Apparatus

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sensors Mode-S transponder

485A81

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-TFN · BOEING 737 MAX 8

Hex
485A81
Octal
22055201
Decimal
4,741,761
Country
NL
Tail
PH-TFN
Type
B38M
No current signal · last broadcast Jul 26, 20:05 UTC
Flights observed
276
Distinct callsigns
20
Country
NL
Last broadcast
Jul 26, 20:05 UTC

Last known position

Most recent position reported by Mode-S 485A81.

Country allocation

The ICAO 24-bit address 485A81 falls within the block assigned to Netherlands (NL) by ICAO Annex 10, Volume III. Every aircraft registered in Netherlands 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
TFL15D - 11 2026-04-23
TFL90G Arkefly 9 2026-07-24
TFL6BH Arkefly 9 2026-06-23
TFL95X - 8 2026-07-25
TFL75X Arkefly 8 2026-04-20
TFL46D - 7 2026-07-13
TFL25M - 7 2026-07-13
TFL1HA - 7 2026-07-25
TFL69C - 6 2026-04-22
TFL27K - 6 2026-04-22
TFL8VL - 5 2026-07-06
TFL6CK - 5 2026-04-18
TFL4YE Arkefly 5 2026-07-26
TFL4LX - 5 2026-07-23
TFL9GT Arkefly 4 2026-07-19
TFL8MT - 4 2026-04-23
TFL5PV - 4 2026-06-26
TFL5ED - 4 2026-04-17
TFL57M - 4 2026-07-13
TFL3WH - 4 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TFL4YE AMS → PDL Jul 26, 05:30 UTCJul 26, 20:05 UTC14h 36m
2026-07-25 TFL62X - Jul 25, 20:30 UTCJul 26, 00:10 UTC3h 40m
2026-07-25 TFL4DM AMS → RHO Jul 25, 15:50 UTCJul 25, 19:05 UTC3h 15m
2026-07-25 TFL1HA - Jul 25, 10:40 UTCJul 25, 14:10 UTC3h 30m
2026-07-25 TFL95X - Jul 25, 09:20 UTCJul 25, 09:25 UTC5m
2026-07-25 TFL95X - Jul 25, 05:55 UTCJul 25, 08:35 UTC2h 40m
2026-07-24 TFL90G AMS → BVC Jul 24, 05:45 UTCJul 24, 19:50 UTC14h 5m
2026-07-23 TFL14D TFS → AMS Jul 23, 20:35 UTCJul 24, 00:10 UTC3h 35m
2026-07-23 TFL4LX - Jul 23, 14:40 UTCJul 23, 19:00 UTC4h 20m
2026-07-23 TFL3LD CFU → AMS Jul 23, 10:10 UTCJul 23, 12:45 UTC2h 35m
2026-07-23 TFL6GE - Jul 23, 06:10 UTCJul 23, 08:10 UTC2h 0m
2026-07-22 TFL3AN - Jul 22, 15:35 UTCJul 22, 17:50 UTC2h 15m
2026-07-22 TFL3JK AMS → TIV Jul 22, 12:05 UTCJul 22, 13:50 UTC1h 45m
2026-07-22 TFL38M - Jul 22, 04:05 UTCJul 22, 10:25 UTC6h 20m
2026-07-21 TFL90G - Jul 21, 05:40 UTCJul 21, 19:45 UTC14h 5m
2026-07-20 TFL4KA AOK → AMS Jul 20, 10:25 UTCJul 20, 13:50 UTC3h 25m
2026-07-20 TFL32N AMS → AOK Jul 20, 05:50 UTCJul 20, 08:50 UTC3h 0m
2026-07-19 TFL3BC - Jul 19, 20:15 UTCJul 19, 23:35 UTC3h 20m
2026-07-19 TFL4GD - Jul 19, 16:00 UTCJul 19, 18:55 UTC2h 55m
2026-07-19 TFL13K DLM → AMS Jul 19, 10:35 UTCJul 19, 14:00 UTC3h 25m
