Apparatus

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sensors Mode-S transponder

4951CC

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-TNL · AIRBUS A-320

Hex
4951CC
Octal
22250714
Decimal
4,805,068
Country
PT
Tail
CS-TNL
Type
A320
No current signal · last broadcast Jul 26, 20:35 UTC
Flights observed
459
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 20:35 UTC

Last known position

Most recent position reported by Mode-S 4951CC.

Country allocation

The ICAO 24-bit address 4951CC falls within the block assigned to Portugal (PT) by ICAO Annex 10, Volume III. Every aircraft registered in Portugal 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
TAP1702 TAP Portugal 20 2026-06-01
TAP1701 TAP Portugal 20 2026-06-01
TAP72LP - 11 2026-07-24
TAP5AS TAP Portugal 11 2026-07-24
TAP1705 - 11 2026-07-05
TAP31TY - 9 2026-07-17
TAP1328 - 9 2026-07-19
TAP921 TAP Portugal 8 2026-05-14
TAP920 TAP Portugal 8 2026-05-14
TAP1330 - 8 2026-07-17
TAP1329 - 8 2026-07-19
TAP641 - 6 2026-07-18
TAP640 TAP Portugal 6 2026-07-18
TAP35MT TAP Portugal 6 2026-07-19
TAP1708 - 6 2026-07-05
TAP687 - 5 2026-06-28
TAP686 - 5 2026-06-28
TAP453 - 5 2026-07-05
TAP452 - 5 2026-07-05
TAP1938 - 5 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TAP934 LIS → ZRH Jul 26, 18:05 UTCJul 26, 20:30 UTC2h 25m
2026-07-26 TAP56DT HAM → LIS Jul 26, 13:05 UTCJul 26, 16:00 UTC2h 55m
2026-07-26 TAP560 LIS → HAM Jul 26, 07:40 UTCJul 26, 10:45 UTC3h 5m
2026-07-26 TAP1023 MAD → LIS Jul 26, 04:50 UTCJul 26, 05:55 UTC1h 5m
2026-07-25 TAP1022 LIS → MAD Jul 25, 21:15 UTCJul 25, 22:10 UTC55m
2026-07-25 TAP563 HAM → LIS Jul 25, 16:10 UTCJul 25, 19:05 UTC2h 55m
2026-07-25 TAP2HM LIS → HAM Jul 25, 11:50 UTCJul 25, 14:50 UTC3h 0m
2026-07-25 TAP9004 - Jul 25, 02:30 UTCJul 25, 05:45 UTC3h 15m
2026-07-24 TAP9003 DTM → DTM Jul 24, 22:40 UTCJul 25, 01:00 UTC2h 20m
2026-07-24 TAP5AS FRA → LIS Jul 24, 17:55 UTCJul 24, 21:00 UTC3h 5m
2026-07-24 TAP72LP LIS → FRA Jul 24, 13:55 UTCJul 24, 16:25 UTC2h 30m
2026-07-24 TAP1736 PXO → LIS Jul 24, 11:50 UTCJul 24, 12:35 UTC45m
2026-07-24 TAP1735 LIS → PXO Jul 24, 09:55 UTCJul 24, 10:10 UTC15m
2026-07-24 TAP1735 LIS → PXO Jul 24, 08:35 UTCJul 24, 09:25 UTC50m
2026-07-24 TAP8RL FCO → LIS Jul 24, 04:10 UTCJul 24, 07:00 UTC2h 50m
2026-07-23 TAP838Z LIS → FCO Jul 23, 20:00 UTCJul 23, 22:15 UTC2h 15m
2026-07-23 TAP1931 OPO → LIS Jul 23, 17:15 UTCJul 23, 18:05 UTC50m
2026-07-23 TAP1930 LIS → OPO Jul 23, 15:35 UTCJul 23, 16:10 UTC35m
2026-07-23 TAP941 GVA → LIS Jul 23, 11:55 UTCJul 23, 14:20 UTC2h 25m
2026-07-23 TAP40GV LIS → GVA Jul 23, 08:40 UTCJul 23, 10:35 UTC1h 55m
