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sensors Mode-S transponder

4B181B

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JDJ · AIRBUS A-320neo

Hex
4B181B
Octal
22614033
Decimal
4,921,371
Country
CH
Tail
HB-JDJ
Type
A20N
Broadcasting now · callsign EDW53PC · 29,650 ft
Flights observed
542
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 21:55 UTC

Current position

4B181B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B181B falls within the block assigned to Switzerland (CH) by ICAO Annex 10, Volume III. Every aircraft registered in Switzerland 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
SWR5YV Swiss International Air Lines 11 2026-07-25
SWR1886 Swiss International Air Lines 11 2026-07-26
SWR98G Swiss International Air Lines 10 2026-07-25
SWR533X Swiss International Air Lines 10 2026-06-15
SWR49L - 10 2026-07-19
SWR3PT Swiss International Air Lines 10 2026-06-15
SWR39L Swiss International Air Lines 10 2026-07-24
SWR115Y Swiss International Air Lines 10 2026-07-24
SWR21M - 9 2026-07-18
SWR1PM Swiss International Air Lines 9 2026-07-22
SWR1KV Swiss International Air Lines 9 2026-07-21
SWR8PZ - 8 2026-06-17
SWR438A - 8 2026-07-18
SWR336L Swiss International Air Lines 8 2026-07-24
SWR9TP Swiss International Air Lines 7 2026-07-25
SWR756C Swiss International Air Lines 7 2026-07-23
SWR5AX - 7 2026-07-24
SWR5AM Swiss International Air Lines 7 2026-07-21
SWR52Y Swiss International Air Lines 7 2026-07-23
SWR3ZK Swiss International Air Lines 7 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWR1886 ZRH → OTP Jul 26, 20:05 UTCJul 26, 21:55 UTC1h 50m
2026-07-26 SWR42V CDG → ZRH Jul 26, 18:05 UTCJul 26, 18:55 UTC50m
2026-07-26 SWR1DE ZRH → CDG Jul 26, 15:50 UTCJul 26, 16:45 UTC55m
2026-07-26 SWR868L BEG → ZRH Jul 26, 13:10 UTCJul 26, 14:35 UTC1h 25m
2026-07-26 SWR4WG ZRH → BEG Jul 26, 10:30 UTCJul 26, 11:55 UTC1h 25m
2026-07-26 SWR2GE CDG → ZRH Jul 26, 08:35 UTCJul 26, 09:20 UTC45m
2026-07-26 SWR3PE ZRH → CDG Jul 26, 06:05 UTCJul 26, 07:00 UTC56m
2026-07-25 SWR9TP GVA → ZRH Jul 25, 18:35 UTCJul 25, 19:20 UTC45m
2026-07-25 SWR3ZK ZRH → GVA Jul 25, 16:55 UTCJul 25, 17:25 UTC30m
2026-07-25 SWR98G OTP → ZRH Jul 25, 13:35 UTCJul 25, 15:35 UTC2h 0m
2026-07-25 SWR5YV ZRH → NCE Jul 25, 10:30 UTCJul 25, 12:20 UTC1h 50m
2026-07-25 EDW399L CTA → ZRH Jul 25, 07:05 UTCJul 25, 09:10 UTC2h 5m
2026-07-25 EDW398E ZRH → CTA Jul 25, 04:15 UTCJul 25, 05:45 UTC1h 30m
2026-07-24 SWR39L LHR → ZRH Jul 24, 19:30 UTCJul 24, 20:50 UTC1h 20m
2026-07-24 SWR115Y ZRH → LHR Jul 24, 16:55 UTCJul 24, 18:10 UTC1h 15m
2026-07-24 SWR5AX VLC → ZRH Jul 24, 13:20 UTCJul 24, 15:05 UTC1h 45m
2026-07-24 SWR336L ZRH → VLC Jul 24, 10:20 UTCJul 24, 12:10 UTC1h 50m
2026-07-24 SWR5PT HAM → ZRH Jul 24, 07:55 UTCJul 24, 09:00 UTC1h 5m
