Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78021C

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LIF · BOEING 747-400

Hex
78021C
Octal
36001034
Decimal
7,864,860
Country
CN
Tail
B-LIF
Type
B744
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
348
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S 78021C.

Country allocation

The ICAO 24-bit address 78021C falls within the block assigned to China (CN) by ICAO Annex 10, Volume III. Every aircraft registered in China 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
CPA015 Cathay Pacific 17 2026-07-26
CPA2074 Cathay Pacific 15 2026-07-24
CPA006 - 15 2026-07-25
CPA005 - 13 2026-05-30
CPA3244 Cathay Pacific 12 2026-07-20
CPA049 - 12 2026-07-18
CPA048 Cathay Pacific 12 2026-07-18
CPA3144 - 10 2026-07-02
CPA3348 Cathay Pacific 8 2026-07-19
CPA3245 Cathay Pacific 8 2026-07-20
CPA2073 Cathay Pacific 8 2026-07-24
CPA2049 Cathay Pacific 8 2026-07-20
CPA2048 Cathay Pacific 8 2026-07-20
CPA3342 - 6 2026-07-15
CPA3296 - 6 2026-07-04
CPA2097 - 6 2026-06-30
CPA3255 - 5 2026-07-09
CPA3241 - 5 2026-07-15
CPA3035 Cathay Pacific 5 2026-06-06
CPA3018 - 5 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CPA043 HKG → DEL Jul 26, 12:40 UTCJul 26, 22:00 UTC9h 20m
2026-07-26 CPA043 HKG → DEL Jul 26, 11:55 UTCJul 26, 12:05 UTC10m
2026-07-26 CPA015 NRT → TPE Jul 26, 06:50 UTCJul 26, 07:00 UTC10m
2026-07-26 CPA015 NRT → TPE Jul 26, 05:25 UTCJul 26, 06:15 UTC50m
2026-07-26 CPA015 NRT → TPE Jul 26, 00:05 UTCJul 26, 03:00 UTC2h 55m
2026-07-25 CPA006 HKG → NRT Jul 25, 17:20 UTCJul 25, 21:20 UTC4h 0m
2026-07-24 CPA051 CGO → HKG Jul 24, 20:30 UTCJul 25, 03:30 UTC7h 0m
2026-07-24 CPA2074 SIN → PEN Jul 24, 17:35 UTCJul 24, 17:55 UTC20m
2026-07-24 CPA2074 SIN → PEN Jul 24, 12:45 UTCJul 24, 12:55 UTC10m
2026-07-24 CPA2074 SIN → PEN Jul 24, 08:00 UTCJul 24, 08:55 UTC55m
2026-07-24 CPA2073 PNH → HKG Jul 24, 05:35 UTCJul 24, 06:05 UTC30m
2026-07-24 CPA2073 PNH → HKG Jul 24, 03:00 UTCJul 24, 03:10 UTC10m
2026-07-23 CPA035 ICN → HKG Jul 23, 21:05 UTCJul 24, 00:10 UTC3h 5m
2026-07-23 CPA035 ICN → HKG Jul 23, 17:35 UTCJul 23, 19:00 UTC1h 25m
2026-07-23 CPA036 HKG → KIX Jul 23, 11:50 UTCJul 23, 14:55 UTC3h 5m
2026-07-23 CPA015 NRT → TPE Jul 23, 07:25 UTCJul 23, 08:40 UTC1h 15m
2026-07-23 CPA015D NRT → TPE Jul 23, 04:50 UTCJul 23, 05:15 UTC25m
2026-07-23 CPA015D NRT → TPE Jul 23, 02:20 UTCJul 23, 03:35 UTC1h 15m
2026-07-22 CPA006 - Jul 22, 19:20 UTCJul 22, 23:15 UTC3h 55m
2026-07-21 CPA035 ICN → HKG Jul 21, 13:45 UTCJul 21, 16:45 UTC3h 0m
