Apparatus

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sensors Mode-S transponder

0101B9

ICAO 24-bit transponder address · allocated to Egypt

Currently assigned to SU-GEI · BOEING 737-800

Hex
0101B9
Octal
00200671
Decimal
65,977
Country
EG
Tail
SU-GEI
Type
B738
No current signal · last broadcast 19h ago
Flights observed
252
Distinct callsigns
20
Country
EG
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 0101B9.

Country allocation

The ICAO 24-bit address 0101B9 falls within the block assigned to Egypt (EG) by ICAO Annex 10, Volume III. Every aircraft registered in Egypt 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
MSR846 Egyptair 26 2026-07-11
MSR845 - 26 2026-07-11
MSR746 Egyptair 7 2026-05-28
MSR745 Egyptair 7 2026-05-27
MSR028 Egyptair 7 2026-07-11
MSR740 - 6 2026-07-03
MSR739 - 6 2026-07-02
MSR798 Egyptair 5 2026-05-26
MSR797 Egyptair 5 2026-05-26
MSR788 Egyptair 5 2026-05-12
MSR787 Egyptair 5 2026-05-12
MSR719 - 5 2026-06-29
MSR029 - 5 2026-07-11
MSR920 Egyptair 4 2026-06-14
MSR732 - 4 2026-04-14
MSR720 - 4 2026-06-29
MSR921 Egyptair 3 2026-06-14
MSR768 Egyptair 3 2026-05-06
MSR767 Egyptair 3 2026-05-06
MSR736 Egyptair 3 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 MSR664 - Jul 14, 01:55 UTCJul 14, 02:20 UTC25m
2026-07-13 MSR663 CAI → JED Jul 13, 21:50 UTCJul 13, 22:00 UTC10m
2026-07-13 MSR678 - Jul 13, 14:35 UTCJul 13, 18:50 UTC4h 15m
2026-07-12 MSR688 DMM → CAI Jul 12, 14:40 UTCJul 12, 20:45 UTC6h 5m
2026-07-12 MSR651 - Jul 12, 06:55 UTCJul 12, 12:40 UTC5h 45m
2026-07-11 MSR627 - Jul 11, 22:25 UTCJul 12, 03:15 UTC4h 50m
2026-07-11 MSR029 - Jul 11, 20:10 UTCJul 11, 20:35 UTC25m
2026-07-11 MSR028 CAI → SSH Jul 11, 18:10 UTCJul 11, 18:30 UTC20m
2026-07-11 MSR846 ALG → CAI Jul 11, 11:35 UTCJul 11, 15:30 UTC3h 55m
2026-07-11 MSR845 - Jul 11, 07:55 UTCJul 11, 09:40 UTC1h 45m
2026-07-11 MSR845 - Jul 11, 07:15 UTCJul 11, 07:25 UTC10m
2026-07-11 MSR666 - Jul 11, 04:25 UTCJul 11, 04:50 UTC25m
2026-07-10 MSR688 DMM → CAI Jul 10, 15:35 UTCJul 10, 21:00 UTC5h 25m
2026-07-10 MSR687 CAI → DMM Jul 10, 15:05 UTCJul 10, 15:30 UTC25m
2026-07-10 MSR844 - Jul 10, 10:40 UTCJul 10, 12:55 UTC2h 15m
2026-07-10 MSR843 - Jul 10, 06:25 UTCJul 10, 08:45 UTC2h 20m
2026-07-10 MSR021 - Jul 10, 03:05 UTCJul 10, 03:15 UTC10m
2026-07-09 MSR020 - Jul 9, 21:50 UTCJul 9, 22:15 UTC25m
2026-07-09 MSR708 - Jul 9, 14:05 UTCJul 9, 14:50 UTC45m
2026-07-09 MSR707 - Jul 9, 12:10 UTCJul 9, 13:00 UTC50m