2026-07-24 SWR433Y ZRH → HAM Jul 24, 05:10 UTCJul 24, 06:20 UTC1h 10m
2026-07-23 SWR1LK FRA → ZRH Jul 23, 19:20 UTCJul 23, 19:55 UTC35m
2026-07-23 SWR4ET ZRH → FRA Jul 23, 17:20 UTCJul 23, 18:05 UTC45m
2026-07-23 SWR98G OTP → ZRH Jul 23, 13:20 UTCJul 23, 15:25 UTC2h 5m
2026-07-23 SWR5YV ZRH → NCE Jul 23, 10:20 UTCJul 23, 12:10 UTC1h 50m
2026-07-23 SWR52Y BRU → ZRH Jul 23, 08:20 UTCJul 23, 09:15 UTC55m
2026-07-23 SWR756C ZRH → BRU Jul 23, 05:45 UTCJul 23, 06:45 UTC1h 0m
2026-07-22 SWR1LK FRA → ZRH Jul 22, 19:05 UTCJul 22, 19:40 UTC35m
2026-07-22 SWR4ET ZRH → FRA Jul 22, 17:10 UTCJul 22, 17:50 UTC40m
2026-07-22 SWR2XH AGP → ZRH Jul 22, 11:30 UTCJul 22, 13:35 UTC2h 5m
2026-07-22 SWR1PM ARN → ZRH Jul 22, 04:20 UTCJul 22, 10:25 UTC6h 5m
2026-07-21 SWR1KV ZRH → ARN Jul 21, 19:45 UTCJul 21, 21:55 UTC2h 10m
2026-07-21 SWR1ZB ATH → ZRH Jul 21, 14:40 UTCJul 21, 17:20 UTC2h 40m
2026-07-21 SWR5AM ZRH → ATH Jul 21, 10:40 UTCJul 21, 12:50 UTC2h 10m
2026-07-21 SWR52Y BRU → ZRH Jul 21, 08:25 UTCJul 21, 09:10 UTC45m
2026-07-21 SWR756C ZRH → BRU Jul 21, 05:50 UTCJul 21, 06:45 UTC55m
2026-07-20 SWR5TV OPO → ZRH Jul 20, 18:45 UTCJul 20, 20:50 UTC2h 5m
2026-07-20 SWR82L ZRH → OPO Jul 20, 15:15 UTCJul 20, 17:40 UTC2h 25m
2026-07-20 SWR98F SKG → ZRH Jul 20, 10:40 UTCJul 20, 12:55 UTC2h 15m
2026-07-20 SWR79B ZRH → SKG Jul 20, 07:35 UTCJul 20, 09:30 UTC1h 55m
2026-07-20 SWR8AD CPH → ZRH Jul 20, 04:45 UTCJul 20, 06:05 UTC1h 20m
2026-07-19 SWR44X ZRH → CPH Jul 19, 20:40 UTCJul 19, 22:05 UTC1h 25m
2026-07-19 SWR49K CPH → ZRH Jul 19, 16:55 UTCJul 19, 18:20 UTC1h 25m
2026-07-19 SWR96V ZRH → CPH Jul 19, 14:30 UTCJul 19, 15:50 UTC1h 20m
2026-07-19 SWR2023 MAD → ZRH Jul 19, 11:10 UTCJul 19, 12:50 UTC1h 40m
2026-07-19 SWR2022 ZRH → MAD Jul 19, 07:35 UTCJul 19, 09:35 UTC2h 0m
2026-07-19 SWR49L - Jul 19, 03:40 UTCJul 19, 05:55 UTC2h 15m
2026-07-18 SWR1886 ZRH → OTP Jul 18, 20:45 UTCJul 18, 22:30 UTC1h 45m
2026-07-18 SWR438A - Jul 18, 17:00 UTCJul 18, 18:05 UTC1h 5m
2026-07-18 SWR21M ZRH → LHR Jul 18, 14:10 UTCJul 18, 15:35 UTC1h 25m
2026-07-18 SWR2WX CPH → ZRH Jul 18, 08:05 UTCJul 18, 09:30 UTC1h 25m
2026-07-18 SWR193T ZRH → CPH Jul 18, 05:25 UTCJul 18, 06:50 UTC1h 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 HB-JDJ page for operator, model, and routing details .

Mode-S 4B181B frequently asked

What is Mode-S code 4B181B?
4B181B is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JDJ.
Where is Mode-S 4B181B registered?
Mode-S code 4B181B is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B181B broadcasting right now?
Yes. Mode-S 4B181B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B181B, octal 22614033, decimal 4,921,371.
What flights does 4B181B operate?
Mode-S 4B181B has broadcast 20 distinct callsigns, including SWR5YV, SWR1886, SWR98G, SWR533X, SWR49L.