sensors Mode-S transponder
4952A4
ICAO 24-bit transponder address · allocated to Portugal
Currently assigned to CS-TUD · AIRBUS A-330-900
- Hex
- 4952A4
- Octal
- 22251244
- Decimal
- 4,805,284
- Country
- PT
- Tail
- CS-TUD
- Type
- A339
- Flights observed
- 102
- Distinct callsigns
- 20
- Country
- PT
- Last broadcast
- 52m ago
Current position
Country allocation
The ICAO 24-bit address 4952A4 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 |
|---|---|---|---|
| TAP104 | TAP Portugal | 9 | 2026-05-28 |
| TAP282 | TAP Portugal | 5 | 2026-05-06 |
| TAP118 | TAP Portugal | 5 | 2026-04-17 |
| TAP203 | TAP Portugal | 4 | 2026-04-29 |
| TAP103 | TAP Portugal | 4 | 2026-05-14 |
| TAP89WT | TAP Portugal | 3 | 2026-04-29 |
| TAP281 | TAP Portugal | 3 | 2026-05-05 |
| TAP237M | TAP Portugal | 3 | 2026-05-29 |
| TAP210 | TAP Portugal | 3 | 2026-05-23 |
| TAP209K | TAP Portugal | 3 | 2026-05-22 |
| TAP204A | TAP Portugal | 3 | 2026-04-30 |
| TAP117 | TAP Portugal | 3 | 2026-04-16 |
| TAP089 | TAP Portugal | 3 | 2026-05-19 |
| TAP088 | TAP Portugal | 3 | 2026-05-22 |
| TAP058 | TAP Portugal | 3 | 2026-05-13 |
| TAP011 | TAP Portugal | 3 | 2026-05-25 |
| TAP90EH | TAP Portugal | 2 | 2026-04-29 |
| TAP3178 | - | 2 | 2026-05-19 |
| TAP247 | TAP Portugal | 2 | 2026-05-16 |
| TAP244 | TAP Portugal | 2 | 2026-05-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | TAP23SL | SFO → LIS | May 30, 05:30 UTC | May 30, 07:00 UTC | 1h 30m |
| 2026-05-29 | TAP237M | LIS → SFO | May 29, 08:35 UTC | May 29, 19:50 UTC | 11h 15m |
| 2026-05-28 | TAP104 | CNF → LIS | May 28, 11:05 UTC | May 29, 05:20 UTC | 18h 15m |
| 2026-05-28 | TAP104 | CNF → LIS | May 28, 09:55 UTC | May 29, 05:20 UTC | 19h 25m |
| 2026-05-27 | TAP244 | LIS → RAK | May 27, 23:20 UTC | May 28, 06:35 UTC | 7h 15m |
| 2026-05-27 | TAP243U | LIS → ORD | May 27, 12:30 UTC | May 27, 20:35 UTC | 8h 5m |
| 2026-05-26 | TAP072 | GIG → LIS | May 26, 23:29 UTC | May 27, 08:20 UTC | 8h 51m |
| 2026-05-26 | TAP073 | LIS → GIG | May 26, 11:30 UTC | May 26, 21:04 UTC | 9h 35m |
| 2026-05-25 | TAP011 | LIS → REC | May 25, 17:05 UTC | May 26, 08:50 UTC | 15h 44m |
| 2026-05-24 | TAP028 | FOR → LIS | May 24, 16:50 UTC | May 25, 10:40 UTC | 17h 50m |
| 2026-05-24 | TAP23SL | SFO → LIS | May 24, 03:20 UTC | May 24, 13:40 UTC | 10h 20m |
| 2026-05-23 | TAP237M | LIS → SFO | May 23, 12:40 UTC | May 24, 00:25 UTC | 11h 45m |
| 2026-05-23 | TAP210 | JFK → LIS | May 23, 02:50 UTC | May 23, 08:45 UTC | 5h 55m |
| 2026-05-22 | TAP209K | LIS → JFK | May 22, 16:30 UTC | May 23, 00:10 UTC | 7h 40m |
| 2026-05-22 | TAP088 | GRU → LIS | May 22, 00:30 UTC | May 22, 09:35 UTC | 9h 5m |
| 2026-05-21 | TAP093 | OPO → GRU | May 21, 12:15 UTC | May 21, 22:35 UTC | 10h 20m |
| 2026-05-21 | TAP078 | GIG → OPO | May 21, 00:25 UTC | May 21, 09:25 UTC | 9h 0m |
