sensors Mode-S transponder

48E899

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-ESN · BOEING 737-800

Hex
48E899
Octal
22164231
Decimal
4,778,137
Country
PL
Tail
SP-ESN
Type
B738
No current signal · last broadcast 2h ago
Flights observed
84
Distinct callsigns
20
Country
PL
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 48E899.

Country allocation

The ICAO 24-bit address 48E899 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
ENT509N - 3 2026-04-21
ENT8UM - 2 2026-04-17
ENT7006 DAT Enterprise Limited 2 2026-05-16
ENT6BW - 2 2026-04-18
ENT9JP - 1 2026-04-21
ENT8WT - 1 2026-04-22
ENT8RW - 1 2026-05-10
ENT8RH DAT Enterprise Limited 1 2026-05-20
ENT8MK - 1 2026-05-17
ENT8DK - 1 2026-04-20
ENT7GB DAT Enterprise Limited 1 2026-04-19
ENT7996 - 1 2026-05-23
ENT7552 - 1 2026-05-04
ENT7408 - 1 2026-05-23
ENT7342 - 1 2026-05-09
ENT7341 - 1 2026-05-09
ENT7184 - 1 2026-05-08
ENT7183 - 1 2026-05-08
ENT6TP - 1 2026-05-10
ENT6RJ - 1 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ENT4898 - May 30, 01:50 UTCMay 30, 04:30 UTC2h 40m
2026-05-29 ENT4897 KTW → AYT May 29, 22:35 UTCMay 30, 00:45 UTC2h 10m
2026-05-29 ENT4356 - May 29, 18:35 UTCMay 29, 21:20 UTC2h 45m
2026-05-29 ENT4059 RZE → AYT May 29, 15:15 UTCMay 29, 17:20 UTC2h 6m
2026-05-29 ENT4060 - May 29, 11:25 UTCMay 29, 14:10 UTC2h 45m
2026-05-29 ENT4061 - May 29, 07:55 UTCMay 29, 10:05 UTC2h 10m
2026-05-29 ENT4062 - May 29, 03:35 UTCMay 29, 06:25 UTC2h 50m
2026-05-29 ENT4355 KTW → AYT May 29, 00:15 UTCMay 29, 02:05 UTC1h 50m
2026-05-26 ENT4359 - May 26, 04:10 UTCMay 26, 13:29 UTC9h 20m
2026-05-25 ENT4614 - May 25, 14:05 UTCMay 25, 16:35 UTC2h 30m
2026-05-25 ENT4613 KTW → AYT May 25, 10:15 UTCMay 25, 12:45 UTC2h 30m
2026-05-25 ENT4178 - May 25, 01:55 UTCMay 25, 02:15 UTC20m
2026-05-24 ENT4179 - May 24, 16:30 UTCMay 24, 23:46 UTC7h 16m
2026-05-24 ENT4180 AYT → KTW May 24, 04:15 UTCMay 24, 14:00 UTC9h 45m
2026-05-23 ENT7408 - May 23, 16:45 UTCMay 24, 02:30 UTC9h 46m
2026-05-23 ENT7996 - May 23, 07:45 UTCMay 23, 15:05 UTC7h 20m
2026-05-22 ENT1367 - May 22, 15:55 UTCMay 23, 01:35 UTC9h 40m
2026-05-22 ENT1368 - May 22, 04:10 UTCMay 22, 14:15 UTC10h 5m
2026-05-21 ENT1212 - May 21, 20:20 UTCMay 21, 23:05 UTC2h 45m
2026-05-21 ENT1211 - May 21, 16:40 UTCMay 21, 18:50 UTC2h 10m
2026-05-21 ENT4804 - May 21, 12:55 UTCMay 21, 15:10 UTC2h 15m
2026-05-21 ENT4801 - May 21, 08:50 UTCMay 21, 10:55 UTC2h 5m
2026-05-21 ENT4802 - May 21, 04:30 UTCMay 21, 07:05 UTC2h 35m
2026-05-21 ENT4803 - May 21, 00:50 UTCMay 21, 02:50 UTC2h 0m
2026-05-20 ENT8RH SKG → KTW May 20, 17:55 UTCMay 20, 19:35 UTC1h 40m
2026-05-20 ENT5AW KTW → SKG May 20, 15:15 UTCMay 20, 17:00 UTC1h 45m
2026-05-20 ENT1354 AYT → KTW May 20, 07:00 UTCMay 20, 09:20 UTC2h 20m
2026-05-20 ENT1353 KTW → AYT May 20, 03:15 UTCMay 20, 05:40 UTC2h 26m
2026-05-19 ENT4865 - May 19, 16:40 UTCMay 20, 01:55 UTC9h 15m
2026-05-19 ENT4866 - May 19, 02:15 UTCMay 19, 11:35 UTC9h 20m
2026-05-18 ENT1342 - May 18, 14:25 UTCMay 18, 16:25 UTC2h 0m
2026-05-18 ENT1343 - May 18, 10:10 UTCMay 18, 12:45 UTC2h 35m
2026-05-17 ENT4NF - May 17, 14:40 UTCMay 17, 17:15 UTC2h 35m
2026-05-17 ENT8MK - May 17, 10:00 UTCMay 17, 12:50 UTC2h 50m
2026-05-16 ENT7006 RMF → WAW May 16, 19:05 UTCMay 17, 04:40 UTC9h 35m
2026-05-14 ENT4955 - May 14, 08:20 UTCMay 14, 17:10 UTC8h 50m
2026-05-13 ENT4XU KAO → CHQ May 13, 15:30 UTCMay 13, 17:20 UTC1h 50m
2026-05-13 ENT1JA LPA → WAW May 13, 11:25 UTCMay 13, 13:40 UTC2h 15m
2026-05-11 ENT1PN RHO → WAW May 11, 07:40 UTCMay 11, 10:25 UTC2h 45m
2026-05-11 ENT1JU WAW → RHO May 11, 04:10 UTCMay 11, 06:40 UTC2h 30m
2026-05-10 ENT8RW - May 10, 14:25 UTCMay 10, 16:59 UTC2h 35m
2026-05-10 ENT6TP - May 10, 09:50 UTCMay 10, 12:40 UTC2h 50m
2026-05-09 ENT4JC - May 9, 15:45 UTCMay 9, 18:10 UTC2h 25m
2026-05-09 ENT4HB - May 9, 12:05 UTCMay 9, 14:20 UTC2h 15m
2026-05-09 ENT7342 - May 9, 07:50 UTCMay 9, 10:35 UTC2h 45m
2026-05-09 ENT7341 - May 9, 04:25 UTCMay 9, 06:45 UTC2h 20m
2026-05-08 ENT7184 - May 8, 13:15 UTCMay 8, 15:35 UTC2h 20m
2026-05-08 ENT7183 - May 8, 09:44 UTCMay 8, 12:10 UTC2h 25m
2026-05-07 ENT4956 WAW → WAW May 7, 08:25 UTCMay 7, 18:25 UTC10h 0m
2026-05-05 ENT5707 WAW → WAW May 5, 19:50 UTCMay 6, 05:30 UTC9h 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-ESN page for operator, model, and routing details .

Mode-S 48E899 frequently asked

What is Mode-S code 48E899?
48E899 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-ESN.
Where is Mode-S 48E899 registered?
Mode-S code 48E899 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48E899 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48E899, octal 22164231, decimal 4,778,137.
What flights does 48E899 operate?
Mode-S 48E899 has broadcast 20 distinct callsigns, including ENT509N, ENT8UM, ENT7006, ENT6BW, ENT9JP.