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sensors Mode-S transponder

7814B3

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1177 · BOEING 757-200

Hex
7814B3
Octal
36012263
Decimal
7,869,619
Country
CN
Tail
B-1177
Type
B752
No current signal · last broadcast Jul 25, 05:20 UTC
Flights observed
76
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 05:20 UTC

Last known position

Most recent position reported by Mode-S 7814B3.

Country allocation

The ICAO 24-bit address 7814B3 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
CSS7109 - 6 2026-07-01
CSS7107 - 6 2026-07-04
CSS7277 - 5 2026-06-30
CSS7110 - 5 2026-07-03
CSS6839 - 5 2026-07-20
CSS7278 - 4 2026-06-29
CSS7204 - 4 2026-07-19
CSS6840 - 4 2026-06-29
CSS7203 - 3 2026-07-19
CSS6812 SF Airlines 3 2026-04-22
CSS272 - 3 2026-06-29
CSS271 - 3 2026-06-29
CSS6814 - 2 2026-07-13
CSS280 SF Airlines 2 2026-07-22
CSS274 SF Airlines 2 2026-07-25
CSS273 SF Airlines 2 2026-07-25
CSS142 SF Airlines 2 2026-07-22
CSS141 - 2 2026-07-21
CSS7410 - 1 2026-07-13
CSS7409 - 1 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CSS274 KIX → TAO Jul 25, 03:55 UTCJul 25, 05:20 UTC1h 25m
2026-07-25 CSS273 TAO → KIX Jul 25, 00:40 UTCJul 25, 02:10 UTC1h 30m
2026-07-22 CSS142 ICN → EHU Jul 22, 14:55 UTCJul 22, 15:30 UTC35m
2026-07-22 CSS280 ICN → YNT Jul 22, 03:15 UTCJul 22, 03:50 UTC35m
2026-07-21 CSS141 - Jul 21, 23:05 UTCJul 21, 23:30 UTC25m
2026-07-20 CSS6839 - Jul 20, 21:00 UTCJul 20, 21:10 UTC10m
2026-07-20 CSS7205 - Jul 20, 17:55 UTCJul 20, 18:30 UTC35m
2026-07-19 CSS7204 - Jul 19, 22:00 UTCJul 19, 22:15 UTC15m
2026-07-19 CSS7203 - Jul 19, 18:50 UTCJul 19, 20:10 UTC1h 20m
2026-07-18 CSS7203 - Jul 18, 23:05 UTCJul 19, 20:10 UTC21h 5m
2026-07-17 CSS7204 - Jul 17, 19:49 UTCJul 17, 20:04 UTC15m
2026-07-17 CSS7409 - Jul 17, 17:44 UTCJul 17, 18:00 UTC15m
2026-07-13 CSS7410 - Jul 13, 19:25 UTCJul 13, 19:35 UTC10m
2026-07-13 CSS6814 - Jul 13, 00:40 UTCJul 13, 00:55 UTC15m
2026-07-12 CSS6814 - Jul 12, 22:15 UTCJul 12, 22:35 UTC20m
2026-07-10 CSS7239 - Jul 10, 21:50 UTCJul 10, 22:05 UTC15m
2026-07-10 CSS274 - Jul 10, 03:15 UTCJul 10, 04:40 UTC1h 25m
2026-07-10 CSS273 - Jul 10, 00:25 UTCJul 10, 01:50 UTC1h 25m
2026-07-06 CSS3015 - Jul 6, 07:55 UTCJul 6, 08:15 UTC20m
2026-07-05 CSS6836 - Jul 5, 21:40 UTCJul 5, 22:15 UTC35m
2026-07-05 CSS7224 - Jul 5, 17:45 UTCJul 5, 17:55 UTC10m
2026-07-04 CSS7107 - Jul 4, 20:40 UTCJul 4, 21:00 UTC20m
2026-07-04 CSS7107 - Jul 4, 18:00 UTCJul 4, 18:25 UTC25m
2026-07-03 CSS7110 - Jul 3, 21:50 UTCJul 3, 22:00 UTC10m
2026-07-03 CSS7107 - Jul 3, 19:05 UTCJul 3, 19:25 UTC20m
2026-07-03 CSS7107 - Jul 3, 16:40 UTCJul 3, 16:50 UTC10m
2026-07-02 CSS7110 - Jul 2, 21:45 UTCJul 2, 22:00 UTC15m
2026-07-02 CSS7107 - Jul 2, 19:05 UTCJul 2, 19:30 UTC25m
2026-07-02 CSS7107 - Jul 2, 16:35 UTCJul 2, 16:50 UTC15m
2026-07-01 CSS7109 - Jul 1, 19:00 UTCJul 1, 19:20 UTC20m
2026-07-01 CSS7109 - Jul 1, 16:35 UTCJul 1, 16:55 UTC20m
2026-06-30 CSS7110 - Jun 30, 21:45 UTCJun 30, 22:00 UTC15m
2026-06-30 CSS7277 - Jun 30, 19:10 UTCJun 30, 19:30 UTC20m
2026-06-29 CSS7278 - Jun 29, 20:30 UTCJun 29, 20:40 UTC10m
2026-06-29 CSS6840 - Jun 29, 18:34 UTCJun 29, 18:49 UTC15m
2026-06-29 CSS272 - Jun 29, 05:40 UTCJun 29, 06:44 UTC1h 5m
2026-06-29 CSS271 - Jun 29, 03:34 UTCJun 29, 04:34 UTC1h 0m
2026-06-27 CSS272 - Jun 27, 06:05 UTCJun 27, 07:04 UTC1h 0m
2026-06-27 CSS271 - Jun 27, 03:55 UTCJun 27, 04:54 UTC1h 0m
2026-06-26 CSS6839 - Jun 26, 21:20 UTCJun 26, 21:35 UTC15m
2026-06-26 CSS7273 - Jun 26, 19:14 UTCJun 26, 19:39 UTC25m
2026-06-23 CSS7278 - Jun 23, 20:40 UTCJun 23, 20:54 UTC15m
2026-06-23 CSS6840 - Jun 23, 19:10 UTCJun 23, 19:19 UTC10m
2026-06-23 CSS272 - Jun 23, 06:09 UTCJun 23, 07:09 UTC1h 0m
2026-06-23 CSS271 - Jun 23, 04:00 UTCJun 23, 05:00 UTC1h 0m
2026-06-22 CSS6839 - Jun 22, 21:30 UTCJun 22, 21:45 UTC15m
2026-06-22 CSS7277 - Jun 22, 19:14 UTCJun 22, 19:29 UTC15m
2026-06-21 CSS7278 - Jun 21, 21:10 UTCJun 21, 21:24 UTC15m
2026-06-21 CSS7277 - Jun 21, 19:24 UTCJun 21, 19:39 UTC15m
2026-06-21 CSS7277 - Jun 21, 18:14 UTCJun 21, 18:44 UTC30m

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-1177 page for operator, model, and routing details .

Mode-S 7814B3 frequently asked

What is Mode-S code 7814B3?
7814B3 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1177.
Where is Mode-S 7814B3 registered?
Mode-S code 7814B3 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7814B3 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 05:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7814B3, octal 36012263, decimal 7,869,619.
What flights does 7814B3 operate?
Mode-S 7814B3 has broadcast 20 distinct callsigns, including CSS7109, CSS7107, CSS7277, CSS7110, CSS6839.