| 2026-05-20 | TAP077 | OPO → GIG | May 20, 12:05 UTC | May 20, 22:00 UTC | 9h 55m |
| 2026-05-20 | TAP094 | GRU → OPO | May 20, 00:25 UTC | May 20, 09:45 UTC | 9h 21m |
| 2026-05-19 | TAP089 | LIS → GRU | May 19, 11:55 UTC | May 19, 21:50 UTC | 9h 55m |
| 2026-05-19 | TAP3178 | - | May 19, 01:40 UTC | May 19, 08:10 UTC | 6h 30m |
| 2026-05-18 | TAP3178 | LIS → LIS | May 18, 11:20 UTC | May 19, 08:10 UTC | 20h 49m |
| 2026-05-18 | TAP210 | JFK → LIS | May 18, 02:45 UTC | May 18, 08:50 UTC | 6h 5m |
| 2026-05-17 | TAP209K | LIS → JFK | May 17, 16:30 UTC | May 17, 23:45 UTC | 7h 15m |
| 2026-05-17 | TAP250 | LAX → LIS | May 17, 01:25 UTC | May 17, 11:50 UTC | 10h 25m |
| 2026-05-16 | TAP247 | LIS → LAX | May 16, 10:01 UTC | May 16, 22:35 UTC | 12h 35m |
| 2026-05-15 | TAP23PN | LIS → TER | May 15, 10:30 UTC | May 15, 16:25 UTC | 5h 54m |
| 2026-05-14 | TAP104 | CNF → LIS | May 14, 16:35 UTC | May 15, 06:05 UTC | 13h 30m |
| 2026-05-14 | TAP103 | LIS → CNF | May 14, 10:00 UTC | May 15, 06:05 UTC | 20h 5m |
| 2026-05-13 | TAP058 | BSB → LIS | May 13, 11:05 UTC | May 14, 06:05 UTC | 19h 0m |
| 2026-05-13 | TAP058 | BSB → LIS | May 13, 10:25 UTC | May 14, 06:05 UTC | 19h 40m |
| 2026-05-12 | TAP074 | GIG → LIS | May 12, 18:40 UTC | May 13, 03:10 UTC | 8h 30m |
| 2026-05-12 | TAP075 | LIS → GIG | May 12, 07:55 UTC | May 12, 09:05 UTC | 1h 10m |
| 2026-05-11 | TAP226 | MIA → LIS | May 11, 05:40 UTC | May 11, 13:20 UTC | 7h 40m |
| 2026-05-10 | TAP225V | LIS → MIA | May 10, 18:29 UTC | May 11, 03:05 UTC | 8h 35m |
| 2026-05-10 | TAP248 | LIS → ALG | May 10, 01:34 UTC | May 10, 12:15 UTC | 10h 40m |
| 2026-05-09 | TAP247 | LIS → LAX | May 9, 10:00 UTC | May 9, 21:05 UTC | 11h 5m |
| 2026-05-08 | TAP058 | BSB → LIS | May 8, 17:05 UTC | May 9, 06:15 UTC | 13h 10m |
| 2026-05-08 | TAP057 | LIS → BSB | May 8, 10:25 UTC | May 9, 06:15 UTC | 19h 50m |
| 2026-05-07 | TAP074 | GIG → LIS | May 7, 18:50 UTC | May 8, 03:39 UTC | 8h 49m |
| 2026-05-06 | TAP075 | LIS → GIG | May 6, 22:45 UTC | May 7, 08:15 UTC | 9h 30m |
| 2026-05-06 | TAP282 | MPM → LIS | May 6, 15:55 UTC | May 6, 17:20 UTC | 1h 25m |
| 2026-05-05 | TAP282 | MPM → LIS | May 5, 19:05 UTC | May 6, 17:20 UTC | 22h 15m |
| 2026-05-05 | TAP281 | LIS → MPM | May 5, 18:20 UTC | May 6, 17:00 UTC | 22h 40m |
| 2026-05-03 | TAP082 | GRU → LIS | May 3, 18:55 UTC | May 4, 03:40 UTC | 8h 45m |
| 2026-05-02 | TAP087 | LIS → GRU | May 2, 23:00 UTC | May 3, 08:50 UTC | 9h 49m |
| 2026-05-02 | TAP282 | MPM → LIS | May 2, 15:55 UTC | May 2, 17:35 UTC | 1h 40m |
| 2026-05-01 | TAP282 | MPM → LIS | May 1, 19:05 UTC | May 2, 17:35 UTC | 22h 31m |
| 2026-05-01 | TAP281 | LIS → MPM | May 1, 18:30 UTC | May 2, 17:00 UTC | 22h 30m |
| 2026-05-01 | TAP088 | GRU → LIS | May 1, 01:20 UTC | May 1, 10:25 UTC | 9h 5m |
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-TUD page for operator, model, and routing details .