Apparatus

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sensors Mode-S transponder

7817F6

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30C5 · AIRBUS A-321neo

Hex
7817F6
Octal
36013766
Decimal
7,870,454
Country
CN
Tail
B-30C5
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
125
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7817F6.

Country allocation

The ICAO 24-bit address 7817F6 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
CCA1343 - 5 2026-07-08
CCA1461 - 4 2026-07-04
CCA1369 Air China 4 2026-06-14
CCA1353 - 4 2026-07-04
CCA1238 - 4 2026-07-08
CCA1237 Air China 4 2026-07-08
CCA1433 - 3 2026-07-16
CCA1294 Air China 3 2026-06-10
CCA1905 Air China 2 2026-05-19
CCA1899 - 2 2026-06-30
CCA1809 Air China 2 2026-05-29
CCA1722 Air China 2 2026-06-03
CCA1716 Air China 2 2026-06-06
CCA1643 Air China 2 2026-06-10
CCA1635 - 2 2026-07-02
CCA1607 Air China 2 2026-05-21
CCA1575 Air China 2 2026-05-21
CCA1571 Air China 2 2026-05-28
CCA1370 Air China 2 2026-06-14
CCA1361 - 2 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CCA894 FRU → PEK Jul 17, 20:20 UTCJul 17, 20:40 UTC20m
2026-07-17 CCA893 PEK → FRU Jul 17, 09:35 UTCJul 17, 09:55 UTC20m
2026-07-17 CCA9844 - Jul 17, 05:10 UTCJul 17, 05:25 UTC15m
2026-07-16 CCA9843 - Jul 16, 22:45 UTCJul 16, 23:05 UTC20m
2026-07-16 CCA1433 - Jul 16, 02:00 UTCJul 16, 02:25 UTC25m
2026-07-14 CCA1133 - Jul 14, 23:05 UTCJul 14, 23:20 UTC15m
2026-07-13 CCA1621 - Jul 13, 22:55 UTCJul 13, 23:05 UTC10m
2026-07-13 CCA1288 - Jul 13, 16:35 UTCJul 13, 16:50 UTC15m
2026-07-13 CCA1287 - Jul 13, 10:35 UTCJul 13, 10:45 UTC10m
2026-07-13 CCA1361 - Jul 13, 00:45 UTCJul 13, 01:05 UTC20m
2026-07-12 CCA1577 - Jul 12, 09:25 UTCJul 12, 09:35 UTC10m
2026-07-11 CCA1444 - Jul 11, 19:55 UTCJul 11, 20:10 UTC15m
2026-07-11 CCA1312 - Jul 11, 08:45 UTCJul 11, 08:55 UTC10m
2026-07-11 CCA1311 - Jul 11, 01:30 UTCJul 11, 01:55 UTC25m
2026-07-10 CCA1913 - Jul 10, 07:20 UTCJul 10, 07:40 UTC20m
2026-07-09 CCA1344 - Jul 9, 04:25 UTCJul 9, 04:40 UTC15m
2026-07-08 CCA1343 - Jul 8, 23:00 UTCJul 8, 23:20 UTC20m
2026-07-08 CCA1238 - Jul 8, 07:20 UTCJul 8, 07:35 UTC15m
2026-07-08 CCA1237 PEK → HMI Jul 8, 00:10 UTCJul 8, 00:25 UTC15m
2026-07-07 CCA1533 - Jul 7, 10:45 UTCJul 7, 11:05 UTC20m
2026-07-06 CCA1825 - Jul 6, 23:25 UTCJul 6, 23:35 UTC10m
2026-07-06 CCA1647 - Jul 6, 12:00 UTCJul 6, 12:10 UTC10m
2026-07-06 CCA1554 - Jul 6, 04:15 UTCJul 6, 04:25 UTC10m
2026-07-05 CCA1544 - Jul 5, 08:40 UTCJul 5, 08:50 UTC10m
2026-07-04 CCA1461 - Jul 4, 23:20 UTCJul 4, 23:45 UTC25m
2026-07-04 CCA1353 - Jul 4, 06:40 UTCJul 4, 07:00 UTC20m
2026-07-03 CCA1343 - Jul 3, 23:10 UTCJul 3, 23:35 UTC25m
2026-07-03 CCA1266 - Jul 3, 17:35 UTCJul 3, 17:55 UTC20m
2026-07-03 CCA1265 - Jul 3, 11:15 UTCJul 3, 11:45 UTC30m
2026-07-03 CCA1434 - Jul 3, 09:00 UTCJul 3, 09:10 UTC10m
2026-07-03 CCA1433 - Jul 3, 02:30 UTCJul 3, 02:55 UTC25m
2026-07-02 CCA1635 - Jul 2, 11:10 UTCJul 2, 11:30 UTC20m
2026-07-02 CCA1362 - Jul 2, 08:45 UTCJul 2, 09:00 UTC15m
2026-07-02 CCA1361 - Jul 2, 00:30 UTCJul 2, 03:20 UTC2h 50m
2026-07-01 CCA1235 - Jul 1, 09:00 UTCJul 1, 09:20 UTC20m
2026-06-30 CCA1461 - Jun 30, 23:10 UTCJun 30, 23:30 UTC20m
2026-06-30 CCA1363 - Jun 30, 07:35 UTCJun 30, 08:00 UTC25m
2026-06-30 CCA1899 - Jun 30, 00:14 UTCJun 30, 00:25 UTC10m
2026-06-29 CCA1811 - Jun 29, 09:50 UTCJun 29, 10:00 UTC10m
2026-06-28 CCA1266 - Jun 28, 17:19 UTCJun 28, 17:39 UTC20m
2026-06-28 CCA1265 - Jun 28, 10:44 UTCJun 28, 11:09 UTC25m
2026-06-28 CCA1252 - Jun 28, 08:09 UTCJun 28, 08:25 UTC15m
2026-06-27 CCA1251 - Jun 27, 23:50 UTCJun 28, 00:09 UTC20m
2026-06-27 CCA1292 - Jun 27, 16:35 UTCJun 27, 16:59 UTC25m
2026-06-27 CCA1291 - Jun 27, 07:59 UTCJun 27, 08:20 UTC20m
2026-06-27 CCA1406 - Jun 27, 05:59 UTCJun 27, 06:09 UTC10m
2026-06-26 CCA1405 PEK → CTU Jun 26, 23:49 UTCJun 27, 00:14 UTC25m
2026-06-26 CCA1463 PEK → KWE Jun 26, 08:30 UTCJun 26, 08:50 UTC20m
2026-06-14 CCA1370 SYX → PEK Jun 14, 04:50 UTCJun 14, 05:00 UTC10m
2026-06-14 CCA1369 PEK → SYX Jun 14, 02:10 UTCJun 14, 02:35 UTC25m

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-30C5 page for operator, model, and routing details .

Mode-S 7817F6 frequently asked

What is Mode-S code 7817F6?
7817F6 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30C5.
Where is Mode-S 7817F6 registered?
Mode-S code 7817F6 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7817F6 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7817F6, octal 36013766, decimal 7,870,454.
What flights does 7817F6 operate?
Mode-S 7817F6 has broadcast 20 distinct callsigns, including CCA1343, CCA1461, CCA1369, CCA1353, CCA1238.