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sensors Mode-S transponder

8A0A11

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-BBF · BOEING 737-800

Hex
8A0A11
Octal
42405021
Decimal
9,046,545
Country
ID
Tail
PK-BBF
Type
B738
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
152
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 8A0A11.

Country allocation

The ICAO 24-bit address 8A0A11 falls within the block assigned to Indonesia (ID) by ICAO Annex 10, Volume III. Every aircraft registered in Indonesia 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
SJY598 Sriwijaya Air 38 2026-07-23
SJY599 Sriwijaya Air 37 2026-07-25
SJY185 Sriwijaya Air 18 2026-07-25
SJY073 - 15 2026-07-08
SJY055 - 11 2026-07-08
SJY054 Sriwijaya Air 7 2026-07-24
SJY580 - 5 2026-07-18
SJY072 - 5 2026-07-25
SJY9079 - 2 2026-07-12
SJY581 - 2 2026-07-10
SJY272 Sriwijaya Air 2 2026-07-26
SJY184 - 2 2026-06-27
SJYY598 - 1 2026-05-27
SJY592 - 1 2026-07-08
SJY5272 - 1 2026-07-26
SJY273 Sriwijaya Air 1 2026-07-24
SJY225 Sriwijaya Air 1 2026-06-01
SJY224 Sriwijaya Air 1 2026-06-28
BBL772 - 1 2026-05-21
BBL771 - 1 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SJY5272 - Jul 26, 22:05 UTCJul 26, 22:15 UTC10m
2026-07-26 SJY272 CGK → DPS Jul 26, 11:10 UTCJul 26, 15:30 UTC4h 20m
2026-07-25 SJY599 UPG → CGK Jul 25, 15:35 UTCJul 26, 08:55 UTC17h 21m
2026-07-25 SJY185 PNK → CGK Jul 25, 09:40 UTCJul 25, 10:00 UTC20m
2026-07-25 SJY072 - Jul 25, 02:55 UTCJul 25, 03:10 UTC15m
2026-07-24 SJY054 CGK → TJQ Jul 24, 23:15 UTCJul 24, 23:25 UTC10m
2026-07-24 SJY273 DPS → CGK Jul 24, 11:15 UTCJul 24, 15:45 UTC4h 30m
2026-07-23 SJY598 CGK → UPG Jul 23, 15:35 UTCJul 24, 08:55 UTC17h 20m
2026-07-22 SJY598 CGK → UPG Jul 22, 15:20 UTCJul 23, 10:45 UTC19h 25m
2026-07-21 SJY598 CGK → UPG Jul 21, 15:30 UTCJul 21, 15:55 UTC25m
2026-07-21 SJY599 UPG → CGK Jul 21, 11:25 UTCJul 21, 11:40 UTC15m
2026-07-20 SJY598 CGK → UPG Jul 20, 15:20 UTCJul 20, 15:50 UTC30m
2026-07-20 SJY599 - Jul 20, 08:25 UTCJul 20, 08:40 UTC15m
2026-07-19 SJY598 CGK → UPG Jul 19, 15:40 UTCJul 19, 16:10 UTC30m
2026-07-19 SJY599 - Jul 19, 09:00 UTCJul 19, 09:30 UTC30m
2026-07-18 SJY580 - Jul 18, 08:50 UTCJul 18, 09:10 UTC20m
2026-07-17 SJY598 - Jul 17, 15:29 UTCJul 18, 07:15 UTC15h 46m
2026-07-17 SJY599 - Jul 17, 08:40 UTCJul 17, 08:54 UTC15m
2026-07-16 SJY598 - Jul 16, 15:25 UTCJul 16, 15:45 UTC20m
2026-07-16 SJY599 - Jul 16, 11:15 UTCJul 16, 11:30 UTC15m
2026-07-15 SJY598 - Jul 15, 15:30 UTCJul 15, 15:55 UTC25m
2026-07-15 SJY599 - Jul 15, 09:00 UTCJul 15, 09:15 UTC15m
2026-07-14 SJY598 - Jul 14, 15:15 UTCJul 14, 15:40 UTC25m
2026-07-14 SJY599 - Jul 14, 11:05 UTCJul 14, 11:35 UTC30m
2026-07-13 SJY598 - Jul 13, 15:20 UTCJul 14, 11:35 UTC20h 15m
2026-07-13 SJY599 - Jul 13, 09:25 UTCJul 13, 09:40 UTC15m
2026-07-12 SJY598 - Jul 12, 16:45 UTCJul 12, 17:10 UTC25m
2026-07-12 SJY9079 - Jul 12, 13:10 UTCJul 12, 13:25 UTC15m
2026-07-12 SJY599 UPG → CGK Jul 12, 09:05 UTCJul 12, 09:20 UTC15m
2026-07-11 SJY598 - Jul 11, 15:30 UTCJul 11, 15:50 UTC20m
2026-07-11 SJY599 UPG → CGK Jul 11, 11:50 UTCJul 11, 12:00 UTC10m
2026-07-10 SJY598 - Jul 10, 18:25 UTCJul 10, 18:55 UTC30m
2026-07-10 SJY581 - Jul 10, 08:40 UTCJul 10, 08:55 UTC15m
2026-07-09 SJY598 - Jul 9, 15:35 UTCJul 9, 16:05 UTC30m
2026-07-09 SJY599 UPG → CGK Jul 9, 11:50 UTCJul 9, 12:20 UTC30m
2026-07-08 SJY592 - Jul 8, 14:30 UTCJul 9, 12:20 UTC21h 50m
2026-07-08 SJY185 - Jul 8, 10:30 UTCJul 8, 10:45 UTC15m
2026-07-08 SJY073 - Jul 8, 06:05 UTCJul 8, 06:20 UTC15m
2026-07-08 SJY055 - Jul 8, 01:55 UTCJul 8, 02:10 UTC15m
2026-07-07 SJY185 - Jul 7, 10:45 UTCJul 7, 11:05 UTC20m
2026-07-07 SJY073 - Jul 7, 05:55 UTCJul 7, 06:15 UTC20m
2026-07-07 SJY055 - Jul 7, 01:45 UTCJul 7, 01:55 UTC10m
2026-07-06 SJY054 - Jul 6, 23:25 UTCJul 6, 23:35 UTC10m
2026-07-06 SJY185 - Jul 6, 10:25 UTCJul 6, 10:40 UTC15m
2026-07-06 SJY073 - Jul 6, 05:35 UTCJul 6, 05:50 UTC15m
2026-07-06 SJY055 - Jul 6, 01:30 UTCJul 6, 01:50 UTC20m
2026-07-05 SJY272 - Jul 5, 12:40 UTCJul 5, 16:55 UTC4h 15m
2026-07-05 SJY185 - Jul 5, 11:05 UTCJul 5, 11:15 UTC10m
2026-07-05 SJY073 - Jul 5, 05:40 UTCJul 5, 06:00 UTC20m
2026-07-05 SJY055 - Jul 5, 01:45 UTCJul 5, 02:05 UTC20m

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 PK-BBF page for operator, model, and routing details .

Mode-S 8A0A11 frequently asked

What is Mode-S code 8A0A11?
8A0A11 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-BBF.
Where is Mode-S 8A0A11 registered?
Mode-S code 8A0A11 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0A11 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A0A11, octal 42405021, decimal 9,046,545.
What flights does 8A0A11 operate?
Mode-S 8A0A11 has broadcast 20 distinct callsigns, including SJY598, SJY599, SJY185, SJY073, SJY055.