2026-07-09 MSR640 - Jul 9, 10:00 UTCJul 9, 10:10 UTC10m
2026-07-07 MSR628 - Jul 7, 22:50 UTCJul 8, 03:25 UTC4h 35m
2026-07-05 MSR675 - Jul 5, 20:45 UTCJul 6, 00:40 UTC3h 55m
2026-07-05 MSR846 ALG → CAI Jul 5, 12:30 UTCJul 5, 14:10 UTC1h 40m
2026-07-05 MSR845 - Jul 5, 07:35 UTCJul 5, 11:00 UTC3h 25m
2026-07-04 MSR628 - Jul 4, 22:45 UTCJul 5, 03:25 UTC4h 40m
2026-07-04 MSR029 - Jul 4, 20:10 UTCJul 4, 20:25 UTC15m
2026-07-04 MSR028 CAI → SSH Jul 4, 18:10 UTCJul 4, 18:25 UTC15m
2026-07-04 MSR846 ALG → CAI Jul 4, 15:05 UTCJul 4, 15:40 UTC35m
2026-07-04 MSR845 - Jul 4, 07:35 UTCJul 4, 15:00 UTC7h 25m
2026-07-03 MSR633 - Jul 3, 17:40 UTCJul 3, 22:05 UTC4h 25m
2026-07-03 MSR846 ALG → CAI Jul 3, 13:25 UTCJul 3, 15:45 UTC2h 20m
2026-07-03 MSR846 ALG → CAI Jul 3, 12:45 UTCJul 3, 12:55 UTC10m
2026-07-03 MSR845 - Jul 3, 08:05 UTCJul 3, 10:40 UTC2h 35m
2026-07-03 MSR740 - Jul 3, 00:50 UTCJul 3, 01:35 UTC45m
2026-07-02 MSR739 - Jul 2, 22:55 UTCJul 2, 23:40 UTC45m
2026-07-02 MSR048 CAI → HRG Jul 2, 18:35 UTCJul 2, 20:55 UTC2h 20m
2026-07-02 MSR845 - Jul 2, 07:15 UTCJul 2, 14:45 UTC7h 30m
2026-07-02 MSR892 - Jul 2, 01:30 UTCJul 2, 03:50 UTC2h 20m
2026-07-01 MSR891 - Jul 1, 20:10 UTCJul 1, 22:40 UTC2h 30m
2026-07-01 MSR845 - Jul 1, 07:35 UTCJul 1, 14:55 UTC7h 20m
2026-07-01 MSR740 - Jul 1, 01:10 UTCJul 1, 02:10 UTC1h 0m
2026-06-30 MSR739 - Jun 30, 23:10 UTCJul 1, 00:05 UTC55m
2026-06-30 MSR048 CAI → HRG Jun 30, 18:25 UTCJun 30, 21:00 UTC2h 35m
2026-06-30 MSR846 ALG → CAI Jun 30, 13:00 UTCJun 30, 16:05 UTC3h 5m
2026-06-30 MSR845 - Jun 30, 08:10 UTCJun 30, 10:35 UTC2h 25m
2026-06-30 MSR1850 - Jun 30, 04:50 UTCJun 30, 05:15 UTC25m
2026-06-29 MSR720 - Jun 29, 06:50 UTCJun 29, 07:34 UTC45m
2026-06-29 MSR719 - Jun 29, 04:39 UTCJun 29, 05:40 UTC1h 0m
2026-06-28 MSR029 - Jun 28, 20:04 UTCJun 28, 20:14 UTC10m

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 SU-GEI page for operator, model, and routing details .

Mode-S 0101B9 frequently asked

What is Mode-S code 0101B9?
0101B9 is an ICAO 24-bit transponder address. Allocated to Egypt. Assigned to SU-GEI.
Where is Mode-S 0101B9 registered?
Mode-S code 0101B9 is allocated to Egypt (EG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0101B9 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0101B9, octal 00200671, decimal 65,977.
What flights does 0101B9 operate?
Mode-S 0101B9 has broadcast 20 distinct callsigns, including MSR846, MSR845, MSR746, MSR745, MSR028.