Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

84CEEF

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA27LR · AIRBUS A-321neo

Hex
84CEEF
Octal
41147357
Decimal
8,703,727
Country
JP
Tail
JA27LR
Type
A21N
Broadcasting now · callsign JJP234 · 28,200 ft
Flights observed
247
Distinct callsigns
20
Country
JP
Last broadcast
1h ago

Current position

84CEEF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 84CEEF falls within the block assigned to Japan (JP) by ICAO Annex 10, Volume III. Every aircraft registered in Japan 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
JJP11 Jetstar Japan 29 2026-06-08
JJP12 Jetstar Japan 22 2026-06-10
JJP217 - 19 2026-06-11
JJP153 Jetstar Japan 19 2026-06-12
JJP112 Jetstar Japan 19 2026-06-12
JJP513 Jetstar Japan 17 2026-06-10
JJP512 Jetstar Japan 17 2026-06-10
JJP156 Jetstar Japan 16 2026-06-13
JJP234 Jetstar Japan 14 2026-06-11
JJP113 Jetstar Japan 14 2026-06-13
JJP125 Jetstar Japan 13 2026-06-11
JJP126 Jetstar Japan 12 2026-06-11
JJP331 Jetstar Japan 10 2026-06-12
JJP337 Jetstar Japan 9 2026-06-09
JJP332 Jetstar Japan 6 2026-05-27
JJP336 Jetstar Japan 5 2026-05-17
JJP984 Jetstar Japan 1 2026-05-15
JJP7800 - 1 2026-05-02
JJP528 Jetstar Japan 1 2026-05-15
JJP115 Jetstar Japan 1 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-13 JJP156 CTS → KIX Jun 13, 07:55 UTCJun 13, 09:45 UTC1h 50m
2026-06-13 JJP113 NRT → CTS Jun 13, 05:25 UTCJun 13, 06:45 UTC1h 20m
2026-06-12 JJP331 NRT → OKA Jun 12, 08:55 UTCJun 12, 14:35 UTC5h 40m
2026-06-12 JJP112 CTS → NRT Jun 12, 04:20 UTCJun 12, 05:45 UTC1h 25m
2026-06-12 JJP153 KIX → CTS Jun 12, 01:25 UTCJun 12, 03:05 UTC1h 40m
2026-06-11 JJP217 NRT → KIX Jun 11, 23:00 UTCJun 12, 00:20 UTC1h 20m
2026-06-11 JJP234 KIX → NRT Jun 11, 11:10 UTCJun 11, 12:10 UTC1h 0m
2026-06-11 JJP156 CTS → KIX Jun 11, 07:55 UTCJun 11, 10:05 UTC2h 10m
2026-06-11 JJP113 NRT → CTS Jun 11, 05:25 UTCJun 11, 06:35 UTC1h 10m
2026-06-11 JJP126 CTS → NRT Jun 11, 02:35 UTCJun 11, 04:00 UTC1h 25m
2026-06-11 JJP125 NRT → CTS Jun 11, 00:10 UTCJun 11, 01:30 UTC1h 20m
2026-06-10 JJP12 TPE → NRT Jun 10, 18:50 UTCJun 10, 21:35 UTC2h 45m
2026-06-10 GK11 NRT → TPE Jun 10, 14:00 UTCJun 10, 17:20 UTC3h 20m
2026-06-10 JJP512 FUK → NRT Jun 10, 10:00 UTCJun 10, 11:20 UTC1h 20m
2026-06-10 JJP513 NRT → FUK Jun 10, 07:10 UTCJun 10, 08:40 UTC1h 30m
2026-06-10 JJP112 CTS → NRT Jun 10, 04:15 UTCJun 10, 05:50 UTC1h 35m
2026-06-10 JJP153 KIX → CTS Jun 10, 01:25 UTCJun 10, 02:45 UTC1h 20m
2026-06-09 JJP217 NRT → KIX Jun 9, 23:15 UTCJun 10, 00:30 UTC1h 15m
2026-06-09 JJP337 NRT → OKA Jun 9, 00:05 UTCJun 9, 06:25 UTC6h 20m
2026-06-08 JJP12 TPE → NRT Jun 8, 18:50 UTCJun 8, 21:30 UTC2h 40m
