Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4891AB

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-ENL · BOEING 737-800

Hex
4891AB
Octal
22110653
Decimal
4,755,883
Country
PL
Tail
SP-ENL
Type
B738
No current signal · last broadcast 2h ago
Flights observed
260
Distinct callsigns
20
Country
PL
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4891AB.

Country allocation

The ICAO 24-bit address 4891AB 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
ENT5992 - 4 2026-06-29
ENT4769 DAT Enterprise Limited 3 2026-04-16
ENT8KS - 2 2026-04-25
ENT7MK - 2 2026-04-28
ENT7LP - 2 2026-05-10
ENT7824 DAT Enterprise Limited 2 2026-04-18
ENT7342 - 2 2026-06-13
ENT7333 - 2 2026-07-13
ENT7047 - 2 2026-06-04
ENT7031 DAT Enterprise Limited 2 2026-06-02
ENT6TY DAT Enterprise Limited 2 2026-05-16
ENT5991 - 2 2026-06-29
ENT4GN - 2 2026-06-21
ENT4770 DAT Enterprise Limited 2 2026-04-16
ENT4070 - 2 2026-06-27
ENT1TY - 2 2026-04-25
ENT1SH DAT Enterprise Limited 2 2026-06-14
ENT1PU - 2 2026-06-23
ENT1714 - 2 2026-06-29
ENT1713 - 2 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 ENT1367 - Jul 17, 15:55 UTCJul 17, 20:15 UTC4h 20m
2026-07-17 ENT1363 POZ → PMI Jul 17, 04:49 UTCJul 17, 14:39 UTC9h 50m
2026-07-16 ENT4804 - Jul 16, 20:00 UTCJul 16, 22:25 UTC2h 25m
2026-07-16 ENT4663 - Jul 16, 16:30 UTCJul 16, 18:34 UTC2h 5m
2026-07-16 ENT4664 NBE → WRO Jul 16, 13:00 UTCJul 16, 15:14 UTC2h 15m
2026-07-16 ENT4801 - Jul 16, 09:10 UTCJul 16, 11:50 UTC2h 40m
2026-07-16 ENT4802 NBE → WAW Jul 16, 04:25 UTCJul 16, 07:00 UTC2h 35m
2026-07-16 ENT4803 - Jul 16, 01:10 UTCJul 16, 03:35 UTC2h 25m
2026-07-15 ENT7692 - Jul 15, 14:35 UTCJul 15, 17:25 UTC2h 50m
2026-07-15 ENT7691 - Jul 15, 08:10 UTCJul 15, 14:30 UTC6h 20m
2026-07-14 ENT7117 - Jul 14, 16:55 UTCJul 15, 02:10 UTC9h 14m
2026-07-14 ENT1156 - Jul 14, 04:35 UTCJul 14, 13:40 UTC9h 5m
2026-07-13 ENT7333 - Jul 13, 16:45 UTCJul 14, 02:15 UTC9h 30m
2026-07-13 ENT7334 - Jul 13, 04:15 UTCJul 13, 13:25 UTC9h 10m
2026-07-12 ENT4592 - Jul 12, 17:05 UTCJul 12, 19:25 UTC2h 20m
2026-07-12 ENT4185 - Jul 12, 13:10 UTCJul 12, 15:45 UTC2h 35m
2026-07-12 ENT4186 - Jul 12, 09:20 UTCJul 12, 11:55 UTC2h 35m
2026-07-12 ENT4071 - Jul 12, 05:30 UTCJul 12, 08:10 UTC2h 40m
2026-07-12 ENT4072 - Jul 12, 01:35 UTCJul 12, 03:25 UTC1h 50m
2026-07-11 ENT4591 - Jul 11, 22:10 UTCJul 12, 00:25 UTC2h 15m
