sensors Mode-S transponder

484C9B

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-HXM · BOEING 737-800

Hex
484C9B
Octal
22046233
Decimal
4,738,203
Country
NL
Tail
PH-HXM
Type
B738
No current signal · last broadcast 8h ago
Flights observed
198
Distinct callsigns
20
Country
NL
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 484C9B.

Country allocation

The ICAO 24-bit address 484C9B 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 TRA46G BCN → RTM May 29, 18:05 UTCMay 29, 20:30 UTC2h 25m
2026-05-29 TRA27L EIN → LIS May 29, 14:25 UTCMay 29, 16:55 UTC2h 31m
2026-05-29 TRA6710 ATH → EIN May 29, 10:20 UTCMay 29, 13:15 UTC2h 55m
2026-05-29 TRA6709 EIN → ATH May 29, 05:45 UTCMay 29, 08:35 UTC2h 50m
2026-05-28 TRA9Q JTR → AMS May 28, 17:20 UTCMay 28, 20:45 UTC3h 25m
2026-05-28 TRA4J VLC → RTM May 28, 13:10 UTCMay 28, 16:05 UTC2h 55m
2026-05-28 TRA4M GVA → RTM May 28, 09:25 UTCMay 28, 10:00 UTC35m
2026-05-28 TRA4M GVA → RTM May 28, 08:15 UTCMay 28, 09:20 UTC1h 5m
2026-05-28 TRA2T GRO → AMS May 28, 05:10 UTCMay 28, 06:45 UTC1h 35m
2026-05-27 TRA7E RTM → TFS May 27, 18:20 UTCMay 27, 20:45 UTC2h 25m
2026-05-27 TRA3N AMS → LPA May 27, 14:30 UTCMay 27, 17:05 UTC2h 35m
2026-05-27 TRA46G BCN → RTM May 27, 09:55 UTCMay 27, 12:20 UTC2h 25m
2026-05-27 TRA27L EIN → LIS May 27, 05:49 UTCMay 27, 08:25 UTC2h 36m
2026-05-26 TRA8B RTM → LIS May 26, 17:15 UTCMay 26, 19:50 UTC2h 35m
2026-05-26 TRA79X ALC → BRU May 26, 13:29 UTCMay 26, 16:10 UTC2h 40m
2026-05-26 TRA66B - May 26, 09:19 UTCMay 26, 11:24 UTC2h 5m
2026-05-26 TRA86L EIN → PMI May 26, 06:10 UTCMay 26, 08:15 UTC2h 5m
2026-05-25 TRA14E EIN → NCE May 25, 18:30 UTCMay 25, 20:24 UTC1h 55m
2026-05-25 TRA6513 EIN → IBZ May 25, 15:30 UTCMay 25, 17:35 UTC2h 5m
2026-05-25 TRA34P AMS → BRI May 25, 12:50 UTCMay 25, 13:55 UTC1h 5m
2026-05-25 TRA33T EIN → PRG May 25, 10:55 UTCMay 25, 11:55 UTC1h 0m
2026-05-25 TRA67E BCN → EIN May 25, 08:05 UTCMay 25, 09:50 UTC1h 45m
2026-05-25 TRA44E EIN → BCN May 25, 05:05 UTCMay 25, 06:50 UTC1h 45m
2026-05-24 TRA6L ACE → AMS May 24, 10:30 UTCMay 24, 13:55 UTC3h 25m
2026-05-24 TRA94R - May 24, 05:50 UTCMay 24, 08:55 UTC3h 5m
2026-05-23 TRA6P DBV → RTM May 23, 17:00 UTCMay 23, 21:00 UTC4h 1m
2026-05-23 TRA42L NAP → AMS May 23, 11:35 UTCMay 23, 15:35 UTC4h 0m
2026-05-23 TRA14E EIN → NCE May 23, 08:20 UTCMay 23, 10:25 UTC2h 5m
2026-05-23 TRA19V FAO → RTM May 23, 05:05 UTCMay 23, 07:15 UTC2h 10m
2026-05-22 TRA58N EIN → AGP May 22, 17:55 UTCMay 22, 20:25 UTC2h 30m
2026-05-22 TRA72N RTM → NDR May 22, 14:05 UTCMay 22, 16:40 UTC2h 35m
2026-05-22 TRA54C SVQ → RTM May 22, 10:00 UTCMay 22, 12:20 UTC2h 20m
2026-05-22 TRA853Z RTM → SVQ May 22, 06:10 UTCMay 22, 08:40 UTC2h 30m
2026-05-21 TRA4T FAO → RTM May 21, 18:10 UTCMay 21, 20:35 UTC2h 25m
2026-05-21 TRA71J RTM → AGP May 21, 14:05 UTCMay 21, 16:40 UTC2h 35m
2026-05-21 TRA5612 CTA → RTM May 21, 08:55 UTCMay 21, 11:30 UTC2h 35m
2026-05-21 TRA16P SVQ → EIN May 21, 05:20 UTCMay 21, 07:40 UTC2h 20m
2026-05-20 TRA54C SVQ → RTM May 20, 17:50 UTCMay 20, 20:15 UTC2h 25m
2026-05-20 TRA853Z RTM → SVQ May 20, 14:15 UTCMay 20, 16:40 UTC2h 25m
2026-05-20 TRA87Y LIS → RTM May 20, 10:50 UTCMay 20, 13:10 UTC2h 20m
2026-05-20 TRA9H AMS → VLC May 20, 05:20 UTCMay 20, 08:00 UTC2h 40m
2026-05-19 TRA39U ALC → RTM May 19, 17:25 UTCMay 19, 19:35 UTC2h 10m
2026-05-19 TRA83R RTM → ALC May 19, 14:05 UTCMay 19, 16:15 UTC2h 10m
2026-05-19 TRA43Y FAO → RTM May 19, 09:45 UTCMay 19, 12:15 UTC2h 30m
2026-05-19 TRA32J RTM → FAO May 19, 05:55 UTCMay 19, 08:40 UTC2h 45m
2026-05-18 TRA6038 FCO → RTM May 18, 18:50 UTCMay 18, 20:40 UTC1h 50m
2026-05-18 TRA6037 RTM → FCO May 18, 15:55 UTCMay 18, 17:30 UTC1h 35m
2026-05-18 TRA6082 EGC → RTM May 18, 13:25 UTCMay 18, 14:45 UTC1h 20m
2026-05-18 TRA85N NCE → AMS May 18, 11:25 UTCMay 18, 12:35 UTC1h 10m
2026-05-18 TRA98Q AMS → SVQ May 18, 08:05 UTCMay 18, 10:25 UTC2h 20m

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-HXM page for operator, model, and routing details .

Mode-S 484C9B frequently asked

What is Mode-S code 484C9B?
484C9B is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-HXM.
Where is Mode-S 484C9B registered?
Mode-S code 484C9B is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 484C9B broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 484C9B, octal 22046233, decimal 4,738,203.
What flights does 484C9B operate?
Mode-S 484C9B has broadcast 20 distinct callsigns, including TRA79X, TRA94R, TRA8B, TRA7Y, TRA7E.