Apparatus

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sensors Mode-S transponder

781046

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-3143 · EMBRAER ERJ-190-100

Hex
781046
Octal
36010106
Decimal
7,868,486
Country
CN
Tail
B-3143
Type
E190
Broadcasting now · callsign GCR7817 · 25,600 ft
Flights observed
49
Distinct callsigns
20
Country
CN
Last broadcast
8h ago

Current position

781046 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 781046 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
GCR7994 Tianjin Airlines 8 2026-07-21
GCR7545 Tianjin Airlines 8 2026-06-24
GCR7993 Tianjin Airlines 7 2026-07-22
GCR7829 - 5 2026-07-24
GCR7830 - 4 2026-07-24
GCR7797 - 2 2026-07-10
GCR7674 - 2 2026-07-14
GCR7930 Tianjin Airlines 1 2026-05-26
GCR7916 - 1 2026-07-21
GCR7858 - 1 2026-07-24
GCR7857 Tianjin Airlines 1 2026-07-24
GCR7832 - 1 2026-04-19
GCR7546 Tianjin Airlines 1 2026-06-19
GCR7438 Tianjin Airlines 1 2026-06-13
GCR6572 Tianjin Airlines 1 2026-04-23
GCR6544 - 1 2026-04-24
GCR6532 Tianjin Airlines 1 2026-06-11
GCR6531 Tianjin Airlines 1 2026-06-11
GCR6414 - 1 2026-07-19
GCR6413 - 1 2026-07-19

