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sensors Mode-S transponder

48C5E4

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-SPE · ATR-72-202

Hex
48C5E4
Octal
22142744
Decimal
4,769,252
Country
PL
Tail
SP-SPE
Type
AT72
No current signal · last broadcast Jul 24, 23:30 UTC
Flights observed
197
Distinct callsigns
20
Country
PL
Last broadcast
Jul 24, 23:30 UTC

Last known position

Most recent position reported by Mode-S 48C5E4.

Country allocation

The ICAO 24-bit address 48C5E4 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 20 distinct

Callsign Airline Flights Last seen
SAR1975 - 50 2026-07-24
SAR1976 - 46 2026-07-24
SRN1988 Sirair 21 2026-07-22
SRN1987 Sirair 19 2026-07-22
SAR1981 - 17 2026-07-15
SAR1980 - 15 2026-07-15
SRN1907 - 6 2026-07-09
SRN1906 - 6 2026-07-09
SAR1922 - 3 2026-07-16
SAR1921 - 3 2026-07-16
SRN7987 - 1 2026-06-14
SRN6933 Sirair 1 2026-04-15
SRN6932 Sirair 1 2026-04-15
SRN6262 - 1 2026-04-13
SRN6261 Sirair 1 2026-04-13
SRN1997 Sirair 1 2026-06-24
SRN1996 - 1 2026-06-24
SAR7885 - 1 2026-05-06
SAR7884 - 1 2026-05-06
SAR1985 - 1 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 SAR1975 - Jul 24, 20:45 UTCJul 24, 23:00 UTC2h 15m
2026-07-24 SAR1975 - Jul 24, 19:00 UTCJul 24, 19:45 UTC45m
2026-07-24 SAR1976 - Jul 24, 06:25 UTCJul 24, 07:15 UTC50m
2026-07-24 SAR1976 - Jul 24, 03:00 UTCJul 24, 04:50 UTC1h 50m
2026-07-23 SAR1975 - Jul 23, 20:55 UTCJul 23, 23:00 UTC2h 5m
2026-07-23 SAR1975 - Jul 23, 19:05 UTCJul 23, 19:55 UTC50m
2026-07-23 SAR1976 - Jul 23, 05:50 UTCJul 23, 06:35 UTC45m
2026-07-23 SAR1976 - Jul 23, 03:00 UTCJul 23, 04:45 UTC1h 45m
2026-07-22 SRN1987 POZ → CGN Jul 22, 19:50 UTCJul 22, 21:35 UTC1h 45m
2026-07-22 SRN1988 CGN → POZ Jul 22, 02:30 UTCJul 22, 04:10 UTC1h 40m
2026-07-21 SAR1975 - Jul 21, 21:10 UTCJul 21, 23:15 UTC2h 5m
2026-07-21 SAR1975 - Jul 21, 19:20 UTCJul 21, 20:10 UTC50m
2026-07-21 SAR1976 - Jul 21, 07:10 UTCJul 21, 07:55 UTC45m
2026-07-21 SAR1976 - Jul 21, 03:05 UTCJul 21, 04:55 UTC1h 50m
2026-07-20 SAR1975 - Jul 20, 20:35 UTCJul 20, 22:40 UTC2h 5m
2026-07-20 SAR1976 - Jul 20, 02:10 UTCJul 20, 04:00 UTC1h 50m
2026-07-17 SAR1975 - Jul 17, 20:55 UTCJul 17, 23:25 UTC2h 30m
2026-07-17 SAR1975 - Jul 17, 19:00 UTCJul 17, 19:55 UTC55m
2026-07-17 SAR1976 - Jul 17, 06:05 UTCJul 17, 06:54 UTC50m
2026-07-17 SAR1976 - Jul 17, 02:54 UTCJul 17, 04:49 UTC1h 55m
2026-07-16 SAR1921 - Jul 16, 20:19 UTCJul 16, 22:15 UTC1h 55m