2026-07-23 TAP1023 MAD → LIS Jul 23, 06:05 UTCJul 23, 07:10 UTC1h 5m
2026-07-22 TAP1022 LIS → MAD Jul 22, 21:25 UTCJul 22, 22:15 UTC50m
2026-07-22 TAP563 HAM → LIS Jul 22, 16:05 UTCJul 22, 19:30 UTC3h 25m
2026-07-22 TAP2HM LIS → HAM Jul 22, 11:50 UTCJul 22, 14:45 UTC2h 55m
2026-07-21 TAP931L ZRH → LIS Jul 21, 11:50 UTCJul 21, 14:25 UTC2h 35m
2026-07-21 TAP93ZR LIS → ZRH Jul 21, 08:05 UTCJul 21, 10:20 UTC2h 15m
2026-07-21 TAP1908 FAO → LIS Jul 21, 05:15 UTCJul 21, 05:45 UTC30m
2026-07-20 TAP1907 LIS → FAO Jul 20, 22:15 UTCJul 20, 22:50 UTC35m
2026-07-20 TAP863Y VCE → LIS Jul 20, 18:05 UTCJul 20, 21:00 UTC2h 55m
2026-07-20 TAP86VR - Jul 20, 14:25 UTCJul 20, 16:45 UTC2h 20m
2026-07-20 TAP1335 LGW → LIS Jul 20, 10:05 UTCJul 20, 12:20 UTC2h 15m
2026-07-20 TAP34A LIS → LGW Jul 20, 06:25 UTCJul 20, 08:35 UTC2h 10m
2026-07-19 TAP35MT OPO → LIS Jul 19, 23:05 UTCJul 19, 23:45 UTC40m
2026-07-19 TAP1827 OPO → OPO Jul 19, 16:10 UTCJul 19, 22:10 UTC6h 0m
2026-07-19 TAP1329 LGW → OPO Jul 19, 13:00 UTCJul 19, 14:55 UTC1h 55m
2026-07-19 TAP1328 OPO → LGW Jul 19, 08:35 UTCJul 19, 10:25 UTC1h 50m
2026-07-19 TAP1922 LIS → OPO Jul 19, 06:55 UTCJul 19, 07:30 UTC35m
2026-07-18 TAP5AS FRA → LIS Jul 18, 18:55 UTCJul 18, 21:55 UTC3h 0m
2026-07-18 TAP72LP LIS → FRA Jul 18, 14:45 UTCJul 18, 17:10 UTC2h 25m
2026-07-18 TAP641 - Jul 18, 10:15 UTCJul 18, 12:55 UTC2h 40m
2026-07-18 TAP640 LIS → BRU Jul 18, 06:30 UTCJul 18, 08:50 UTC2h 20m
2026-07-18 TAP1937 OPO → LIS Jul 18, 04:20 UTCJul 18, 05:00 UTC40m
2026-07-17 TAP31TY LGW → OPO Jul 17, 20:35 UTCJul 17, 22:29 UTC1h 55m
2026-07-17 TAP1330 OPO → LGW Jul 17, 17:20 UTCJul 17, 19:05 UTC1h 45m
2026-07-17 TAP9014 OPO → OPO Jul 17, 06:20 UTCJul 17, 15:35 UTC9h 15m
2026-07-16 TAP36RC LIS → OPO Jul 16, 21:50 UTCJul 16, 22:19 UTC30m
2026-07-16 TAP871 - Jul 16, 17:25 UTCJul 16, 20:25 UTC3h 0m
2026-07-16 TAP870 - Jul 16, 12:40 UTCJul 16, 15:00 UTC2h 20m
2026-07-16 TAP647 BRU → LIS Jul 16, 04:15 UTCJul 16, 06:55 UTC2h 40m
2026-07-15 TAP46RU LIS → BRU Jul 15, 19:30 UTCJul 15, 22:10 UTC2h 40m

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 CS-TNL page for operator, model, and routing details .

Mode-S 4951CC frequently asked

What is Mode-S code 4951CC?
4951CC is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-TNL.
Where is Mode-S 4951CC registered?
Mode-S code 4951CC is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4951CC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4951CC, octal 22250714, decimal 4,805,068.
What flights does 4951CC operate?
Mode-S 4951CC has broadcast 20 distinct callsigns, including TAP1702, TAP1701, TAP72LP, TAP5AS, TAP1705.