sensors Mode-S transponder

4891B2

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-ENT · BOEING 737-800

Hex
4891B2
Octal
22110662
Decimal
4,755,890
Country
PL
Tail
SP-ENT
Type
B738
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
309
Distinct callsigns
20
Country
PL
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 4891B2.

Country allocation

The ICAO 24-bit address 4891B2 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
ENT6062 DAT Enterprise Limited 20 2026-04-27
ENT6063 - 19 2026-04-27
ENT6631 - 18 2026-04-27
ENT6632 - 16 2026-04-27
ENT5218 - 3 2026-07-16
ENT5215 - 3 2026-07-16
ENT9WS - 2 2026-06-05
ENT7040 - 2 2026-07-15
ENT7039 - 2 2026-07-15
ENT5RC - 2 2026-07-04
ENT5LG - 2 2026-07-17
ENT5744 - 2 2026-05-30
ENT5743 - 2 2026-05-30
ENT5632 - 2 2026-05-24
ENT5631 - 2 2026-05-24
ENT5222 DAT Enterprise Limited 2 2026-05-22
ENT5221 - 2 2026-05-22
ENT5217 - 2 2026-07-16
ENT5216 - 2 2026-07-16
ENT5159 DAT Enterprise Limited 2 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENT7140 AYT → WRO Jul 26, 21:40 UTCJul 26, 22:30 UTC50m
2026-07-26 ENT7029 KRK → AYT Jul 26, 18:20 UTCJul 26, 20:30 UTC2h 10m
2026-07-26 ENT4768 - Jul 26, 14:45 UTCJul 26, 17:00 UTC2h 15m
2026-07-26 ENT4767 - Jul 26, 11:35 UTCJul 26, 13:35 UTC2h 0m
2026-07-26 ENT7030 - Jul 26, 07:40 UTCJul 26, 10:10 UTC2h 30m
2026-07-26 ENT7139 WRO → AYT Jul 26, 03:25 UTCJul 26, 05:55 UTC2h 30m
2026-07-25 ENT2074 - Jul 25, 16:20 UTCJul 26, 01:45 UTC9h 25m
2026-07-25 ENT1364 - Jul 25, 00:00 UTCJul 25, 03:15 UTC3h 15m
2026-07-24 ENT1035 - Jul 24, 18:05 UTCJul 24, 22:05 UTC4h 0m
2026-07-24 ENT2JG RVN → WAW Jul 24, 16:05 UTCJul 24, 16:40 UTC35m
2026-07-24 ENT1363 POZ → PMI Jul 24, 04:20 UTCJul 24, 15:00 UTC10h 40m
2026-07-23 ENT1212 - Jul 23, 20:55 UTCJul 23, 23:20 UTC2h 25m
2026-07-23 ENT1007 - Jul 23, 16:35 UTCJul 23, 19:20 UTC2h 45m
2026-07-23 ENT1008 - Jul 23, 12:45 UTCJul 23, 15:20 UTC2h 35m
2026-07-23 ENT1215 - Jul 23, 08:30 UTCJul 23, 11:15 UTC2h 45m
2026-07-23 ENT1216 - Jul 23, 04:20 UTCJul 23, 07:15 UTC2h 55m
2026-07-23 ENT1211 - Jul 23, 00:25 UTCJul 23, 02:50 UTC2h 25m
2026-07-22 ENT7692 - Jul 22, 10:20 UTCJul 22, 17:25 UTC7h 5m
2026-07-21 ENT7118 - Jul 21, 17:00 UTCJul 22, 02:15 UTC9h 15m
2026-07-21 ENT7554 - Jul 21, 05:50 UTCJul 21, 15:10 UTC9h 20m
2026-07-21 ENT229 TLV → KTW Jul 21, 01:25 UTCJul 21, 04:35 UTC3h 10m
2026-07-20 ENT228 KTW → TLV Jul 20, 19:50 UTCJul 20, 22:50 UTC3h 0m
