Apparatus

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sensors Mode-S transponder

AF3BC2

ICAO 24-bit transponder address

Currently assigned to 170113 · SIKORSKY UH-60 Black Hawk

Hex
AF3BC2
Octal
53635702
Decimal
11,484,098
Tail
170113
Type
H60
No current signal · last broadcast 12d ago
Flights observed
93
Distinct callsigns
3
Country
-
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S AF3BC2.

Callsign history 3 distinct

Callsign Airline Flights Last seen
SHWK427 - 89 2026-07-02
SHWK436 - 3 2026-06-11
SHWK402 - 1 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-02 SHWK427 NZY → NZY Jul 2, 03:40 UTCJul 2, 05:15 UTC1h 35m
2026-07-02 SHWK427 NZY → NZY Jul 2, 01:20 UTCJul 2, 02:55 UTC1h 35m
2026-06-27 SHWK427 NZY → NZY Jun 27, 01:09 UTCJun 27, 02:50 UTC1h 40m
2026-06-26 SHWK427 NZY → NZY Jun 26, 21:55 UTCJun 27, 00:25 UTC2h 30m
2026-06-25 SHWK427 - Jun 25, 05:39 UTCJun 25, 07:09 UTC1h 30m
2026-06-25 SHWK427 - Jun 25, 02:59 UTCJun 25, 04:54 UTC1h 55m
2026-06-25 SHWK427 NZY → NZY Jun 25, 00:35 UTCJun 25, 02:19 UTC1h 45m
2026-06-24 SHWK427 - Jun 24, 21:44 UTCJun 25, 00:14 UTC2h 30m
2026-06-24 SHWK427 NZY → NZY Jun 24, 19:00 UTCJun 24, 21:40 UTC2h 40m
2026-06-24 SHWK427 NZY → NZY Jun 24, 16:34 UTCJun 24, 18:20 UTC1h 45m
2026-06-24 SHWK427 - Jun 24, 04:44 UTCJun 24, 05:54 UTC1h 10m
2026-06-24 SHWK427 NZY → NZY Jun 24, 02:15 UTCJun 24, 04:15 UTC2h 0m
2026-06-23 SHWK402 NZY → NZY Jun 23, 23:50 UTCJun 24, 01:14 UTC1h 25m
2026-06-17 SHWK427 NZY → NZY Jun 17, 05:45 UTCJun 17, 07:05 UTC1h 20m
2026-06-17 SHWK427 NRS → NZY Jun 17, 04:15 UTCJun 17, 04:40 UTC25m
2026-06-17 SHWK427 NZY → NRS Jun 17, 02:50 UTCJun 17, 04:10 UTC1h 20m
2026-06-17 SHWK427 NRS → NZY Jun 17, 00:45 UTCJun 17, 02:45 UTC2h 0m
2026-06-17 SHWK427 - Jun 17, 00:20 UTCJun 17, 00:40 UTC20m
2026-06-16 SHWK427 NZY → NZY Jun 16, 22:00 UTCJun 17, 00:15 UTC2h 15m
2026-06-16 SHWK427 - Jun 16, 20:20 UTCJun 16, 21:00 UTC40m
2026-06-16 SHWK427 NZY → NZY Jun 16, 19:05 UTCJun 16, 20:15 UTC1h 11m
2026-06-16 SHWK427 - Jun 16, 16:20 UTCJun 16, 16:35 UTC15m
2026-06-16 SHWK427 - Jun 16, 03:35 UTCJun 16, 06:25 UTC2h 50m
2026-06-16 SHWK427 - Jun 16, 02:45 UTCJun 16, 03:04 UTC20m
2026-06-15 SHWK427 NZY → NZY Jun 15, 21:55 UTCJun 16, 01:55 UTC4h 0m
2026-06-15 SHWK427 - Jun 15, 20:30 UTCJun 15, 21:40 UTC1h 10m
2026-06-13 SHWK427 - Jun 13, 01:35 UTCJun 13, 02:50 UTC1h 15m
2026-06-12 SHWK427 - Jun 12, 23:00 UTCJun 13, 00:20 UTC1h 20m
2026-06-12 SHWK427 - Jun 12, 05:40 UTCJun 12, 06:05 UTC25m
2026-06-12 SHWK427 - Jun 12, 03:45 UTCJun 12, 05:10 UTC1h 25m
2026-06-11 SHWK427 - Jun 11, 23:15 UTCJun 12, 00:10 UTC55m
2026-06-11 SHWK436 NZY → NZY Jun 11, 20:30 UTCJun 11, 22:20 UTC1h 50m
2026-06-11 SHWK436 NZY → NZY Jun 11, 18:00 UTCJun 11, 19:50 UTC1h 50m
2026-06-11 SHWK436 NZY → NZY Jun 11, 15:30 UTCJun 11, 17:45 UTC2h 15m
2026-06-11 SHWK427 NZY → NZY Jun 11, 03:35 UTCJun 11, 05:10 UTC1h 35m
2026-06-11 SHWK427 - Jun 11, 01:00 UTCJun 11, 02:45 UTC1h 45m
2026-06-10 SHWK427 NZY → NZY Jun 10, 22:50 UTCJun 11, 00:55 UTC2h 5m
2026-06-10 SHWK427 NZY → NZY Jun 10, 20:35 UTCJun 10, 22:05 UTC1h 30m
2026-06-10 SHWK427 NZY → NZY Jun 10, 17:50 UTCJun 10, 19:30 UTC1h 40m
2026-06-10 SHWK427 NZY → NZY Jun 10, 15:45 UTCJun 10, 17:15 UTC1h 30m
2026-06-09 SHWK427 NZY → NZY Jun 9, 03:40 UTCJun 9, 07:00 UTC3h 20m
2026-06-09 SHWK427 - Jun 9, 00:50 UTCJun 9, 02:35 UTC1h 45m
2026-06-08 SHWK427 - Jun 8, 22:20 UTCJun 9, 00:10 UTC1h 50m
2026-06-08 SHWK427 NZY → NZY Jun 8, 19:35 UTCJun 8, 22:15 UTC2h 40m
2026-06-03 SHWK427 NZY → NZY Jun 3, 22:05 UTCJun 4, 00:05 UTC2h 0m
2026-06-03 SHWK427 NZY → NZY Jun 3, 21:50 UTCJun 3, 22:00 UTC10m
2026-05-03 SHWK427 NZY → NZY May 3, 05:45 UTCMay 3, 07:45 UTC2h 0m
2026-05-03 SHWK427 - May 3, 05:05 UTCMay 3, 05:25 UTC20m
2026-05-03 SHWK427 - May 3, 02:35 UTCMay 3, 03:05 UTC30m
2026-05-03 SHWK427 - May 3, 01:30 UTCMay 3, 02:15 UTC45m

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 170113 page for operator, model, and routing details .

Mode-S AF3BC2 frequently asked

What is Mode-S code AF3BC2?
AF3BC2 is an ICAO 24-bit transponder address. Assigned to 170113.
Is AF3BC2 broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AF3BC2, octal 53635702, decimal 11,484,098.
What flights does AF3BC2 operate?
Mode-S AF3BC2 has broadcast 3 distinct callsigns, including SHWK427, SHWK436, SHWK402.