Apparatus

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sensors Mode-S transponder

780170

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-HNH · BOEING 777-300

Hex
780170
Octal
36000560
Decimal
7,864,688
Country
CN
Tail
B-HNH
Type
B773
No current signal · last broadcast Jul 25, 12:25 UTC
Flights observed
492
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 12:25 UTC

Last known position

Most recent position reported by Mode-S 780170.

Country allocation

The ICAO 24-bit address 780170 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
CPA565 Cathay Pacific 33 2026-07-20
CPA564 Cathay Pacific 32 2026-07-20
CPA930 - 20 2026-07-14
CPA411 Cathay Pacific 19 2026-07-23
CPA798 - 18 2026-07-19
CPA451 Cathay Pacific 18 2026-06-13
CPA450 - 18 2026-07-07
CPA918 Cathay Pacific 17 2026-07-25
CPA410 Cathay Pacific 16 2026-07-23
CPA505 - 15 2026-07-07
CPA303 - 15 2026-06-28
CPA901 - 14 2026-07-14
CPA507 - 14 2026-07-18
CPA719 - 13 2026-07-19
CPA302 - 13 2026-07-15
CPA919 Cathay Pacific 12 2026-07-25
CPA543 Cathay Pacific 11 2026-07-22
CPA974 Cathay Pacific 10 2026-07-22
CPA718 - 10 2026-06-15
CPA542 Cathay Pacific 10 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CPA918 MNL → HKG Jul 25, 12:05 UTCJul 25, 12:20 UTC15m
2026-07-25 CPA918 MNL → HKG Jul 25, 10:40 UTCJul 25, 11:05 UTC25m
2026-07-25 CPA919 HKG → MNL Jul 25, 06:55 UTCJul 25, 08:40 UTC1h 45m
2026-07-24 CPA361 PVG → HKG Jul 24, 11:50 UTCJul 25, 03:10 UTC15h 20m
2026-07-24 CPA421 TPE → HKG Jul 24, 08:40 UTCJul 24, 10:00 UTC1h 20m
2026-07-24 CPA420 HKG → TPE Jul 24, 06:05 UTCJul 24, 07:20 UTC1h 15m
2026-07-23 CPA361 PVG → HKG Jul 23, 12:10 UTCJul 24, 02:50 UTC14h 40m
2026-07-23 CPA411 ICN → HKG Jul 23, 06:40 UTCJul 23, 09:40 UTC3h 0m
2026-07-23 CPA410 HKG → ICN Jul 23, 01:50 UTCJul 23, 04:55 UTC3h 5m
2026-07-22 CPA974 MNL → HKG Jul 22, 22:00 UTCJul 22, 23:35 UTC1h 35m
2026-07-22 CPA913 HKG → MNL Jul 22, 13:10 UTCJul 22, 14:50 UTC1h 40m
2026-07-22 CPA421 TPE → HKG Jul 22, 11:15 UTCJul 22, 11:30 UTC15m
2026-07-22 CPA543 HND → HKG Jul 22, 01:35 UTCJul 22, 05:25 UTC3h 50m
2026-07-21 CPA542 HKG → HND Jul 21, 08:45 UTCJul 21, 12:25 UTC3h 40m
2026-07-21 CPA740 HAN → HKG Jul 21, 05:50 UTCJul 21, 06:30 UTC40m
2026-07-21 CPA741 HKG → HAN Jul 21, 01:20 UTCJul 21, 01:30 UTC10m
2026-07-20 CPA565 TPE → HKG Jul 20, 11:25 UTCJul 20, 12:40 UTC1h 15m
2026-07-20 CPA565 TPE → HKG Jul 20, 07:55 UTCJul 20, 10:05 UTC2h 10m
2026-07-20 CPA564 HKG → TPE Jul 20, 03:55 UTCJul 20, 06:10 UTC2h 15m
2026-07-20 CPA564 HKG → TPE Jul 20, 01:05 UTCJul 20, 02:30 UTC1h 25m
