Apparatus

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sensors Mode-S transponder

48A5E4

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-KPE · SAAB 340

Hex
48A5E4
Octal
22122744
Decimal
4,761,060
Country
PL
Tail
SP-KPE
Type
SF34
No current signal · last broadcast 3h ago
Flights observed
86
Distinct callsigns
20
Country
PL
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 48A5E4.

Country allocation

The ICAO 24-bit address 48A5E4 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
SRN131 - 4 2026-07-02
SAR1957 - 4 2026-05-21
SRN142 - 3 2026-07-04
SAR1956 - 3 2026-05-21
SRN191 - 2 2026-06-22
SRN187 - 2 2026-07-03
SRN186 - 2 2026-07-03
SRN185 - 2 2026-07-03
SRN181 - 2 2026-06-25
SRN173 - 2 2026-06-19
SRN169 - 2 2026-07-02
SRN168 - 2 2026-07-02
SRN167 - 2 2026-07-02
SRN163 - 2 2026-06-30
SRN162 - 2 2026-06-30
SRN161 - 2 2026-06-30
SRN147 - 2 2026-06-29
SRN141 - 2 2026-07-03
SRN132 - 2 2026-07-02
SRN130 - 2 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 SRN116 - Jul 4, 18:25 UTCJul 4, 19:00 UTC35m
2026-07-04 SRN115 - Jul 4, 16:40 UTCJul 4, 17:15 UTC35m
2026-07-04 SRN142 - Jul 4, 09:30 UTCJul 4, 13:20 UTC3h 50m
2026-07-03 SRN141 - Jul 3, 17:40 UTCJul 3, 20:25 UTC2h 45m
2026-07-03 SRN140 - Jul 3, 15:30 UTCJul 3, 16:35 UTC1h 5m
2026-07-03 SRN187 - Jul 3, 11:15 UTCJul 3, 13:30 UTC2h 15m
2026-07-03 SRN186 STR → NYO Jul 3, 07:10 UTCJul 3, 10:30 UTC3h 20m
2026-07-03 SRN185 WRO → STR Jul 3, 04:25 UTCJul 3, 06:10 UTC1h 45m
2026-07-02 SRN169 - Jul 2, 23:00 UTCJul 3, 00:40 UTC1h 40m
2026-07-02 SRN168 - Jul 2, 19:20 UTCJul 2, 22:15 UTC2h 55m
2026-07-02 SRN167 - Jul 2, 16:40 UTCJul 2, 17:50 UTC1h 10m
2026-07-02 SRN132 - Jul 2, 12:45 UTCJul 2, 14:55 UTC2h 10m
2026-07-02 SRN131 - Jul 2, 10:10 UTCJul 2, 11:35 UTC1h 25m
2026-07-02 SRN131 - Jul 2, 07:40 UTCJul 2, 09:15 UTC1h 35m
2026-07-02 SRN130 - Jul 2, 04:05 UTCJul 2, 06:45 UTC2h 40m
2026-07-01 SRN129 - Jul 1, 23:00 UTCJul 2, 00:55 UTC1h 55m
2026-07-01 SRN128 - Jul 1, 19:20 UTCJul 1, 22:00 UTC2h 40m
2026-07-01 SRN127 WRO → RZE Jul 1, 15:25 UTCJul 1, 16:30 UTC1h 5m
2026-07-01 SRN113 - Jul 1, 10:55 UTCJul 1, 13:35 UTC2h 40m
2026-07-01 SRN112 BEG → TSR Jul 1, 07:15 UTCJul 1, 10:05 UTC2h 50m
2026-07-01 SRN111 DRS → MMX Jul 1, 04:20 UTCJul 1, 06:15 UTC1h 55m
2026-06-30 SRN195 - Jun 30, 19:50 UTCJun 30, 21:30 UTC1h 40m
2026-06-30 SRN194 RZE → FKB Jun 30, 15:35 UTCJun 30, 18:25 UTC2h 50m
2026-06-30 SRN193 WRO → RZE Jun 30, 13:35 UTCJun 30, 14:35 UTC1h 0m
2026-06-30 SRN163 - Jun 30, 10:20 UTCJun 30, 12:00 UTC1h 40m
2026-06-30 SRN162 RZE → FKB Jun 30, 06:20 UTCJun 30, 09:20 UTC3h 0m
2026-06-30 SRN161 WRO → RZE Jun 30, 04:00 UTCJun 30, 05:05 UTC1h 5m
2026-06-29 SRN149 - Jun 29, 21:50 UTCJun 29, 23:39 UTC1h 50m
2026-06-29 SRN148 - Jun 29, 18:05 UTCJun 29, 20:49 UTC2h 45m
2026-06-29 SRN147 WRO → RZE Jun 29, 15:24 UTCJun 29, 16:29 UTC1h 5m
2026-06-26 SRN187 STR → WRO Jun 26, 18:15 UTCJun 26, 19:50 UTC1h 35m
2026-06-26 SRN186 - Jun 26, 02:20 UTCJun 26, 04:10 UTC1h 50m
2026-06-26 SRN185 - Jun 26, 00:20 UTCJun 26, 00:50 UTC30m
2026-06-25 SRN182 - Jun 25, 20:45 UTCJun 25, 22:24 UTC1h 40m
2026-06-25 SRN181 RZE → FKB Jun 25, 15:20 UTCJun 25, 17:54 UTC2h 35m
2026-06-25 SRN181 BRQ → RZE Jun 25, 13:14 UTCJun 25, 14:24 UTC1h 10m
2026-06-22 SRN191 TLS → BRQ Jun 22, 20:44 UTCJun 23, 00:19 UTC3h 35m
2026-06-22 SRN191 - Jun 22, 17:25 UTCJun 22, 19:34 UTC2h 10m
2026-06-22 SRN190 - Jun 22, 13:39 UTCJun 22, 15:29 UTC1h 50m
2026-06-21 SRN142 - Jun 21, 05:44 UTCJun 21, 09:29 UTC3h 45m
2026-06-21 SRN142 BRQ → LYS Jun 21, 01:19 UTCJun 21, 03:49 UTC2h 30m
2026-06-20 SRN141 WRO → BRQ Jun 20, 22:25 UTCJun 20, 23:25 UTC1h 0m
2026-06-19 SRN173 STR → WRO Jun 19, 09:19 UTCJun 19, 10:50 UTC1h 30m
2026-06-19 SRN172 - Jun 19, 05:54 UTCJun 19, 08:14 UTC2h 20m
2026-06-19 SRN171 - Jun 19, 02:45 UTCJun 19, 04:14 UTC1h 30m
2026-06-18 SRN165 - Jun 18, 23:15 UTCJun 19, 01:34 UTC2h 19m
2026-06-18 SRN164 - Jun 18, 20:20 UTCJun 18, 21:50 UTC1h 30m
2026-06-18 SRN163 - Jun 18, 17:30 UTCJun 18, 19:00 UTC1h 30m
2026-06-17 SRN162 - Jun 17, 20:00 UTCJun 17, 21:20 UTC1h 20m
2026-06-17 SRN161 - Jun 17, 17:35 UTCJun 17, 19:20 UTC1h 45m

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

Mode-S 48A5E4 frequently asked

What is Mode-S code 48A5E4?
48A5E4 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-KPE.
Where is Mode-S 48A5E4 registered?
Mode-S code 48A5E4 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48A5E4 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48A5E4, octal 22122744, decimal 4,761,060.
What flights does 48A5E4 operate?
Mode-S 48A5E4 has broadcast 20 distinct callsigns, including SRN131, SAR1957, SRN142, SAR1956, SRN191.