2026-07-19 TFL9GT AMS → DLM Jul 19, 06:00 UTCJul 19, 09:10 UTC3h 10m
2026-07-18 TFL14D - Jul 18, 19:20 UTCJul 18, 22:50 UTC3h 30m
2026-07-18 TFL4LX - Jul 18, 16:30 UTCJul 18, 17:45 UTC1h 15m
2026-07-18 TFL4LX - Jul 18, 13:25 UTCJul 18, 16:25 UTC3h 0m
2026-07-18 TFL7XC - Jul 18, 09:25 UTCJul 18, 11:35 UTC2h 10m
2026-07-18 TFL8WM - Jul 18, 05:35 UTCJul 18, 07:25 UTC1h 50m
2026-07-17 TFL9TK AYT → AMS Jul 17, 20:29 UTCJul 18, 00:15 UTC3h 45m
2026-07-17 TFL28N AMS → AYT Jul 17, 15:20 UTCJul 17, 18:40 UTC3h 20m
2026-07-16 TFL14D - Jul 16, 20:29 UTCJul 17, 00:04 UTC3h 35m
2026-07-16 TFL4LX - Jul 16, 14:20 UTCJul 16, 18:34 UTC4h 15m
2026-07-16 TFL3LD - Jul 16, 09:55 UTCJul 16, 12:30 UTC2h 35m
2026-07-16 TFL6GE - Jul 16, 06:15 UTCJul 16, 08:15 UTC2h 0m
2026-07-15 TFL63A - Jul 15, 20:40 UTCJul 16, 00:20 UTC3h 40m
2026-07-15 TFL2KC - Jul 15, 15:15 UTCJul 15, 18:15 UTC3h 0m
2026-07-15 TFL1GN RHO → AMS Jul 15, 10:00 UTCJul 15, 13:35 UTC3h 35m
2026-07-15 TFL5ME - Jul 15, 05:35 UTCJul 15, 08:35 UTC3h 0m
2026-07-14 TFL14G FUE → AMS Jul 14, 19:50 UTCJul 14, 23:10 UTC3h 19m
2026-07-14 TFL33T AMS → FUE Jul 14, 14:05 UTCJul 14, 18:10 UTC4h 5m
2026-07-14 TFL16T - Jul 14, 08:40 UTCJul 14, 12:15 UTC3h 35m
2026-07-14 TFL5CN - Jul 14, 04:15 UTCJul 14, 07:20 UTC3h 5m
2026-07-13 TFL25M - Jul 13, 16:05 UTCJul 13, 19:05 UTC3h 0m
2026-07-13 TFL3WH - Jul 13, 12:15 UTCJul 13, 15:00 UTC2h 45m
2026-07-13 TFL57M - Jul 13, 07:50 UTCJul 13, 10:45 UTC2h 55m
2026-07-13 TFL46D - Jul 13, 04:05 UTCJul 13, 06:45 UTC2h 40m
2026-07-12 TFL86T - Jul 12, 20:55 UTCJul 12, 23:00 UTC2h 5m
2026-07-12 TFL9LK AMS → PMI Jul 12, 17:30 UTCJul 12, 19:40 UTC2h 10m
2026-07-12 TFL79B - Jul 12, 12:15 UTCJul 12, 15:45 UTC3h 30m
2026-07-12 TFL50G - Jul 12, 06:10 UTCJul 12, 10:15 UTC4h 5m
2026-07-11 TFL38C IBZ → AMS Jul 11, 08:15 UTCJul 11, 10:25 UTC2h 10m
2026-07-11 TFL3AW - Jul 11, 04:55 UTCJul 11, 07:10 UTC2h 15m

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 PH-TFN page for operator, model, and routing details .

Mode-S 485A81 frequently asked

What is Mode-S code 485A81?
485A81 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-TFN.
Where is Mode-S 485A81 registered?
Mode-S code 485A81 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 485A81 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 485A81, octal 22055201, decimal 4,741,761.
What flights does 485A81 operate?
Mode-S 485A81 has broadcast 20 distinct callsigns, including TFL15D, TFL90G, TFL6BH, TFL95X, TFL75X.