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 9h ago
Flights observed
59
Distinct callsigns
20
Country
CN
Last broadcast
9h 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
CCA1369 Air China 3 2026-05-27
CCA1343 Air China 3 2026-05-29
CCA1905 Air China 2 2026-05-19
CCA1809 Air China 2 2026-05-29
CCA1722 Air China 2 2026-06-03
CCA1607 Air China 2 2026-05-21
CCA1575 Air China 2 2026-05-21
CCA1571 Air China 2 2026-05-28
CCA1461 Air China 2 2026-06-02
CCA1353 Air China 2 2026-05-30
CCA1324 Air China 2 2026-04-23
CCA9672 Air China 1 2026-05-05
CCA9671 Air China 1 2026-05-04
CCA8212 Air China 1 2026-04-29
CCA4184 Air China 1 2026-05-06
CCA1939 Air China 1 2026-05-31
CCA1937 Air China 1 2026-05-27
CCA1906 Air China 1 2026-05-19
CCA1899 Air China 1 2026-04-22
CCA1813 Air China 1 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 CCA1722 CAN → HGH Jun 3, 09:15 UTCJun 3, 09:55 UTC40m
2026-06-02 CCA1461 PEK → KWE Jun 2, 23:10 UTCJun 2, 23:30 UTC20m
2026-06-02 CCA1292 URC → PEK Jun 2, 16:10 UTCJun 2, 16:25 UTC15m
2026-05-31 CCA1939 PEK → KWL May 31, 00:10 UTCMay 31, 00:30 UTC20m
2026-05-30 CCA1353 PEK → SYX May 30, 06:55 UTCMay 30, 09:55 UTC3h 0m
2026-05-29 CCA1343 PEK → CSX May 29, 22:50 UTCMay 29, 23:10 UTC20m
2026-05-29 CCA1288 URC → PEK May 29, 17:35 UTCMay 29, 17:50 UTC15m
2026-05-29 CCA1287 PEK → URC May 29, 11:30 UTCMay 29, 12:00 UTC30m
2026-05-29 CCA1809 PEK → XMN May 29, 01:45 UTCMay 29, 02:00 UTC15m
2026-05-28 CCA1571 PEK → TAO May 28, 10:40 UTCMay 28, 10:50 UTC10m
2026-05-27 CCA1369 PEK → SYX May 27, 23:45 UTCMay 28, 02:55 UTC3h 10m
2026-05-27 CCA1937 PEK → KWL May 27, 09:30 UTCMay 27, 09:55 UTC25m
2026-05-26 CCA1139 PEK → YCU May 26, 09:55 UTCMay 26, 10:14 UTC20m
2026-05-26 CCA1809 PEK → XMN May 26, 01:49 UTCMay 26, 02:00 UTC10m
2026-05-21 CCA1607 PEK → HRB May 21, 07:30 UTCMay 21, 07:40 UTC10m
2026-05-21 CCA1575 PEK → TAO May 21, 01:05 UTCMay 21, 01:15 UTC10m
2026-05-20 CCA1336 NNG → PEK May 20, 06:45 UTCMay 20, 06:55 UTC10m
2026-05-19 CCA1335 PEK → NNG May 19, 23:25 UTCMay 19, 23:45 UTC20m
2026-05-19 CCA1426 CTU → PEK May 19, 16:00 UTCMay 19, 16:15 UTC15m
2026-05-19 CCA1425 PEK → CTU May 19, 10:20 UTCMay 19, 10:40 UTC20m
2026-05-19 CCA1906 ZUH → PEK May 19, 06:10 UTCMay 19, 06:30 UTC20m
2026-05-19 CCA1905 PEK → ZUH May 19, 03:40 UTCMay 19, 03:55 UTC15m
2026-05-19 CCA1905 PEK → ZUH May 19, 01:00 UTCMay 19, 01:20 UTC20m
2026-05-18 CCA1720 CAN → HGH May 18, 07:45 UTCMay 18, 07:55 UTC10m
2026-05-17 CCA1461 PEK → KWE May 17, 23:00 UTCMay 17, 23:25 UTC25m
2026-05-17 CCA1571 PEK → TAO May 17, 10:30 UTCMay 17, 10:40 UTC10m
2026-05-09 CCA1369 PEK → SYX May 9, 23:40 UTCMay 10, 00:05 UTC25m
2026-05-09 CCA1537 PEK → KHN May 9, 00:40 UTCMay 9, 00:50 UTC10m
2026-05-07 CCA1716 PEK → HGH May 7, 06:00 UTCMay 7, 06:10 UTC10m
2026-05-07 CCA1813 PEK → HFE May 7, 00:05 UTCMay 7, 00:15 UTC10m
2026-05-06 CCA4184 PEK → CTU May 6, 01:15 UTCMay 6, 01:40 UTC25m
2026-05-05 CCA9672 HRB → SHA May 5, 06:05 UTCMay 5, 06:25 UTC20m
2026-05-04 CCA9671 SHA → HRB May 4, 23:40 UTCMay 4, 23:55 UTC15m
2026-05-03 CCA1607 PEK → HRB May 3, 06:50 UTCMay 3, 07:00 UTC10m
2026-05-03 CCA1575 PEK → TAO May 3, 01:10 UTCMay 3, 01:20 UTC10m
2026-05-02 CCA1521 PEK → SHA May 2, 06:55 UTCMay 2, 07:05 UTC10m
2026-05-02 CCA1643 PEK → HRB May 2, 00:25 UTCMay 2, 00:35 UTC10m
2026-05-01 CCA1238 HMI → PEK May 1, 05:05 UTCMay 1, 05:20 UTC15m
2026-04-30 CCA1237 PEK → HMI Apr 30, 22:25 UTCApr 30, 22:40 UTC15m
2026-04-30 CCA1353 PEK → SYX Apr 30, 06:35 UTCApr 30, 06:50 UTC15m
2026-04-29 CCA1131 PEK → HLD Apr 29, 23:50 UTCApr 30, 00:05 UTC15m
2026-04-29 CCA8212 PEK → WUH Apr 29, 09:45 UTCApr 29, 10:05 UTC20m
2026-04-28 CCA1433 PEK → KWE Apr 28, 01:40 UTCApr 28, 11:00 UTC9h 20m
2026-04-27 CCA1722 CAN → HGH Apr 27, 09:05 UTCApr 27, 09:15 UTC10m
2026-04-26 CCA1635 PEK → SHE Apr 26, 11:05 UTCApr 26, 11:15 UTC10m
2026-04-26 CCA1370 SYX → PEK Apr 26, 08:30 UTCApr 26, 08:40 UTC10m
2026-04-25 CCA1369 PEK → SYX Apr 25, 23:45 UTCApr 26, 00:00 UTC15m
2026-04-24 CCA1294 URC → PEK Apr 24, 15:10 UTCApr 24, 15:30 UTC20m
2026-04-24 CCA1293 PEK → URC Apr 24, 06:50 UTCApr 24, 07:10 UTC20m
2026-04-23 CCA1324 ZUH → PEK Apr 23, 17:20 UTCApr 23, 17:30 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-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 9h 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 CCA1369, CCA1343, CCA1905, CCA1809, CCA1722.