Apparatus

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sensors Mode-S transponder

78149D

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1167 · BOEING 787-9 Dreamliner

Hex
78149D
Octal
36012235
Decimal
7,869,597
Country
CN
Tail
B-1167
Type
B789
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
176
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 78149D.

Country allocation

The ICAO 24-bit address 78149D 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
CSN377 China Southern Airlines 21 2026-07-26
CSN6043 China Southern Airlines 15 2026-07-22
CSN378 China Southern Airlines 13 2026-07-26
CSN6044 China Southern Airlines 10 2026-07-22
CSN354 - 8 2026-06-30
CSN668 - 7 2026-07-12
CSN667 - 7 2026-07-12
CSN664 China Southern Airlines 6 2026-05-21
CSN649 - 6 2026-06-27
CSN353 - 6 2026-06-30
CSN3092 - 6 2026-06-26
CSN8069 - 5 2026-06-25
CSN650 - 5 2026-06-27
CSN304 China Southern Airlines 5 2026-05-28
CSN8089 China Southern Airlines 4 2026-05-30
CSN677 - 4 2026-07-16
CSN391 - 4 2026-07-14
CSN320 China Southern Airlines 4 2026-05-25
CSN3081 China Southern Airlines 4 2026-07-24
CSN678 - 3 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN378 MAD → CAN Jul 26, 19:50 UTCJul 26, 21:15 UTC1h 25m
2026-07-26 CSN377 CAN → MAD Jul 26, 09:55 UTCJul 26, 15:30 UTC5h 35m
2026-07-25 CSN377 CAN → MAD Jul 25, 17:20 UTCJul 26, 15:30 UTC22h 11m
2026-07-25 CSN377 CAN → MAD Jul 25, 15:20 UTCJul 26, 15:15 UTC23h 56m
2026-07-25 CSN377 CAN → MAD Jul 25, 15:10 UTCJul 26, 13:15 UTC22h 6m
2026-07-24 CSN633 CAN → NBO Jul 24, 18:00 UTCJul 24, 22:00 UTC4h 0m
2026-07-24 CSN3082 BKK → CAN Jul 24, 09:10 UTCJul 24, 09:40 UTC30m
2026-07-24 CSN3081 CAN → BKK Jul 24, 06:30 UTCJul 24, 07:05 UTC35m
2026-07-22 CSN6044 NBO → CSX Jul 22, 18:10 UTCJul 22, 21:45 UTC3h 35m
2026-07-22 CSN6043 CSX → NBO Jul 22, 03:10 UTCJul 22, 03:20 UTC10m
2026-07-21 CSN6043 CSX → NBO Jul 21, 19:05 UTCJul 21, 22:35 UTC3h 30m
2026-07-20 CSN634 NBO → CAN Jul 20, 15:30 UTCJul 20, 19:15 UTC3h 45m
2026-07-19 CSN633 CAN → NBO Jul 19, 19:05 UTCJul 19, 22:05 UTC3h 0m
2026-07-19 CSN3082 BKK → CAN Jul 19, 09:30 UTCJul 19, 09:40 UTC10m
2026-07-19 CSN3081 CAN → BKK Jul 19, 07:10 UTCJul 19, 07:25 UTC15m
2026-07-17 CSN678 - Jul 17, 13:40 UTCJul 17, 19:45 UTC6h 5m
2026-07-16 CSN677 - Jul 16, 10:45 UTCJul 16, 17:14 UTC6h 30m
2026-07-14 CSN392 - Jul 14, 17:35 UTCJul 14, 18:45 UTC1h 10m
2026-07-14 CSN391 - Jul 14, 14:25 UTCJul 14, 15:40 UTC1h 15m
2026-07-13 CSN378 - Jul 13, 19:20 UTCJul 13, 23:55 UTC4h 35m
2026-07-13 CSN377 - Jul 13, 09:45 UTCJul 13, 15:25 UTC5h 40m
2026-07-12 CSN377 - Jul 12, 11:20 UTCJul 13, 11:00 UTC23h 40m
2026-07-12 CSN668 - Jul 12, 09:35 UTCJul 12, 12:05 UTC2h 30m
2026-07-12 CSN667 - Jul 12, 04:10 UTCJul 12, 07:20 UTC3h 10m
2026-07-10 CSN678 - Jul 10, 13:15 UTCJul 10, 19:20 UTC6h 5m
2026-07-09 CSN677 - Jul 9, 10:25 UTCJul 9, 17:00 UTC6h 35m
2026-07-07 CSN332 - Jul 7, 12:20 UTCJul 7, 18:15 UTC5h 55m
2026-07-06 CSN331 - Jul 6, 21:55 UTCJul 7, 04:10 UTC6h 15m
2026-07-05 CSN668 - Jul 5, 09:15 UTCJul 5, 11:45 UTC2h 30m
2026-07-05 CSN667 - Jul 5, 02:35 UTCJul 5, 05:40 UTC3h 5m
2026-07-04 CSN667 - Jul 4, 18:40 UTCJul 4, 18:50 UTC10m
2026-07-03 CSN6044 - Jul 3, 17:50 UTCJul 3, 21:30 UTC3h 40m
2026-07-02 CSN6043 - Jul 2, 18:55 UTCJul 2, 22:20 UTC3h 25m
2026-07-01 CSN6043 - Jul 1, 21:20 UTCJul 2, 20:40 UTC23h 20m
2026-07-01 CSN6044 - Jul 1, 19:55 UTCJul 2, 19:15 UTC23h 20m
2026-07-01 CSN6044 - Jul 1, 17:55 UTCJul 1, 21:40 UTC3h 45m
2026-06-30 CSN6044 - Jun 30, 21:45 UTCJul 1, 21:15 UTC23h 30m
2026-06-30 CSN6043 - Jun 30, 19:20 UTCJul 1, 18:35 UTC23h 15m
2026-06-30 CSN6043 - Jun 30, 18:55 UTCJun 30, 21:55 UTC3h 0m
2026-06-30 CSN354 - Jun 30, 06:10 UTCJun 30, 09:35 UTC3h 25m
2026-06-30 CSN353 - Jun 30, 03:50 UTCJun 30, 04:20 UTC30m
2026-06-29 CSN354 - Jun 29, 08:50 UTCJun 29, 09:14 UTC25m
2026-06-29 CSN354 - Jun 29, 05:54 UTCJun 29, 06:19 UTC25m
2026-06-29 CSN353 - Jun 29, 01:00 UTCJun 29, 04:04 UTC3h 5m
2026-06-28 CSN354 - Jun 28, 09:39 UTCJun 28, 10:00 UTC20m
2026-06-28 CSN354 - Jun 28, 06:40 UTCJun 28, 07:05 UTC25m
2026-06-28 CSN353 - Jun 28, 04:44 UTCJun 28, 05:09 UTC25m
2026-06-28 CSN353 - Jun 28, 02:10 UTCJun 28, 02:20 UTC10m
2026-06-27 CSN650 - Jun 27, 10:50 UTCJun 27, 13:44 UTC2h 55m
2026-06-27 CSN649 - Jun 27, 00:00 UTCJun 27, 05:59 UTC6h 0m

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-1167 page for operator, model, and routing details .

Mode-S 78149D frequently asked

What is Mode-S code 78149D?
78149D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1167.
Where is Mode-S 78149D registered?
Mode-S code 78149D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78149D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78149D, octal 36012235, decimal 7,869,597.
What flights does 78149D operate?
Mode-S 78149D has broadcast 20 distinct callsigns, including CSN377, CSN6043, CSN378, CSN6044, CSN354.