2026-07-16 SAR1922 CGN → LJU Jul 16, 02:35 UTCJul 16, 04:20 UTC1h 45m
2026-07-15 SAR1981 - Jul 15, 19:50 UTCJul 15, 21:50 UTC2h 0m
2026-07-15 SAR1980 - Jul 15, 02:30 UTCJul 15, 04:25 UTC1h 55m
2026-07-14 SAR1981 - Jul 14, 20:40 UTCJul 14, 22:50 UTC2h 9m
2026-07-14 SAR1980 - Jul 14, 02:05 UTCJul 14, 03:55 UTC1h 50m
2026-07-13 SAR1975 - Jul 13, 20:50 UTCJul 13, 23:15 UTC2h 25m
2026-07-13 SAR1975 - Jul 13, 18:45 UTCJul 13, 19:35 UTC50m
2026-07-13 SAR1976 - Jul 13, 04:55 UTCJul 13, 05:45 UTC50m
2026-07-13 SAR1976 - Jul 13, 02:10 UTCJul 13, 04:00 UTC1h 50m
2026-07-10 SAR1981 - Jul 10, 19:35 UTCJul 10, 21:35 UTC2h 0m
2026-07-10 SAR1980 - Jul 10, 02:00 UTCJul 10, 03:55 UTC1h 55m
2026-07-09 SRN1907 - Jul 9, 20:20 UTCJul 9, 22:25 UTC2h 5m
2026-07-09 SRN1906 - Jul 9, 02:35 UTCJul 9, 04:20 UTC1h 45m
2026-07-08 SAR1921 LJU → CGN Jul 8, 20:05 UTCJul 8, 22:10 UTC2h 5m
2026-07-08 SAR1922 CGN → LJU Jul 8, 02:40 UTCJul 8, 04:20 UTC1h 40m
2026-07-07 SRN1907 - Jul 7, 20:30 UTCJul 7, 23:00 UTC2h 30m
2026-07-07 SRN1906 CGN → OSR Jul 7, 02:35 UTCJul 7, 04:15 UTC1h 40m
2026-07-06 SAR1981 KTW → CGN Jul 6, 19:50 UTCJul 6, 22:00 UTC2h 10m
2026-07-06 SAR1980 - Jul 6, 02:05 UTCJul 6, 04:00 UTC1h 55m
2026-07-03 SRN1907 - Jul 3, 20:05 UTCJul 3, 22:15 UTC2h 10m
2026-07-03 SRN1906 - Jul 3, 02:40 UTCJul 3, 04:15 UTC1h 35m
2026-07-02 SRN1907 - Jul 2, 20:20 UTCJul 2, 22:30 UTC2h 10m
2026-07-02 SRN1906 - Jul 2, 02:40 UTCJul 2, 04:25 UTC1h 45m
2026-07-01 SAR1981 KTW → CGN Jul 1, 19:50 UTCJul 1, 22:00 UTC2h 10m
2026-07-01 SAR1980 - Jul 1, 02:10 UTCJul 1, 04:10 UTC2h 0m
2026-06-29 SAR1981 KTW → CGN Jun 29, 22:44 UTCJun 30, 00:45 UTC2h 0m
2026-06-29 SAR1980 CGN → KTW Jun 29, 02:14 UTCJun 29, 04:25 UTC2h 10m
2026-06-26 SRN1987 POZ → CGN Jun 26, 19:55 UTCJun 26, 21:35 UTC1h 40m
2026-06-26 SRN1988 CGN → POZ Jun 26, 02:40 UTCJun 26, 04:20 UTC1h 40m

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

Mode-S 48C5E4 frequently asked

What is Mode-S code 48C5E4?
48C5E4 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-SPE.
Where is Mode-S 48C5E4 registered?
Mode-S code 48C5E4 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C5E4 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 23:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C5E4, octal 22142744, decimal 4,769,252.
What flights does 48C5E4 operate?
Mode-S 48C5E4 has broadcast 20 distinct callsigns, including SAR1975, SAR1976, SRN1988, SRN1987, SAR1981.