2026-07-19 CPA798 - Jul 19, 21:30 UTCJul 19, 21:40 UTC10m
2026-07-19 CPA798 - Jul 19, 19:15 UTCJul 19, 19:40 UTC25m
2026-07-19 CPA719 - Jul 19, 12:15 UTCJul 19, 12:25 UTC10m
2026-07-19 CPA719 - Jul 19, 08:10 UTCJul 19, 08:25 UTC15m
2026-07-19 CPA740 - Jul 19, 05:55 UTCJul 19, 06:20 UTC25m
2026-07-19 CPA741 HKG → HAN Jul 19, 02:35 UTCJul 19, 02:45 UTC10m
2026-07-19 CPA741 HKG → HAN Jul 19, 01:20 UTCJul 19, 01:35 UTC15m
2026-07-18 CPA507 - Jul 18, 13:00 UTCJul 18, 13:10 UTC10m
2026-07-18 CPA507 - Jul 18, 10:00 UTCJul 18, 12:30 UTC2h 30m
2026-07-18 CPA506 HKG → KIX Jul 18, 04:55 UTCJul 18, 08:15 UTC3h 20m
2026-07-17 CPA362 - Jul 17, 12:04 UTCJul 18, 03:10 UTC15h 6m
2026-07-17 CPA421 - Jul 17, 08:59 UTCJul 17, 10:20 UTC1h 20m
2026-07-17 CPA420 HKG → TPE Jul 17, 06:00 UTCJul 17, 07:50 UTC1h 50m
2026-07-16 CPA521 NRT → HKG Jul 16, 10:10 UTCJul 16, 13:54 UTC3h 45m
2026-07-16 CPA520 - Jul 16, 04:20 UTCJul 16, 08:25 UTC4h 5m
2026-07-15 CPA302 - Jul 15, 13:40 UTCJul 16, 01:35 UTC11h 55m
2026-07-15 CPA421 TPE → HKG Jul 15, 09:55 UTCJul 15, 11:10 UTC1h 15m
2026-07-15 CPA420 HKG → TPE Jul 15, 06:35 UTCJul 15, 08:00 UTC1h 25m
2026-07-14 CPA361 - Jul 14, 11:55 UTCJul 15, 03:05 UTC15h 9m
2026-07-14 CPA930 - Jul 14, 06:00 UTCJul 14, 06:25 UTC25m
2026-07-14 CPA930 - Jul 14, 04:45 UTCJul 14, 05:10 UTC25m
2026-07-14 CPA901 HKG → MNL Jul 14, 01:25 UTCJul 14, 03:00 UTC1h 35m
2026-07-13 CPA507 KIX → HKG Jul 13, 09:10 UTCJul 13, 12:15 UTC3h 5m
2026-07-13 CPA506 - Jul 13, 04:25 UTCJul 13, 07:35 UTC3h 10m
2026-07-13 CPA912 - Jul 13, 01:45 UTCJul 13, 02:01 UTC15m
2026-07-13 CPA912 - Jul 13, 00:25 UTCJul 13, 00:50 UTC25m
2026-07-12 CPA939 HKG → MNL Jul 12, 14:25 UTCJul 12, 16:20 UTC1h 55m
2026-07-12 CPA507 - Jul 12, 11:55 UTCJul 12, 12:10 UTC15m
2026-07-12 CPA507 - Jul 12, 08:55 UTCJul 12, 11:25 UTC2h 30m
2026-07-12 CPA506 - Jul 12, 04:01 UTCJul 12, 06:15 UTC2h 15m

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-HNH page for operator, model, and routing details .

Mode-S 780170 frequently asked

What is Mode-S code 780170?
780170 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-HNH.
Where is Mode-S 780170 registered?
Mode-S code 780170 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780170 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 12:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780170, octal 36000560, decimal 7,864,688.
What flights does 780170 operate?
Mode-S 780170 has broadcast 20 distinct callsigns, including CPA565, CPA564, CPA930, CPA411, CPA798.