Apparatus

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sensors Mode-S transponder

7807B8

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-3183 · EMBRAER ERJ-190-100

Hex
7807B8
Octal
36003670
Decimal
7,866,296
Country
CN
Tail
B-3183
Type
E190
No current signal · last broadcast 3h ago
Flights observed
61
Distinct callsigns
18
Country
CN
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 7807B8.

Country allocation

The ICAO 24-bit address 7807B8 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 18 distinct

Callsign Airline Flights Last seen
GCR6532 Tianjin Airlines 10 2026-07-26
GCR6531 - 8 2026-07-14
GCR6676 Tianjin Airlines 7 2026-06-08
GCR6675 Tianjin Airlines 7 2026-06-08
GCR6534 Tianjin Airlines 4 2026-07-21
GCR7780 - 3 2026-07-21
GCR7779 Tianjin Airlines 3 2026-07-21
GCR6664 Tianjin Airlines 3 2026-04-30
GCR6662 - 3 2026-04-29
GCR6533 Tianjin Airlines 3 2026-07-20
GCR7829 - 2 2026-07-07
GCR6663 Tianjin Airlines 2 2026-04-30
GCR7930 Tianjin Airlines 1 2026-06-29
GCR7929 Tianjin Airlines 1 2026-06-29
GCR7797 - 1 2026-07-07
GCR7635 Tianjin Airlines 1 2026-05-04
GCR7602 Tianjin Airlines 1 2026-06-19
GCR6661 - 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GCR6532 HUZ → HAK Jul 26, 13:45 UTCJul 26, 13:55 UTC10m
2026-07-21 GCR6534 ZUH → HAK Jul 21, 23:50 UTCJul 22, 00:05 UTC15m
2026-07-21 GCR7780 - Jul 21, 15:15 UTCJul 21, 15:25 UTC10m
2026-07-21 GCR7779 HUZ → SYX Jul 21, 11:35 UTCJul 21, 11:45 UTC10m
2026-07-20 GCR7780 - Jul 20, 14:25 UTCJul 20, 14:35 UTC10m
2026-07-20 GCR7779 HUZ → SYX Jul 20, 11:05 UTCJul 20, 11:30 UTC25m
2026-07-20 GCR6533 HAK → ZUH Jul 20, 00:10 UTCJul 20, 00:20 UTC10m
2026-07-19 GCR6532 - Jul 19, 17:05 UTCJul 19, 17:25 UTC20m
2026-07-16 GCR6534 - Jul 16, 23:44 UTCJul 16, 23:59 UTC15m
2026-07-14 GCR6532 - Jul 14, 03:50 UTCJul 14, 04:05 UTC15m
2026-07-14 GCR6531 - Jul 14, 02:05 UTCJul 14, 02:20 UTC15m
2026-07-13 GCR6532 - Jul 13, 13:35 UTCJul 13, 13:55 UTC20m
2026-07-13 GCR6531 - Jul 13, 06:01 UTCJul 13, 06:10 UTC10m
2026-07-12 GCR6532 - Jul 12, 13:05 UTCJul 12, 13:25 UTC20m
2026-07-12 GCR6531 - Jul 12, 05:55 UTCJul 12, 06:05 UTC10m
2026-07-11 GCR6534 - Jul 11, 11:55 UTCJul 11, 12:15 UTC20m
2026-07-11 GCR6533 - Jul 11, 10:40 UTCJul 11, 10:50 UTC10m
2026-07-11 GCR6532 - Jul 11, 03:55 UTCJul 11, 04:05 UTC10m
2026-07-11 GCR6531 - Jul 11, 02:30 UTCJul 11, 02:40 UTC10m
2026-07-09 GCR6534 ZUH → HAK Jul 9, 16:55 UTCJul 9, 17:05 UTC10m
