sensors Mode-S transponder
495274
ICAO 24-bit transponder address · allocated to Portugal
Currently assigned to CS-TST · BOEING 767-300
- Hex
- 495274
- Octal
- 22251164
- Decimal
- 4,805,236
- Country
- PT
- Tail
- CS-TST
- Type
- B763
- Flights observed
- 54
- Distinct callsigns
- 20
- Country
- PT
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 495274 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 |
|---|---|---|---|
| MMZ352 | EuroAtlantic Airways | 8 | 2026-05-29 |
| MMZ351 | EuroAtlantic Airways | 8 | 2026-05-29 |
| STP508 | STP Airways | 6 | 2026-05-30 |
| MMZ767P | - | 3 | 2026-04-23 |
| STP507 | STP Airways | 2 | 2026-05-15 |
| RZO3121 | - | 2 | 2026-05-23 |
| MMZ676P | EuroAtlantic Airways | 2 | 2026-04-15 |
| AZU8730 | Azul Brazilian Airlines | 2 | 2026-06-02 |
| SLM994 | Surinam Airways | 1 | 2026-05-13 |
| SLM993 | Surinam Airways | 1 | 2026-05-11 |
| SLM3003 | Surinam Airways | 1 | 2026-05-11 |
| SLM3001 | Surinam Airways | 1 | 2026-05-13 |
| RZO3177 | - | 1 | 2026-05-24 |
| RZO3170 | - | 1 | 2026-05-23 |
| RZO3126 | - | 1 | 2026-05-24 |
| MMZ673 | EuroAtlantic Airways | 1 | 2026-05-10 |
| MMZ671P | EuroAtlantic Airways | 1 | 2026-05-10 |
| MMZ664T | - | 1 | 2026-04-30 |
| MMZ660P | EuroAtlantic Airways | 1 | 2026-05-21 |
| MMZ647 | EuroAtlantic Airways | 1 | 2026-05-21 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | AZU8730 | CNF → MCO | Jun 2, 20:15 UTC | Jun 3, 00:15 UTC | 4h 0m |
| 2026-06-01 | AZU8731 | MCO → CNF | Jun 1, 03:25 UTC | Jun 1, 07:05 UTC | 3h 40m |
| 2026-05-31 | AZU8730 | CNF → MCO | May 31, 20:20 UTC | Jun 1, 00:35 UTC | 4h 15m |
| 2026-05-30 | AZU9600 | BSB → GYN | May 30, 17:55 UTC | May 30, 19:35 UTC | 1h 40m |
| 2026-05-30 | STP508 | TMS → LIS | May 30, 01:05 UTC | May 30, 14:50 UTC | 13h 45m |
| 2026-05-29 | MMZ352 | OXB → LIS | May 29, 14:40 UTC | May 29, 18:25 UTC | 3h 46m |
| 2026-05-29 | MMZ351 | LIS → OXB | May 29, 07:40 UTC | May 29, 11:15 UTC | 3h 35m |
| 2026-05-24 | RZO3126 | - | May 24, 19:55 UTC | May 24, 20:30 UTC | 35m |
| 2026-05-24 | RZO3177 | - | May 24, 13:50 UTC | May 24, 14:30 UTC | 40m |
| 2026-05-23 | RZO3170 | - | May 23, 22:25 UTC | May 23, 23:05 UTC | 40m |
| 2026-05-23 | RZO3121 | - | May 23, 19:00 UTC | May 23, 19:10 UTC | 10m |
| 2026-05-23 | RZO3121 | - | May 23, 17:10 UTC | May 23, 17:50 UTC | 40m |
| 2026-05-22 | STP508 | TMS → LIS | May 22, 23:35 UTC | May 23, 13:45 UTC | 14h 9m |
| 2026-05-22 | MMZ352 | OXB → LIS | May 22, 16:05 UTC | May 22, 19:30 UTC | 3h 25m |
| 2026-05-22 | MMZ351 | LIS → OXB | May 22, 08:55 UTC | May 22, 12:40 UTC | 3h 45m |
| 2026-05-21 | MMZ660P | FRA → LIS | May 21, 20:50 UTC | May 22, 00:00 UTC | 3h 10m |
| 2026-05-21 | MMZ647 | AMS → TNG | May 21, 11:40 UTC | May 21, 13:25 UTC | 1h 45m |