Recent flights last 49

DateFlightRouteTakeoffLandingDuration
2026-07-24 GCR7858 - Jul 24, 15:45 UTCJul 24, 16:05 UTC20m
2026-07-24 GCR7857 TSN → XIY Jul 24, 11:40 UTCJul 24, 12:05 UTC25m
2026-07-24 GCR7830 - Jul 24, 05:40 UTCJul 24, 05:50 UTC10m
2026-07-24 GCR7829 - Jul 24, 02:50 UTCJul 24, 03:10 UTC20m
2026-07-22 GCR7993 TSN → ICN Jul 22, 02:40 UTCJul 22, 03:05 UTC25m
2026-07-21 GCR7994 ICN → TSN Jul 21, 13:20 UTCJul 21, 13:50 UTC30m
2026-07-21 GCR7993 - Jul 21, 11:10 UTCJul 21, 11:30 UTC20m
2026-07-21 GCR7916 - Jul 21, 08:25 UTCJul 21, 08:35 UTC10m
2026-07-19 GCR6413 - Jul 19, 14:35 UTCJul 19, 14:55 UTC20m
2026-07-19 GCR6414 - Jul 19, 08:15 UTCJul 19, 08:35 UTC20m
2026-07-14 GCR7674 - Jul 14, 06:45 UTCJul 14, 06:55 UTC10m
2026-07-13 GCR7994 - Jul 13, 04:50 UTCJul 13, 05:10 UTC20m
2026-07-13 GCR7993 - Jul 13, 02:20 UTCJul 13, 02:35 UTC15m
2026-07-12 GCR7994 - Jul 12, 04:55 UTCJul 12, 05:15 UTC20m
2026-07-12 GCR7993 - Jul 12, 02:15 UTCJul 12, 02:35 UTC20m
2026-07-11 GCR7829 - Jul 11, 08:01 UTCJul 11, 12:05 UTC4h 5m
2026-07-10 GCR7797 - Jul 10, 23:50 UTCJul 11, 00:10 UTC20m
2026-07-10 GCR7994 - Jul 10, 04:55 UTCJul 10, 05:15 UTC20m
2026-07-10 GCR7993 - Jul 10, 02:15 UTCJul 10, 02:35 UTC20m
2026-07-09 GCR7994 - Jul 9, 13:05 UTCJul 9, 13:30 UTC25m
2026-07-09 GCR7993 - Jul 9, 11:05 UTCJul 9, 11:25 UTC20m
2026-07-07 GCR7830 - Jul 7, 12:30 UTCJul 7, 12:40 UTC10m
2026-07-05 GCR7674 - Jul 5, 09:50 UTCJul 5, 10:00 UTC10m
2026-06-24 GCR7545 ZYI → SYX Jun 24, 03:15 UTCJun 24, 06:25 UTC3h 10m
2026-06-22 GCR7545 ZYI → SYX Jun 22, 03:05 UTCJun 22, 14:49 UTC11h 45m
2026-06-21 GCR7545 ZYI → SYX Jun 21, 14:50 UTCJun 22, 06:15 UTC15h 25m
2026-06-21 GCR7545 ZYI → SYX Jun 21, 05:54 UTCJun 22, 03:19 UTC21h 25m
2026-06-21 GCR7545 ZYI → SYX Jun 21, 03:34 UTCJun 22, 03:19 UTC23h 45m
2026-06-21 GCR7545 ZYI → SYX Jun 21, 03:14 UTCJun 21, 14:54 UTC11h 40m
2026-06-19 GCR7546 ZYI → XIY Jun 19, 06:10 UTCJun 20, 03:14 UTC21h 5m
2026-06-19 GCR7545 ZYI → SYX Jun 19, 02:59 UTCJun 19, 13:24 UTC10h 25m
2026-06-18 GCR7545 ZYI → SYX Jun 18, 09:45 UTCJun 19, 06:24 UTC20h 39m
2026-06-13 GCR7438 ZYI → HAK Jun 13, 09:00 UTCJun 13, 09:10 UTC10m
2026-06-11 GCR6532 HUZ → HAK Jun 11, 03:30 UTCJun 11, 03:40 UTC10m
2026-06-11 GCR6531 HAK → HUZ Jun 11, 02:10 UTCJun 11, 02:20 UTC10m
2026-06-06 GCR7829 - Jun 6, 08:05 UTCJun 6, 08:25 UTC20m
2026-05-27 GCR7994 ICN → TSN May 27, 05:24 UTCMay 27, 05:49 UTC25m
2026-05-27 GCR7993 TSN → ICN May 27, 02:14 UTCMay 27, 02:34 UTC20m
2026-05-26 GCR7930 KWE → TSN May 26, 01:24 UTCMay 26, 01:44 UTC20m
2026-05-06 GCR7994 ICN → TSN May 6, 04:55 UTCMay 6, 05:10 UTC15m
2026-05-05 GCR7830 - May 5, 10:10 UTCMay 5, 10:25 UTC15m
2026-05-05 GCR7829 - May 5, 07:20 UTCMay 5, 07:50 UTC30m
2026-05-04 GCR7994 ICN → TSN May 4, 04:44 UTCMay 4, 04:55 UTC10m
2026-04-25 GCR7830 - Apr 25, 10:50 UTCApr 25, 11:05 UTC15m
2026-04-25 GCR7829 - Apr 25, 06:00 UTCApr 25, 06:15 UTC15m
2026-04-24 GCR6544 - Apr 24, 10:55 UTCApr 25, 06:15 UTC19h 20m
2026-04-23 GCR6572 KMG → HAK Apr 23, 10:01 UTCApr 23, 10:10 UTC10m
2026-04-20 GCR7797 - Apr 20, 00:30 UTCApr 20, 00:45 UTC15m
2026-04-19 GCR7832 - Apr 19, 15:40 UTCApr 19, 15:55 UTC15m

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-3143 page for operator, model, and routing details .

Mode-S 781046 frequently asked

What is Mode-S code 781046?
781046 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-3143.
Where is Mode-S 781046 registered?
Mode-S code 781046 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781046 broadcasting right now?
Yes. Mode-S 781046 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781046, octal 36010106, decimal 7,868,486.
What flights does 781046 operate?
Mode-S 781046 has broadcast 20 distinct callsigns, including GCR7994, GCR7545, GCR7993, GCR7829, GCR7830.