Apparatus

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sensors Mode-S transponder

48E951

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-SPM · TECNAM P-2008

Hex
48E951
Octal
22164521
Decimal
4,778,321
Country
PL
Tail
SP-SPM
Type
P208
No current signal · last broadcast 15h ago
Flights observed
238
Distinct callsigns
1
Country
PL
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 48E951.

Country allocation

The ICAO 24-bit address 48E951 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
SPSMN - 238 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SPSMN POZ → POZ Jul 17, 08:40 UTCJul 17, 11:15 UTC2h 35m
2026-07-16 SPSMN - Jul 16, 20:55 UTCJul 16, 23:49 UTC2h 55m
2026-07-16 SPSMN - Jul 16, 19:14 UTCJul 16, 20:05 UTC50m
2026-07-16 SPSMN - Jul 16, 17:40 UTCJul 16, 18:10 UTC30m
2026-07-16 SPSMN - Jul 16, 16:09 UTCJul 16, 17:00 UTC50m
2026-07-16 SPSMN - Jul 16, 12:40 UTCJul 16, 14:15 UTC1h 35m
2026-07-14 SPSMN POZ → POZ Jul 14, 11:00 UTCJul 14, 13:00 UTC2h 0m
2026-07-14 SPSMN - Jul 14, 09:30 UTCJul 14, 10:15 UTC45m
2026-07-14 SPSMN - Jul 14, 06:35 UTCJul 14, 08:20 UTC1h 45m
2026-07-13 SPSMN - Jul 13, 14:30 UTCJul 13, 16:45 UTC2h 15m
2026-07-13 SPSMN - Jul 13, 13:20 UTCJul 13, 13:55 UTC35m
2026-07-13 SPSMN - Jul 13, 11:45 UTCJul 13, 12:25 UTC40m
2026-07-09 SPSMN - Jul 9, 18:35 UTCJul 9, 19:15 UTC40m
2026-07-09 SPSMN - Jul 9, 17:45 UTCJul 9, 18:05 UTC20m
2026-07-09 SPSMN - Jul 9, 16:45 UTCJul 9, 17:00 UTC15m
2026-07-09 SPSMN - Jul 9, 06:20 UTCJul 9, 06:35 UTC15m
2026-07-09 SPSMN - Jul 9, 05:40 UTCJul 9, 05:50 UTC10m
2026-07-09 SPSMN - Jul 9, 04:35 UTCJul 9, 05:05 UTC30m
2026-07-07 SPSMN - Jul 7, 13:15 UTCJul 7, 14:55 UTC1h 40m
2026-07-07 SPSMN POZ → POZ Jul 7, 09:50 UTCJul 7, 12:45 UTC2h 55m
2026-07-04 SPSMN - Jul 4, 12:45 UTCJul 4, 14:10 UTC1h 25m
2026-07-03 SPSMN POZ → POZ Jul 3, 13:10 UTCJul 3, 15:15 UTC2h 5m
2026-07-03 SPSMN - Jul 3, 09:30 UTCJul 3, 11:10 UTC1h 40m
2026-07-02 SPSMN POZ → POZ Jul 2, 20:00 UTCJul 2, 21:45 UTC1h 45m
2026-07-02 SPSMN POZ → POZ Jul 2, 17:05 UTCJul 2, 19:25 UTC2h 20m
2026-07-02 SPSMN - Jul 2, 14:10 UTCJul 2, 16:05 UTC1h 55m
2026-07-02 SPSMN - Jul 2, 11:55 UTCJul 2, 13:30 UTC1h 35m
2026-07-02 SPSMN - Jul 2, 10:10 UTCJul 2, 10:55 UTC45m
2026-06-29 SPSMN - Jun 29, 15:09 UTCJun 29, 16:04 UTC55m
2026-06-29 SPSMN - Jun 29, 09:54 UTCJun 29, 10:59 UTC1h 5m
2026-06-27 SPSMN - Jun 27, 04:34 UTCJun 27, 05:10 UTC35m
2026-06-25 SPSMN - Jun 25, 09:10 UTCJun 25, 09:55 UTC45m
2026-06-25 SPSMN - Jun 25, 07:45 UTCJun 25, 08:14 UTC30m
2026-06-25 SPSMN - Jun 25, 06:14 UTCJun 25, 06:50 UTC35m
2026-06-25 SPSMN - Jun 25, 04:04 UTCJun 25, 05:29 UTC1h 25m
2026-06-24 SPSMN - Jun 24, 19:00 UTCJun 24, 19:29 UTC30m
2026-06-24 SPSMN - Jun 24, 16:24 UTCJun 24, 17:59 UTC1h 35m
2026-06-24 SPSMN - Jun 24, 09:24 UTCJun 24, 10:59 UTC1h 35m
2026-06-24 SPSMN POZ → POZ Jun 24, 04:20 UTCJun 24, 06:55 UTC2h 35m
2026-06-23 SPSMN - Jun 23, 13:29 UTCJun 23, 15:44 UTC2h 15m
2026-06-23 SPSMN - Jun 23, 12:09 UTCJun 23, 12:55 UTC45m
2026-06-23 SPSMN - Jun 23, 10:24 UTCJun 23, 11:24 UTC1h 0m
2026-06-22 SPSMN POZ → POZ Jun 22, 15:05 UTCJun 22, 17:34 UTC2h 30m
2026-06-20 SPSMN - Jun 20, 11:05 UTCJun 20, 12:45 UTC1h 40m
2026-06-20 SPSMN - Jun 20, 08:14 UTCJun 20, 10:09 UTC1h 55m
2026-06-20 SPSMN POZ → POZ Jun 20, 04:24 UTCJun 20, 07:24 UTC3h 0m
2026-06-19 SPSMN POZ → POZ Jun 19, 07:49 UTCJun 19, 09:30 UTC1h 40m
2026-06-18 SPSMN - Jun 18, 15:00 UTCJun 18, 15:50 UTC50m
2026-06-18 SPSMN - Jun 18, 06:10 UTCJun 18, 06:45 UTC35m
2026-06-17 SPSMN - Jun 17, 15:35 UTCJun 17, 18:45 UTC3h 10m

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-SPM page for operator, model, and routing details .

Mode-S 48E951 frequently asked

What is Mode-S code 48E951?
48E951 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-SPM.
Where is Mode-S 48E951 registered?
Mode-S code 48E951 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48E951 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48E951, octal 22164521, decimal 4,778,321.
What flights does 48E951 operate?
Mode-S 48E951 has broadcast 1 distinct callsign, including SPSMN.