2026-07-11 ENT7344 - Jul 11, 11:20 UTCJul 11, 20:20 UTC9h 0m
2026-07-11 ENT7996 - Jul 11, 02:05 UTCJul 11, 09:30 UTC7h 25m
2026-07-10 ENT1WC - Jul 10, 22:05 UTCJul 11, 00:30 UTC2h 25m
2026-07-10 ENT7JK - Jul 10, 18:00 UTCJul 10, 20:15 UTC2h 15m
2026-07-10 ENT1042 - Jul 10, 13:15 UTCJul 10, 16:35 UTC3h 20m
2026-07-10 ENT1041 - Jul 10, 08:45 UTCJul 10, 12:00 UTC3h 15m
2026-07-09 ENT5444 - Jul 9, 13:45 UTCJul 9, 16:05 UTC2h 20m
2026-07-09 ENT5209 - Jul 9, 10:05 UTCJul 9, 12:25 UTC2h 20m
2026-07-09 ENT5210 - Jul 9, 05:45 UTCJul 9, 08:30 UTC2h 45m
2026-07-09 ENT5443 - Jul 9, 02:10 UTCJul 9, 04:15 UTC2h 5m
2026-07-08 ENT8TE - Jul 8, 06:50 UTCJul 8, 08:45 UTC1h 55m
2026-07-08 ENT9MK - Jul 8, 03:45 UTCJul 8, 05:25 UTC1h 40m
2026-07-07 ENT5JX - Jul 7, 20:15 UTCJul 8, 01:10 UTC4h 55m
2026-07-07 ENT4LB - Jul 7, 13:35 UTCJul 7, 18:25 UTC4h 50m
2026-07-06 ENT7333 - Jul 6, 16:20 UTCJul 7, 02:00 UTC9h 40m
2026-07-06 ENT1NG - Jul 6, 09:15 UTCJul 6, 12:25 UTC3h 10m
2026-07-06 ENT1YH - Jul 6, 04:20 UTCJul 6, 07:35 UTC3h 15m
2026-07-05 ENT2MY - Jul 5, 21:05 UTCJul 5, 23:50 UTC2h 45m
2026-07-05 ENT6HM - Jul 5, 17:30 UTCJul 5, 19:50 UTC2h 20m
2026-07-05 ENT4998 - Jul 5, 09:55 UTCJul 5, 12:30 UTC2h 35m
2026-07-05 ENT4997 GDN → BJV Jul 5, 06:20 UTCJul 5, 08:45 UTC2h 25m
2026-07-04 ENT1618 POZ → POZ Jul 4, 19:10 UTCJul 5, 04:55 UTC9h 45m
2026-07-04 ENT8TN - Jul 4, 15:25 UTCJul 4, 17:40 UTC2h 15m
2026-07-04 ENT1EM - Jul 4, 11:55 UTCJul 4, 14:00 UTC2h 5m
2026-07-04 ENT4436 - Jul 4, 08:05 UTCJul 4, 11:00 UTC2h 55m
2026-07-04 ENT4435 - Jul 4, 04:05 UTCJul 4, 06:40 UTC2h 35m
2026-07-03 ENT2DF - Jul 3, 16:35 UTCJul 3, 18:50 UTC2h 15m
2026-07-03 ENT2ZN - Jul 3, 12:30 UTCJul 3, 15:00 UTC2h 30m
2026-07-03 ENT1512 POZ → POZ Jul 3, 01:15 UTCJul 3, 11:10 UTC9h 55m
2026-07-02 ENT4502 NBE → POZ Jul 2, 20:00 UTCJul 2, 22:20 UTC2h 20m

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

Mode-S 4891AB frequently asked

What is Mode-S code 4891AB?
4891AB is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-ENL.
Where is Mode-S 4891AB registered?
Mode-S code 4891AB is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4891AB 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 4891AB, octal 22110653, decimal 4,755,883.
What flights does 4891AB operate?
Mode-S 4891AB has broadcast 20 distinct callsigns, including ENT5992, ENT4769, ENT8KS, ENT7MK, ENT7LP.