2026-07-21 CPA035 KIX → ICN Jul 21, 09:50 UTCJul 21, 11:10 UTC1h 20m
2026-07-21 CPA036 HKG → KIX Jul 21, 04:30 UTCJul 21, 07:50 UTC3h 20m
2026-07-20 CPA3244 DEL → HKG Jul 20, 22:55 UTCJul 20, 23:20 UTC25m
2026-07-20 CPA3244 DEL → HKG Jul 20, 18:30 UTCJul 20, 21:10 UTC2h 40m
2026-07-20 CPA3245 SGN → HKG Jul 20, 10:45 UTCJul 20, 16:05 UTC5h 20m
2026-07-20 CPA2048 HAN → HKG Jul 20, 05:15 UTCJul 20, 05:55 UTC40m
2026-07-20 CPA2048 HAN → HKG Jul 20, 04:25 UTCJul 20, 04:35 UTC10m
2026-07-20 CPA2049 HKG → HAN Jul 20, 01:25 UTCJul 20, 01:50 UTC25m
2026-07-20 CPA2049 HKG → HAN Jul 20, 00:30 UTCJul 20, 00:40 UTC10m
2026-07-19 CPA3348 CGK → HAN Jul 19, 17:00 UTCJul 19, 17:35 UTC35m
2026-07-19 CPA3348 CGK → HAN Jul 19, 16:05 UTCJul 19, 16:15 UTC10m
2026-07-19 CPA3348 CGK → HAN Jul 19, 08:30 UTCJul 19, 12:20 UTC3h 50m
2026-07-19 CPA3249 SGN → HKG Jul 19, 06:35 UTCJul 19, 06:55 UTC20m
2026-07-19 - - Jul 19, 02:45 UTCJul 19, 03:00 UTC15m
2026-07-18 CPA048 HAN → HKG Jul 18, 18:30 UTCJul 18, 19:05 UTC35m
2026-07-18 CPA048 HAN → HKG Jul 18, 17:35 UTCJul 18, 17:45 UTC10m
2026-07-18 CPA048 HAN → HKG Jul 18, 13:40 UTCJul 18, 15:10 UTC1h 30m
2026-07-18 CPA049 - Jul 18, 07:40 UTCJul 18, 11:05 UTC3h 25m
2026-07-17 CPA050 HKG → PVG Jul 17, 22:10 UTCJul 18, 04:50 UTC6h 41m
2026-07-17 CPA2074 SIN → PEN Jul 17, 19:15 UTCJul 17, 19:35 UTC20m
2026-07-17 CPA2074 SIN → PEN Jul 17, 14:10 UTCJul 17, 14:20 UTC10m
2026-07-17 CPA2074 SIN → PEN Jul 17, 10:50 UTCJul 17, 11:45 UTC55m
2026-07-17 CPA2073 PNH → HKG Jul 17, 07:35 UTCJul 17, 08:15 UTC40m
2026-07-17 CPA2073 PNH → HKG Jul 17, 04:44 UTCJul 17, 04:59 UTC15m
2026-07-17 CPA2044 - Jul 17, 00:35 UTCJul 17, 01:00 UTC25m
2026-07-16 CPA2047 - Jul 16, 14:45 UTCJul 16, 22:35 UTC7h 50m
2026-07-16 CPA2047 - Jul 16, 12:44 UTCJul 16, 13:00 UTC15m
2026-07-15 CPA3254 HKG → HKG Jul 15, 21:25 UTCJul 16, 07:15 UTC9h 50m
2026-07-15 CPA3342 - Jul 15, 17:40 UTCJul 15, 17:50 UTC10m
2026-07-15 CPA3342 - Jul 15, 09:40 UTCJul 15, 11:35 UTC1h 55m

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 B-LIF page for operator, model, and routing details .

Mode-S 78021C frequently asked

What is Mode-S code 78021C?
78021C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LIF.
Where is Mode-S 78021C registered?
Mode-S code 78021C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78021C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78021C, octal 36001034, decimal 7,864,860.
What flights does 78021C operate?
Mode-S 78021C has broadcast 20 distinct callsigns, including CPA015, CPA2074, CPA006, CPA005, CPA3244.