2026-07-20 ENT341 - Jul 20, 02:45 UTCJul 20, 05:55 UTC3h 10m
2026-07-19 ENT340 WAW → TLV Jul 19, 21:40 UTCJul 20, 00:40 UTC3h 0m
2026-07-19 ENT5HY GDN → OSL Jul 19, 16:25 UTCJul 19, 18:40 UTC2h 15m
2026-07-19 ENT8UA KTW → FUE Jul 19, 12:10 UTCJul 19, 15:05 UTC2h 55m
2026-07-19 ENT3DY - Jul 19, 02:40 UTCJul 19, 05:05 UTC2h 25m
2026-07-18 ENT6RK FUE → POZ Jul 18, 23:05 UTCJul 19, 01:20 UTC2h 15m
2026-07-18 ENT7188 AYT → WRO Jul 18, 18:15 UTCJul 18, 20:55 UTC2h 40m
2026-07-18 ENT4007 - Jul 18, 14:15 UTCJul 18, 16:50 UTC2h 35m
2026-07-18 ENT4008 - Jul 18, 10:00 UTCJul 18, 13:05 UTC3h 5m
2026-07-18 ENT7061 - Jul 18, 06:10 UTCJul 18, 08:40 UTC2h 30m
2026-07-18 ENT7062 - Jul 18, 01:50 UTCJul 18, 04:40 UTC2h 51m
2026-07-17 ENT7187 - Jul 17, 22:20 UTCJul 18, 00:45 UTC2h 25m
2026-07-17 ENT6SF SXB → CDG Jul 17, 15:25 UTCJul 17, 18:05 UTC2h 40m
2026-07-17 ENT3XA - Jul 17, 11:35 UTCJul 17, 13:40 UTC2h 5m
2026-07-17 ENT5LG RHO → RZE Jul 17, 05:55 UTCJul 17, 08:25 UTC2h 30m
2026-07-17 ENT5CK WRO → RHO Jul 17, 02:20 UTCJul 17, 04:39 UTC2h 20m
2026-07-16 ENT5216 - Jul 16, 12:49 UTCJul 16, 14:15 UTC1h 25m
2026-07-16 ENT5217 - Jul 16, 09:20 UTCJul 16, 10:50 UTC1h 30m
2026-07-16 ENT5218 - Jul 16, 06:35 UTCJul 16, 08:10 UTC1h 35m
2026-07-16 ENT5215 - Jul 16, 03:25 UTCJul 16, 04:45 UTC1h 20m
2026-07-15 ENT7040 - Jul 15, 21:25 UTCJul 16, 00:05 UTC2h 40m
2026-07-15 ENT1205 - Jul 15, 17:10 UTCJul 15, 20:00 UTC2h 50m
2026-07-15 ENT1206 - Jul 15, 13:00 UTCJul 15, 16:00 UTC3h 0m
2026-07-15 ENT7043 POZ → AYT Jul 15, 09:10 UTCJul 15, 12:00 UTC2h 50m
2026-07-15 ENT7044 - Jul 15, 05:10 UTCJul 15, 08:00 UTC2h 50m
2026-07-15 ENT7039 WRO → AYT Jul 15, 01:15 UTCJul 15, 03:50 UTC2h 35m
2026-07-14 ENT4904 BZG → WRO Jul 14, 12:35 UTCJul 14, 22:45 UTC10h 9m
2026-07-13 ENT4906 WRO → BZG Jul 13, 23:00 UTCJul 14, 08:40 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-ENT page for operator, model, and routing details .

Mode-S 4891B2 frequently asked

What is Mode-S code 4891B2?
4891B2 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-ENT.
Where is Mode-S 4891B2 registered?
Mode-S code 4891B2 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4891B2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4891B2, octal 22110662, decimal 4,755,890.
What flights does 4891B2 operate?
Mode-S 4891B2 has broadcast 20 distinct callsigns, including ENT6062, ENT6063, ENT6631, ENT6632, ENT5218.