Apparatus

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sensors Mode-S transponder

48A5E9

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-KPK · SAAB 340

Hex
48A5E9
Octal
22122751
Decimal
4,761,065
Country
PL
Tail
SP-KPK
Type
SF34
No current signal · last broadcast 1h ago
Flights observed
131
Distinct callsigns
6
Country
PL
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 48A5E9.

Country allocation

The ICAO 24-bit address 48A5E9 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 6 distinct

Callsign Airline Flights Last seen
SRN3150 - 35 2026-07-14
SRN3151 - 32 2026-07-13
SRN3273 Sirair 31 2026-07-01
SRN3272 - 31 2026-07-01
SRN771P - 1 2026-06-28
SRN770P - 1 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SRN3150 CPH → KRS Jul 14, 05:35 UTCJul 14, 06:40 UTC1h 5m
2026-07-13 SRN3151 KRS → CPH Jul 13, 18:00 UTCJul 13, 19:00 UTC1h 0m
2026-07-13 SRN3150 CPH → KRS Jul 13, 03:45 UTCJul 13, 04:50 UTC1h 5m
2026-07-10 SRN3151 KRS → CPH Jul 10, 18:00 UTCJul 10, 19:00 UTC1h 0m
2026-07-10 SRN3150 CPH → KRS Jul 10, 05:30 UTCJul 10, 06:35 UTC1h 5m
2026-07-09 SRN3151 KRS → CPH Jul 9, 18:00 UTCJul 9, 19:00 UTC1h 0m
2026-07-09 SRN3150 CPH → KRS Jul 9, 05:30 UTCJul 9, 06:40 UTC1h 10m
2026-07-08 SRN3151 KRS → CPH Jul 8, 18:00 UTCJul 8, 18:50 UTC50m
2026-07-08 SRN3150 - Jul 8, 05:35 UTCJul 8, 06:45 UTC1h 10m
2026-07-07 SRN3151 KRS → CPH Jul 7, 17:55 UTCJul 7, 18:50 UTC55m
2026-07-07 SRN3150 - Jul 7, 05:45 UTCJul 7, 07:00 UTC1h 15m
2026-07-06 SRN3151 - Jul 6, 18:20 UTCJul 6, 19:15 UTC55m
2026-07-06 SRN3150 - Jul 6, 03:55 UTCJul 6, 05:10 UTC1h 15m
2026-07-03 SRN3151 KRS → CPH Jul 3, 18:10 UTCJul 3, 19:15 UTC1h 5m
2026-07-03 SRN3150 - Jul 3, 05:40 UTCJul 3, 06:50 UTC1h 10m
2026-07-02 SRN3151 KRS → CPH Jul 2, 18:00 UTCJul 2, 19:00 UTC1h 0m
2026-07-02 SRN3150 - Jul 2, 05:35 UTCJul 2, 06:51 UTC1h 16m
2026-07-01 SRN3273 AES → CPH Jul 1, 16:30 UTCJul 1, 18:30 UTC2h 0m
2026-07-01 SRN3272 - Jul 1, 05:35 UTCJul 1, 07:30 UTC1h 55m
2026-06-30 SRN3273 AES → CPH Jun 30, 16:30 UTCJun 30, 18:40 UTC2h 10m
2026-06-30 SRN3272 - Jun 30, 05:40 UTCJun 30, 07:45 UTC2h 5m
2026-06-29 SRN3273 AES → CPH Jun 29, 16:50 UTCJun 29, 18:49 UTC2h 0m
2026-06-29 SRN3272 - Jun 29, 04:25 UTCJun 29, 06:14 UTC1h 50m
2026-06-28 SRN771P WAW → CPH Jun 28, 20:25 UTCJun 28, 22:34 UTC2h 10m
2026-06-27 SRN770P - Jun 27, 04:09 UTCJun 27, 05:49 UTC1h 40m
2026-06-26 SRN3151 KRS → CPH Jun 26, 17:59 UTCJun 26, 19:00 UTC1h 0m
2026-06-26 SRN3150 - Jun 26, 05:30 UTCJun 26, 06:39 UTC1h 10m
2026-06-25 SRN3151 KRS → CPH Jun 25, 18:00 UTCJun 25, 18:55 UTC55m
2026-06-25 SRN3150 - Jun 25, 05:39 UTCJun 25, 06:55 UTC1h 15m
2026-06-24 SRN3151 - Jun 24, 18:05 UTCJun 24, 19:10 UTC1h 5m
2026-06-24 SRN3150 - Jun 24, 05:34 UTCJun 24, 06:50 UTC1h 15m
2026-06-23 SRN3151 KRS → CPH Jun 23, 17:54 UTCJun 23, 19:00 UTC1h 5m
2026-06-23 SRN3150 - Jun 23, 05:34 UTCJun 23, 06:44 UTC1h 10m
2026-06-22 SRN3151 KRS → CPH Jun 22, 18:04 UTCJun 22, 19:05 UTC1h 0m
2026-06-22 SRN3150 - Jun 22, 03:35 UTCJun 22, 04:44 UTC1h 10m
2026-06-19 SRN3273 AES → CPH Jun 19, 16:49 UTCJun 19, 18:49 UTC2h 0m
2026-06-19 SRN3272 - Jun 19, 05:30 UTCJun 19, 07:25 UTC1h 55m
2026-06-18 SRN3273 AES → CPH Jun 18, 16:40 UTCJun 18, 18:25 UTC1h 45m
2026-06-18 SRN3272 - Jun 18, 05:25 UTCJun 18, 07:35 UTC2h 10m
2026-06-17 SRN3273 AES → CPH Jun 17, 16:50 UTCJun 17, 18:50 UTC2h 0m
2026-06-17 SRN3272 - Jun 17, 05:35 UTCJun 17, 07:40 UTC2h 5m
2026-06-16 SRN3273 AES → CPH Jun 16, 16:39 UTCJun 16, 18:25 UTC1h 45m
2026-06-16 SRN3272 - Jun 16, 05:30 UTCJun 16, 07:25 UTC1h 55m
2026-06-15 SRN3273 AES → CPH Jun 15, 16:45 UTCJun 15, 18:29 UTC1h 45m
2026-06-15 SRN3272 - Jun 15, 04:04 UTCJun 15, 06:00 UTC1h 55m
2026-06-12 SRN3273 AES → CPH Jun 12, 16:40 UTCJun 12, 18:35 UTC1h 55m
2026-06-12 SRN3272 - Jun 12, 05:35 UTCJun 12, 07:30 UTC1h 55m
2026-06-11 SRN3273 AES → CPH Jun 11, 16:30 UTCJun 11, 18:40 UTC2h 10m
2026-06-11 SRN3272 CPH → AES Jun 11, 06:00 UTCJun 11, 07:55 UTC1h 55m
2026-06-10 SRN3273 AES → CPH Jun 10, 16:35 UTCJun 10, 18:30 UTC1h 55m

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

Mode-S 48A5E9 frequently asked

What is Mode-S code 48A5E9?
48A5E9 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-KPK.
Where is Mode-S 48A5E9 registered?
Mode-S code 48A5E9 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48A5E9 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48A5E9, octal 22122751, decimal 4,761,065.
What flights does 48A5E9 operate?
Mode-S 48A5E9 has broadcast 6 distinct callsigns, including SRN3150, SRN3151, SRN3273, SRN3272, SRN771P.