Apparatus

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sensors Mode-S transponder

48C1D7

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-ROY · PIPER PA-34 Seneca

Hex
48C1D7
Octal
22140727
Decimal
4,768,215
Country
PL
Tail
SP-ROY
Type
PA34
No current signal · last broadcast 11h ago
Flights observed
41
Distinct callsigns
1
Country
PL
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 48C1D7.

Country allocation

The ICAO 24-bit address 48C1D7 falls within the block assigned to Poland (PL) by ICAO Annex 10, Volume III. Every aircraft registered in Poland 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
SPROY - 41 2026-06-02

Recent flights last 41

DateFlightRouteTakeoffLandingDuration
2026-06-02 SPROY - Jun 2, 07:25 UTCJun 2, 08:50 UTC1h 25m
2026-06-01 SPROY - Jun 1, 15:00 UTCJun 1, 16:50 UTC1h 50m
2026-06-01 SPROY - Jun 1, 08:00 UTCJun 1, 10:05 UTC2h 5m
2026-05-31 SPROY - May 31, 13:30 UTCMay 31, 16:10 UTC2h 40m
2026-05-29 SPROY - May 29, 13:10 UTCMay 29, 15:45 UTC2h 35m
2026-05-28 SPROY - May 28, 07:20 UTCMay 28, 08:30 UTC1h 10m
2026-05-27 SPROY - May 27, 10:05 UTCMay 27, 11:25 UTC1h 20m
2026-05-27 SPROY - May 27, 07:20 UTCMay 27, 08:40 UTC1h 20m
2026-05-25 SPROY - May 25, 08:20 UTCMay 25, 10:55 UTC2h 35m
2026-05-25 SPROY - May 25, 06:45 UTCMay 25, 07:45 UTC1h 0m
2026-05-22 SPROY - May 22, 09:30 UTCMay 22, 11:05 UTC1h 35m
2026-05-20 SPROY - May 20, 14:50 UTCMay 20, 15:45 UTC55m
2026-05-19 SPROY - May 19, 08:20 UTCMay 19, 11:25 UTC3h 5m
2026-05-18 SPROY - May 18, 14:15 UTCMay 18, 16:40 UTC2h 25m
2026-05-18 SPROY - May 18, 08:50 UTCMay 18, 11:50 UTC3h 0m
2026-05-16 SPROY - May 16, 06:41 UTCMay 16, 08:46 UTC2h 5m
2026-05-15 SPROY - May 15, 15:00 UTCMay 15, 17:00 UTC2h 0m
2026-05-15 SPROY - May 15, 11:05 UTCMay 15, 12:25 UTC1h 20m
2026-05-14 SPROY - May 14, 13:50 UTCMay 14, 14:55 UTC1h 5m
2026-05-14 SPROY - May 14, 11:01 UTCMay 14, 12:55 UTC1h 55m
2026-05-14 SPROY - May 14, 07:55 UTCMay 14, 10:20 UTC2h 25m
2026-05-10 SPROY - May 10, 10:24 UTCMay 10, 12:19 UTC1h 55m
2026-05-10 SPROY - May 10, 07:25 UTCMay 10, 08:54 UTC1h 30m
2026-05-09 SPROY - May 9, 10:05 UTCMay 9, 11:20 UTC1h 15m
2026-05-07 SPROY - May 7, 11:25 UTCMay 7, 12:50 UTC1h 25m
2026-04-30 SPROY - Apr 30, 12:00 UTCApr 30, 13:15 UTC1h 15m
2026-04-21 SPROY - Apr 21, 11:30 UTCApr 21, 12:40 UTC1h 10m
2026-04-21 SPROY - Apr 21, 08:50 UTCApr 21, 10:30 UTC1h 40m
2026-04-18 SPROY - Apr 18, 07:25 UTCApr 18, 08:10 UTC45m
2026-04-18 SPROY - Apr 18, 07:10 UTCApr 18, 08:10 UTC1h 0m
2026-04-17 SPROY - Apr 17, 13:20 UTCApr 17, 13:50 UTC30m
2026-04-17 SPROY - Apr 17, 11:50 UTCApr 17, 13:15 UTC1h 25m
2026-04-17 SPROY - Apr 17, 09:20 UTCApr 17, 11:05 UTC1h 45m
2026-04-16 SPROY - Apr 16, 15:40 UTCApr 16, 17:05 UTC1h 25m
2026-04-16 SPROY - Apr 16, 09:59 UTCApr 16, 10:54 UTC55m
2026-04-16 SPROY - Apr 16, 08:19 UTCApr 16, 09:05 UTC45m
2026-04-16 SPROY - Apr 16, 07:09 UTCApr 16, 07:34 UTC25m
2026-04-16 SPROY - Apr 16, 06:10 UTCApr 16, 07:05 UTC55m
2026-04-15 SPROY - Apr 15, 11:20 UTCApr 15, 12:15 UTC55m
2026-04-14 SPROY - Apr 14, 14:50 UTCApr 14, 16:45 UTC1h 55m
2026-04-14 SPROY - Apr 14, 14:35 UTCApr 14, 14:45 UTC10m

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 SP-ROY page for operator, model, and routing details .

Mode-S 48C1D7 frequently asked

What is Mode-S code 48C1D7?
48C1D7 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-ROY.
Where is Mode-S 48C1D7 registered?
Mode-S code 48C1D7 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C1D7 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C1D7, octal 22140727, decimal 4,768,215.
What flights does 48C1D7 operate?
Mode-S 48C1D7 has broadcast 1 distinct callsign, including SPROY.