sensors Mode-S transponder

4881AC

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-ANM

Hex
4881AC
Octal
22100654
Decimal
4,751,788
Country
PL
Tail
SP-ANM
Type
B738
No current signal · last broadcast 1d ago
Flights observed
28
Distinct callsigns
20
Country
PL
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4881AC.

Country allocation

The ICAO 24-bit address 4881AC 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
ENT4SA DAT Enterprise Limited 2 2026-04-17
ENT4ED - 2 2026-05-04
ENT9LA DAT Enterprise Limited 1 2026-04-24
ENT7342 - 1 2026-05-02
ENT7341 - 1 2026-05-02
ENT7170 - 1 2026-05-23
ENT7092 - 1 2026-05-13
ENT7091 - 1 2026-05-13
ENT7058 - 1 2026-06-06
ENT6DA DAT Enterprise Limited 1 2026-04-24
ENT5UP DAT Enterprise Limited 1 2026-05-29
ENT5UC - 1 2026-06-06
ENT5FX - 1 2026-04-26
ENT5BF - 1 2026-05-31
ENT5848 - 1 2026-05-07
ENT505N - 1 2026-04-23
ENT4997 DAT Enterprise Limited 1 2026-06-07
ENT4767 - 1 2026-06-07
ENT4436 - 1 2026-05-23
ENT4070 - 1 2026-05-09

Recent flights last 28

DateFlightRouteTakeoffLandingDuration
2026-06-07 ENT4767 - Jun 7, 13:40 UTCJun 7, 15:45 UTC2h 5m
2026-06-07 ENT4997 GDN → BJV Jun 7, 06:35 UTCJun 7, 09:10 UTC2h 35m
2026-06-07 ENT1618 - Jun 7, 01:40 UTCJun 7, 05:25 UTC3h 45m
2026-06-06 ENT7058 - Jun 6, 15:30 UTCJun 6, 18:14 UTC2h 45m
2026-06-06 ENT5UC - Jun 6, 04:45 UTCJun 6, 06:30 UTC1h 45m
2026-05-31 ENT5BF - May 31, 13:00 UTCMay 31, 15:40 UTC2h 40m
2026-05-29 ENT5UP ACE → RNS May 29, 12:35 UTCMay 29, 15:45 UTC3h 10m
2026-05-28 ENT4048 - May 28, 02:00 UTCMay 28, 13:10 UTC11h 10m
2026-05-23 ENT7170 - May 23, 12:30 UTCMay 23, 15:20 UTC2h 50m
2026-05-23 ENT4436 - May 23, 04:30 UTCMay 23, 07:15 UTC2h 45m
2026-05-22 ENT1512 - May 22, 07:10 UTCMay 22, 10:55 UTC3h 45m
2026-05-13 ENT7092 - May 13, 15:25 UTCMay 13, 16:40 UTC1h 15m
2026-05-13 ENT7091 - May 13, 13:45 UTCMay 13, 14:10 UTC25m
2026-05-09 ENT4070 WRO → POZ May 9, 09:25 UTCMay 9, 19:10 UTC9h 45m
2026-05-08 ENT4069 - May 8, 22:15 UTCMay 9, 01:10 UTC2h 55m
2026-05-07 ENT5848 - May 7, 11:25 UTCMay 7, 13:30 UTC2h 5m
2026-05-04 ENT4ED - May 4, 11:45 UTCMay 4, 15:00 UTC3h 15m
2026-05-04 ENT4ED - May 4, 11:05 UTCMay 4, 11:40 UTC35m
2026-05-03 ENT1ZD - May 3, 10:15 UTCMay 3, 13:05 UTC2h 50m
2026-05-02 ENT4004 - May 2, 17:30 UTCMay 2, 21:00 UTC3h 30m
2026-05-02 ENT7342 - May 2, 07:40 UTCMay 2, 10:20 UTC2h 40m
2026-05-02 ENT7341 - May 2, 04:05 UTCMay 2, 06:35 UTC2h 30m
2026-04-26 ENT5FX - Apr 26, 12:30 UTCApr 26, 15:50 UTC3h 20m
2026-04-24 ENT6DA CDG → BUD Apr 24, 14:45 UTCApr 24, 16:10 UTC1h 25m
2026-04-24 ENT9LA FRA → PAD Apr 24, 12:25 UTCApr 24, 13:30 UTC1h 5m
2026-04-23 ENT505N - Apr 23, 17:40 UTCApr 23, 19:30 UTC1h 50m
2026-04-17 ENT4SA PMO → CDG Apr 17, 09:20 UTCApr 17, 10:45 UTC1h 25m
2026-04-17 ENT4SA PMO → CDG Apr 17, 08:50 UTCApr 17, 09:15 UTC25m

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

Mode-S 4881AC frequently asked

What is Mode-S code 4881AC?
4881AC is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-ANM.
Where is Mode-S 4881AC registered?
Mode-S code 4881AC is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4881AC broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4881AC, octal 22100654, decimal 4,751,788.
What flights does 4881AC operate?
Mode-S 4881AC has broadcast 20 distinct callsigns, including ENT4SA, ENT4ED, ENT9LA, ENT7342, ENT7341.