| 2026-05-19 | MMZ623 | ATH → LCA | May 19, 21:55 UTC | May 20, 09:25 UTC | 11h 31m |
| 2026-05-19 | MMZ621 | GBE → LIS | May 19, 17:05 UTC | May 19, 20:30 UTC | 3h 25m |
| 2026-05-18 | MMZ620P | LIS → LEJ | May 18, 20:30 UTC | May 18, 23:15 UTC | 2h 45m |
| 2026-05-16 | STP508 | TMS → LIS | May 16, 12:01 UTC | May 16, 13:35 UTC | 1h 35m |
| 2026-05-15 | STP507 | LIS → TMS | May 15, 23:20 UTC | May 16, 00:40 UTC | 1h 20m |
| 2026-05-15 | MMZ352 | OXB → LIS | May 15, 15:25 UTC | May 15, 19:05 UTC | 3h 40m |
| 2026-05-15 | MMZ351 | LIS → OXB | May 15, 08:35 UTC | May 15, 12:30 UTC | 3h 55m |
| 2026-05-13 | SLM3001 | PBM → OPF | May 13, 12:55 UTC | May 13, 15:45 UTC | 2h 50m |
| 2026-05-13 | SLM994 | PBM → AMS | May 13, 06:10 UTC | May 13, 08:50 UTC | 2h 40m |
| 2026-05-11 | SLM993 | AMS → PBM | May 11, 22:15 UTC | May 11, 22:35 UTC | 19m |
| 2026-05-11 | SLM3003 | AMS → CDG | May 11, 18:15 UTC | May 11, 19:40 UTC | 1h 25m |
| 2026-05-10 | MMZ673 | TFS → YBG | May 10, 17:59 UTC | May 10, 19:09 UTC | 1h 10m |
| 2026-05-10 | MMZ671P | LIS → FRA | May 10, 07:10 UTC | May 10, 09:15 UTC | 2h 5m |
| 2026-05-08 | STP508 | TMS → LIS | May 8, 23:30 UTC | May 9, 13:50 UTC | 14h 20m |
| 2026-05-08 | MMZ352 | OXB → LIS | May 8, 14:35 UTC | May 8, 18:20 UTC | 3h 45m |
| 2026-05-08 | MMZ351 | LIS → OXB | May 8, 07:55 UTC | May 8, 11:44 UTC | 3h 50m |
| 2026-05-07 | MMZ646P | LGW → LIS | May 7, 15:45 UTC | May 7, 18:05 UTC | 2h 20m |
| 2026-05-07 | MMZ645 | - | May 7, 11:40 UTC | May 7, 14:05 UTC | 2h 25m |
| 2026-05-07 | MMZ643 | - | May 7, 07:35 UTC | May 7, 09:50 UTC | 2h 15m |
| 2026-05-06 | MMZ621P | LIS → IAD | May 6, 13:15 UTC | May 6, 15:30 UTC | 2h 15m |
| 2026-05-01 | STP508 | TMS → LIS | May 1, 23:25 UTC | May 2, 14:05 UTC | 14h 41m |
| 2026-05-01 | MMZ352 | OXB → LIS | May 1, 14:55 UTC | May 1, 18:30 UTC | 3h 35m |
| 2026-05-01 | MMZ351 | LIS → OXB | May 1, 07:55 UTC | May 1, 11:40 UTC | 3h 45m |
| 2026-04-30 | MMZ664T | - | Apr 30, 10:35 UTC | Apr 30, 12:45 UTC | 2h 10m |
| 2026-04-24 | STP508 | TMS → LIS | Apr 24, 23:20 UTC | Apr 25, 13:30 UTC | 14h 10m |
| 2026-04-24 | MMZ352 | OXB → LIS | Apr 24, 14:45 UTC | Apr 24, 18:30 UTC | 3h 45m |
| 2026-04-24 | MMZ351 | LIS → OXB | Apr 24, 07:55 UTC | Apr 24, 11:25 UTC | 3h 30m |
| 2026-04-23 | MMZ767P | OPO → LIS | Apr 23, 18:50 UTC | Apr 23, 19:35 UTC | 45m |
| 2026-04-22 | MMZ767P | - | Apr 22, 21:45 UTC | Apr 22, 22:20 UTC | 35m |
| 2026-04-17 | STP507 | LIS → TMS | Apr 17, 23:25 UTC | Apr 18, 14:05 UTC | 14h 40m |
| 2026-04-17 | MMZ352 | - | Apr 17, 17:25 UTC | Apr 17, 18:05 UTC | 40m |
| 2026-04-17 | MMZ352 | - | Apr 17, 14:20 UTC | Apr 17, 14:55 UTC | 34m |
| 2026-04-17 | MMZ351 | LIS → OXB | Apr 17, 10:50 UTC | Apr 17, 11:15 UTC | 25m |
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-TST page for operator, model, and routing details .