12, 12:15 UTCJun 12, 12:25 UTC10m
2026-06-10 MRA603 - Jun 10, 23:50 UTCJun 11, 00:00 UTC10m
2026-06-10 MRA603 - Jun 10, 11:40 UTCJun 10, 12:20 UTC40m
2026-06-09 MRA603 - Jun 9, 11:25 UTCJun 9, 11:35 UTC10m
2026-06-06 MRA603 - Jun 6, 12:14 UTCJun 6, 12:24 UTC10m
2026-06-05 MRA603 - Jun 5, 11:30 UTCJun 5, 12:00 UTC30m
2026-06-03 MRA603 - Jun 3, 11:35 UTCJun 3, 11:45 UTC10m
2026-06-02 MRA603 - Jun 2, 11:00 UTCJun 2, 11:35 UTC35m
2026-06-02 MRA603 - Jun 2, 00:10 UTCJun 2, 00:20 UTC10m
2026-05-29 MRA603 - May 29, 12:20 UTCMay 29, 12:35 UTC15m
2026-05-28 MRA603 - May 28, 11:50 UTCMay 28, 12:05 UTC15m
2026-05-27 MRA603 - May 27, 11:05 UTCMay 27, 11:35 UTC30m
2026-05-22 MRA603 - May 22, 11:50 UTCMay 22, 12:00 UTC10m
2026-05-21 MRA603 - May 21, 11:45 UTCMay 21, 11:55 UTC10m
2026-05-20 MRA613 - May 20, 13:30 UTCMay 20, 13:40 UTC10m
2026-05-20 MRA613 - May 20, 11:00 UTCMay 20, 11:35 UTC35m

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 N208TF page for operator, model, and routing details .

Mode-S A1B16A frequently asked

What is Mode-S code A1B16A?
A1B16A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N208TF.
Where is Mode-S A1B16A registered?
Mode-S code A1B16A 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 A1B16A broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1B16A, octal 50330552, decimal 10,596,714.
What flights does A1B16A operate?
Mode-S A1B16A has broadcast 9 distinct callsigns, including MRA613, MRA685, MRA603, MRA625, MRA662.