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
Broadcasting now · callsign ENT5707 · 35,000 ft
Flights observed
105
Distinct callsigns
20
Country
PL
Last broadcast
3h ago

Current position

4891AB is currently broadcasting. Map zoomed to live position.

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
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
ENT7031 DAT Enterprise Limited 2 2026-06-02
ENT6TY DAT Enterprise Limited 2 2026-05-16
ENT4770 DAT Enterprise Limited 2 2026-04-16
ENT1TY - 2 2026-04-25
ENT9YC - 1 2026-05-14
ENT9GW - 1 2026-05-01
ENT9GC - 1 2026-04-30
ENT9DT - 1 2026-04-26
ENT9DA DAT Enterprise Limited 1 2026-05-18
ENT8WK - 1 2026-04-24
ENT8TB - 1 2026-05-27
ENT8PE - 1 2026-04-28
ENT8KH - 1 2026-04-26
ENT8GF - 1 2026-05-23
ENT8DU - 1 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 ENT7031 WAW → MBA Jun 2, 07:15 UTCJun 2, 17:10 UTC9h 55m
2026-06-01 ENT2TS RHO → WAW Jun 1, 16:55 UTCJun 1, 19:30 UTC2h 35m
2026-06-01 ENT2YA ERF → CDG Jun 1, 12:50 UTCJun 1, 15:30 UTC2h 40m
2026-06-01 ENT4CD FUE → KTW Jun 1, 09:00 UTCJun 1, 11:45 UTC2h 45m
2026-06-01 ENT8DU - Jun 1, 05:10 UTCJun 1, 07:35 UTC2h 25m
2026-05-31 ENT4182 AYT → SZZ May 31, 09:50 UTCMay 31, 19:30 UTC9h 40m
2026-05-31 ENT4FS WAW → LPA May 31, 00:20 UTCMay 31, 01:11 UTC51m
2026-05-30 ENT4004 - May 30, 18:55 UTCMay 30, 22:30 UTC3h 35m
2026-05-30 ENT4597 WAW → SSH May 30, 13:35 UTCMay 30, 16:50 UTC3h 15m
2026-05-30 ENT3RB - May 30, 11:20 UTCMay 30, 12:15 UTC55m
2026-05-30 ENT555 TBS → BER May 30, 08:25 UTCMay 30, 10:25 UTC2h 0m
2026-05-30 ENT7922 IBZ → LTN May 30, 04:25 UTCMay 30, 06:35 UTC2h 10m
2026-05-29 ENT8BJ - May 29, 12:00 UTCMay 29, 14:45 UTC2h 45m
2026-05-28 ENT5848 - May 28, 10:55 UTCMay 28, 13:25 UTC2h 30m
2026-05-28 ENT5847 - May 28, 07:10 UTCMay 28, 09:25 UTC2h 15m
2026-05-27 ENT8TB - May 27, 12:10 UTCMay 27, 14:45 UTC2h 35m
2026-05-27 ENT2XD - May 27, 08:25 UTCMay 27, 10:50 UTC2h 25m
2026-05-26 ENT5708 - May 26, 19:50 UTCMay 27, 05:24 UTC9h 35m
2026-05-26 ENT7031 WAW → MBA May 26, 07:15 UTCMay 26, 16:59 UTC9h 45m
2026-05-25 ENT7552 - May 25, 07:00 UTCMay 25, 16:50 UTC9h 50m
2026-05-24 ENT4UN OPO → WAW May 24, 12:55 UTCMay 24, 16:30 UTC3h 35m
2026-05-24 ENT4DG - May 24, 10:50 UTCMay 24, 11:50 UTC1h 0m
2026-05-23 ENT2CA - May 23, 22:35 UTCMay 24, 00:15 UTC1h 40m
2026-05-23 ENT1SH LPA → WAW May 23, 19:45 UTCMay 23, 21:10 UTC1h 25m
2026-05-23 ENT6JA - May 23, 15:55 UTCMay 23, 17:00 UTC1h 5m
2026-05-23 ENT2ZJ - May 23, 13:10 UTCMay 23, 14:50 UTC1h 40m
2026-05-23 ENT8GF - May 23, 09:55 UTCMay 23, 12:10 UTC2h 15m
2026-05-23 ENT3GS - May 23, 08:30 UTCMay 23, 09:00 UTC30m
2026-05-22 ENT4HS PMO → CDG May 22, 17:05 UTCMay 22, 19:15 UTC2h 10m
2026-05-22 ENT5NK WRO → TFS May 22, 14:05 UTCMay 22, 15:30 UTC1h 25m
2026-05-22 ENT7JX HER → WAW May 22, 12:00 UTCMay 22, 13:00 UTC1h 0m
2026-05-22 ENT4GE SXB → RHO May 22, 08:25 UTCMay 22, 10:45 UTC2h 20m
2026-05-22 ENT6EH CDG → PMO May 22, 05:05 UTCMay 22, 07:00 UTC1h 55m
2026-05-21 ENT5UE - May 21, 13:01 UTCMay 21, 15:00 UTC2h 0m
2026-05-21 ENT598 STN → RZE May 21, 09:45 UTCMay 21, 12:10 UTC2h 25m
2026-05-21 ENT597P - May 21, 07:10 UTCMay 21, 08:05 UTC55m
2026-05-18 ENT1MU NTE → CDG May 18, 17:45 UTCMay 18, 18:40 UTC54m
2026-05-18 ENT704 TIA → CDG May 18, 13:25 UTCMay 18, 16:15 UTC2h 50m
2026-05-18 ENT703 DOL → TIA May 18, 10:15 UTCMay 18, 11:50 UTC1h 35m
2026-05-18 ENT9DA CDG → SXB May 18, 08:15 UTCMay 18, 09:00 UTC45m
2026-05-16 ENT6TY FUE → CDG May 16, 18:50 UTCMay 17, 13:50 UTC19h 0m
2026-05-16 ENT6TY FUE → CDG May 16, 17:20 UTCMay 17, 13:50 UTC20h 30m
2026-05-16 ENT7CM - May 16, 14:11 UTCMay 16, 16:31 UTC2h 20m
2026-05-16 ENT3FH - May 16, 11:25 UTCMay 16, 13:15 UTC1h 50m
2026-05-15 ENT2PJ - May 15, 14:55 UTCMay 15, 15:40 UTC45m
2026-05-15 ENT4GN - May 15, 11:35 UTCMay 15, 13:50 UTC2h 15m
2026-05-15 ENT3WE - May 15, 07:55 UTCMay 15, 10:00 UTC2h 5m
2026-05-15 ENT4ST - May 15, 06:10 UTCMay 15, 06:40 UTC30m
2026-05-14 ENT9YC - May 14, 17:05 UTCMay 14, 17:45 UTC40m
2026-05-14 ENT7GA - May 14, 13:35 UTCMay 14, 15:40 UTC2h 5m

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?
Yes. Mode-S 4891AB is currently airborne.
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 ENT4769, ENT8KS, ENT7MK, ENT7LP, ENT7824.