2026-07-09 GCR7780 - Jul 9, 15:30 UTCJul 9, 15:45 UTC15m
2026-07-09 GCR7779 - Jul 9, 12:00 UTCJul 9, 12:10 UTC10m
2026-07-09 GCR6533 - Jul 9, 10:30 UTCJul 9, 10:40 UTC10m
2026-07-09 GCR6532 - Jul 9, 04:35 UTCJul 9, 04:50 UTC15m
2026-07-09 GCR6531 - Jul 9, 02:05 UTCJul 9, 02:15 UTC10m
2026-07-07 GCR7829 - Jul 7, 12:05 UTCJul 7, 12:15 UTC10m
2026-07-07 GCR7797 - Jul 7, 00:05 UTCJul 7, 00:15 UTC10m
2026-07-01 GCR6531 - Jul 1, 06:05 UTCJul 1, 06:15 UTC10m
2026-06-30 GCR7829 - Jun 30, 06:25 UTCJun 30, 06:40 UTC15m
2026-06-29 GCR7930 KWE → TSN Jun 29, 03:25 UTCJun 29, 03:44 UTC20m
2026-06-29 GCR7929 TSN → KWE Jun 29, 01:10 UTCJun 29, 01:29 UTC20m
2026-06-19 GCR7602 HAK → WMT Jun 19, 12:04 UTCJun 19, 12:14 UTC10m
2026-06-18 GCR6532 - Jun 18, 06:05 UTCJun 18, 06:15 UTC10m
2026-06-17 GCR6531 - Jun 17, 09:05 UTCJun 17, 09:15 UTC10m
2026-06-17 GCR6532 - Jun 17, 06:15 UTCJun 17, 06:30 UTC15m
2026-06-08 GCR6676 YIE → HET Jun 8, 09:00 UTCJun 8, 09:10 UTC10m
2026-06-08 GCR6675 HET → YIE Jun 8, 02:25 UTCJun 8, 02:40 UTC15m
2026-06-07 GCR6676 YIE → HET Jun 7, 09:10 UTCJun 7, 09:20 UTC10m
2026-06-07 GCR6675 HET → YIE Jun 7, 02:10 UTCJun 7, 02:25 UTC15m
2026-06-05 GCR6676 YIE → HET Jun 5, 09:15 UTCJun 5, 09:25 UTC10m
2026-06-05 GCR6675 HET → YIE Jun 5, 02:30 UTCJun 5, 02:45 UTC15m
2026-06-03 GCR6676 YIE → HET Jun 3, 11:25 UTCJun 3, 11:45 UTC20m
2026-06-03 GCR6675 HET → YIE Jun 3, 02:20 UTCJun 3, 02:30 UTC10m
2026-05-18 GCR6675 HET → YIE May 18, 02:25 UTCMay 18, 02:35 UTC10m
2026-05-17 GCR6676 YIE → HET May 17, 09:00 UTCMay 17, 09:15 UTC15m
2026-05-11 GCR6532 HUZ → HAK May 11, 12:35 UTCMay 11, 12:55 UTC20m
2026-05-11 GCR6531 HAK → HUZ May 11, 05:55 UTCMay 11, 06:05 UTC10m
2026-05-08 GCR6676 YIE → HET May 8, 14:30 UTCMay 8, 14:40 UTC10m
2026-05-08 GCR6675 HET → YIE May 8, 07:59 UTCMay 8, 08:14 UTC15m
2026-05-06 GCR6676 YIE → HET May 6, 14:40 UTCMay 6, 14:50 UTC10m

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-3183 page for operator, model, and routing details .

Mode-S 7807B8 frequently asked

What is Mode-S code 7807B8?
7807B8 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-3183.
Where is Mode-S 7807B8 registered?
Mode-S code 7807B8 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7807B8 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7807B8, octal 36003670, decimal 7,866,296.
What flights does 7807B8 operate?
Mode-S 7807B8 has broadcast 18 distinct callsigns, including GCR6532, GCR6531, GCR6676, GCR6675, GCR6534.