2026-06-08 JJP11 NRT → TPE Jun 8, 13:55 UTCJun 8, 17:05 UTC3h 10m
2026-06-08 JJP512 FUK → NRT Jun 8, 09:45 UTCJun 8, 11:05 UTC1h 20m
2026-06-08 JJP513 NRT → FUK Jun 8, 06:55 UTCJun 8, 08:20 UTC1h 25m
2026-06-08 JJP112 CTS → NRT Jun 8, 04:05 UTCJun 8, 05:25 UTC1h 20m
2026-06-08 JJP153 KIX → CTS Jun 8, 01:30 UTCJun 8, 02:55 UTC1h 25m
2026-06-07 JJP217 NRT → KIX Jun 7, 23:10 UTCJun 8, 00:20 UTC1h 10m
2026-06-07 JJP234 KIX → NRT Jun 7, 11:10 UTCJun 7, 12:10 UTC1h 0m
2026-06-07 JJP156 CTS → KIX Jun 7, 07:50 UTCJun 7, 09:50 UTC2h 0m
2026-06-07 JJP113 NRT → CTS Jun 7, 05:20 UTCJun 7, 06:35 UTC1h 15m
2026-06-07 JJP126 CTS → NRT Jun 7, 02:40 UTCJun 7, 03:55 UTC1h 15m
2026-06-07 JJP125 NRT → CTS Jun 7, 00:05 UTCJun 7, 01:35 UTC1h 30m
2026-06-06 JJP12 TPE → NRT Jun 6, 18:50 UTCJun 6, 21:40 UTC2h 50m
2026-06-06 JJP11 NRT → TPE Jun 6, 17:05 UTCJun 6, 17:24 UTC20m
2026-06-06 JJP11 NRT → TPE Jun 6, 14:14 UTCJun 6, 15:34 UTC1h 20m
2026-06-06 JJP512 FUK → NRT Jun 6, 09:45 UTCJun 6, 11:00 UTC1h 15m
2026-06-06 JJP513 NRT → FUK Jun 6, 06:45 UTCJun 6, 08:10 UTC1h 25m
2026-06-06 JJP112 CTS → NRT Jun 6, 04:10 UTCJun 6, 05:25 UTC1h 15m
2026-06-06 JJP153 KIX → CTS Jun 6, 01:35 UTCJun 6, 03:05 UTC1h 30m
2026-06-05 JJP217 NRT → KIX Jun 5, 23:15 UTCJun 6, 00:25 UTC1h 10m
2026-06-05 JJP331 NRT → OKA Jun 5, 08:45 UTCJun 5, 14:30 UTC5h 45m
2026-06-05 JJP337 NRT → OKA Jun 5, 00:50 UTCJun 5, 07:05 UTC6h 15m
2026-06-04 JJP331 NRT → OKA Jun 4, 07:55 UTCJun 4, 13:20 UTC5h 25m
2026-06-04 JJP337 NRT → OKA Jun 4, 00:45 UTCJun 4, 06:30 UTC5h 45m
2026-06-03 JJP12 TPE → NRT Jun 3, 18:50 UTCJun 3, 21:35 UTC2h 45m
2026-06-03 JJP11 NRT → TPE Jun 3, 17:10 UTCJun 3, 17:30 UTC20m
2026-06-03 JJP11 NRT → TPE Jun 3, 14:15 UTCJun 3, 15:35 UTC1h 20m
2026-06-03 JJP112 CTS → NRT Jun 3, 07:50 UTCJun 3, 09:25 UTC1h 35m
2026-06-03 JJP153 KIX → CTS Jun 3, 01:30 UTCJun 3, 03:00 UTC1h 30m
2026-06-02 JJP217 NRT → KIX Jun 2, 23:10 UTCJun 3, 00:25 UTC1h 15m
2026-06-02 JJP234 KIX → NRT Jun 2, 11:10 UTCJun 2, 12:15 UTC1h 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 JA27LR page for operator, model, and routing details .

Mode-S 84CEEF frequently asked

What is Mode-S code 84CEEF?
84CEEF is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA27LR.
Where is Mode-S 84CEEF registered?
Mode-S code 84CEEF is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84CEEF broadcasting right now?
Yes. Mode-S 84CEEF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 84CEEF, octal 41147357, decimal 8,703,727.
What flights does 84CEEF operate?
Mode-S 84CEEF has broadcast 20 distinct callsigns, including JJP11, JJP12, JJP217, JJP153, JJP112.