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 4h ago
Flights observed
400
Distinct callsigns
20
Country
PT
Last broadcast
4h ago

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
TAP1705 - 11 2026-07-05
TAP72LP - 9 2026-07-02
TAP5AS - 9 2026-07-02
TAP921 TAP Portugal 8 2026-05-14
TAP920 TAP Portugal 8 2026-05-14
TAP31TY TAP Portugal 8 2026-05-14
TAP1328 - 8 2026-07-06
TAP1330 TAP Portugal 7 2026-05-14
TAP1329 - 7 2026-06-28
TAP1708 - 6 2026-07-05
TAP687 - 5 2026-06-28
TAP686 - 5 2026-06-28
TAP641 - 5 2026-06-25
TAP640 - 5 2026-06-25
TAP453 - 5 2026-07-05
TAP452 - 5 2026-07-05
TAP35MT - 5 2026-06-28
TAP1938 - 5 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 TAP36RC LIS → OPO Jul 13, 21:25 UTCJul 13, 22:05 UTC40m
2026-07-13 TAP53ED - Jul 13, 16:55 UTCJul 13, 20:25 UTC3h 30m
2026-07-13 TAP532B LIS → BER Jul 13, 12:15 UTCJul 13, 15:20 UTC3h 5m
2026-07-13 TAP68JP - Jul 13, 08:45 UTCJul 13, 10:10 UTC1h 25m
2026-07-13 TAP1685 - Jul 13, 05:55 UTCJul 13, 06:35 UTC40m
2026-07-12 TAP437X ORY → LIS Jul 12, 18:40 UTCJul 12, 20:50 UTC2h 10m
2026-07-12 TAP436 LIS → ORY Jul 12, 15:20 UTCJul 12, 17:10 UTC1h 50m
2026-07-12 TAP56DP HAM → LIS Jul 12, 04:10 UTCJul 12, 07:31 UTC3h 20m
2026-07-11 TAP564C LIS → HAM Jul 11, 17:25 UTCJul 11, 20:15 UTC2h 50m
2026-07-11 TAP56DT HAM → LIS Jul 11, 11:55 UTCJul 11, 14:55 UTC3h 0m
2026-07-11 TAP560 LIS → HAM Jul 11, 07:40 UTCJul 11, 10:35 UTC2h 55m
2026-07-11 TAP1023 - Jul 11, 04:55 UTCJul 11, 06:01 UTC1h 5m
2026-07-10 TAP1022 - Jul 10, 21:20 UTCJul 10, 22:10 UTC50m
2026-07-10 TAP9257 LGW → LIS Jul 10, 11:20 UTCJul 10, 13:40 UTC2h 20m
2026-07-06 TAP1328 OPO → LGW Jul 6, 08:35 UTCJul 6, 10:25 UTC1h 50m
2026-07-05 TAP1708 - Jul 5, 23:10 UTCJul 6, 00:05 UTC55m
2026-07-05 TAP1708 - Jul 5, 22:35 UTCJul 5, 22:40 UTC5m
2026-07-05 TAP1705 - Jul 5, 19:55 UTCJul 5, 21:00 UTC1h 5m
2026-07-05 TAP5RP ORY → OPO Jul 5, 16:20 UTCJul 5, 18:05 UTC1h 45m
2026-07-05 TAP454 OPO → ORY Jul 5, 12:25 UTCJul 5, 14:15 UTC1h 50m
2026-07-05 TAP453 ORY → OPO Jul 5, 08:05 UTCJul 5, 09:55 UTC1h 50m
2026-07-05 TAP452 OPO → ORY Jul 5, 05:10 UTCJul 5, 07:00 UTC1h 50m
2026-07-04 TAP9015 OPO → OPO Jul 4, 14:05 UTCJul 4, 23:05 UTC9h 0m
2026-07-04 TAP453 ORY → OPO Jul 4, 08:05 UTCJul 4, 09:50 UTC1h 45m
2026-07-04 TAP452 OPO → ORY Jul 4, 05:10 UTCJul 4, 06:55 UTC1h 45m
2026-07-03 TAP1938 LIS → OPO Jul 3, 23:10 UTCJul 3, 23:45 UTC35m
2026-07-03 TAP1243 PRG → LIS Jul 3, 18:50 UTCJul 3, 21:55 UTC3h 5m
2026-07-03 TAP1242 LIS → PRG Jul 3, 14:50 UTCJul 3, 17:45 UTC2h 55m
2026-07-03 TAP823 MXP → LIS Jul 3, 10:30 UTCJul 3, 12:50 UTC2h 20m
2026-07-03 TAP22MX LIS → MXP Jul 3, 06:50 UTCJul 3, 09:15 UTC2h 25m
2026-07-02 TAP5AS FRA → LIS Jul 2, 18:40 UTCJul 2, 21:20 UTC2h 40m
2026-07-02 TAP72LP LIS → FRA Jul 2, 14:15 UTCJul 2, 17:10 UTC2h 55m
2026-07-01 TAP76EN - Jul 1, 17:20 UTCJul 1, 21:00 UTC3h 40m
2026-07-01 TAP764 LIS → OSL Jul 1, 12:20 UTCJul 1, 16:10 UTC3h 50m
2026-07-01 TAP1925 OPO → LIS Jul 1, 10:15 UTCJul 1, 10:55 UTC40m
2026-07-01 TAP1924 LIS → OPO Jul 1, 08:40 UTCJul 1, 09:15 UTC35m
2026-07-01 TAP575 FRA → LIS Jul 1, 04:25 UTCJul 1, 07:05 UTC2h 40m
2026-06-30 TAP57LK - Jun 30, 18:00 UTCJun 30, 20:25 UTC2h 25m
2026-06-30 TAP571 FRA → LIS Jun 30, 11:50 UTCJun 30, 14:30 UTC2h 40m
2026-06-30 TAP7AB LIS → FRA Jun 30, 07:40 UTCJun 30, 10:10 UTC2h 30m
2026-06-29 TAP5AS FRA → LIS Jun 29, 18:10 UTCJun 29, 20:44 UTC2h 35m
2026-06-29 TAP72LP LIS → FRA Jun 29, 13:54 UTCJun 29, 16:29 UTC2h 35m
2026-06-29 TAP43JD ORY → LIS Jun 29, 10:15 UTCJun 29, 12:20 UTC2h 5m
2026-06-29 TAP43PA LIS → ORY Jun 29, 06:59 UTCJun 29, 09:10 UTC2h 10m
2026-06-28 TAP35MT - Jun 28, 22:24 UTCJun 28, 22:59 UTC35m
2026-06-28 TAP687 LUX → OPO Jun 28, 18:55 UTCJun 28, 21:14 UTC2h 20m
2026-06-28 TAP686 - Jun 28, 15:09 UTCJun 28, 17:10 UTC2h 0m
2026-06-28 TAP1329 LGW → OPO Jun 28, 11:25 UTCJun 28, 13:29 UTC2h 5m
2026-06-28 TAP1328 - Jun 28, 08:25 UTCJun 28, 10:10 UTC1h 45m
2026-06-28 TAP9027 - Jun 28, 01:55 UTCJun 28, 05:45 UTC3h 50m

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 4h ago.
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, TAP1705, TAP72LP, TAP5AS.