Apparatus

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sensors Mode-S transponder

34754C

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-OBY · AIRBUS A-321neo

Hex
34754C
Octal
15072514
Decimal
3,437,900
Country
ES
Tail
EC-OBY
Type
A21N
Broadcasting now · callsign IBS1590 · 8,875 ft
Flights observed
500
Distinct callsigns
20
Country
ES
Last broadcast
8h ago

Current position

34754C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 34754C falls within the block assigned to Spain (ES) by ICAO Annex 10, Volume III. Every aircraft registered in Spain 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
IBS16NQ - 7 2026-07-14
IBS1614 - 7 2026-07-08
IBS1590 - 7 2026-06-18
IBS16ZD Iberia Express 6 2026-05-21
IBS16RT Iberia Express 6 2026-05-30
IBS16QF - 6 2026-07-07
IBS1695 - 6 2026-07-13
IBS1527 - 6 2026-07-15
IBS18BW Iberia Express 5 2026-05-28
IBS16YR Iberia Express 5 2026-05-21
IBS16PT Iberia Express 5 2026-06-19
IBS16MX Iberia Express 5 2026-04-28
IBS16HT Iberia Express 5 2026-06-26
IBS16EA Iberia Express 5 2026-06-26
IBS1581 Iberia Express 5 2026-07-04
IBS1528 - 5 2026-07-16
IBS1925 - 4 2026-07-11
IBS18UR Iberia Express 4 2026-06-25
IBS18KQ Iberia Express 4 2026-06-25
IBS1832 Iberia Express 4 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 IBS15ZT - Jul 17, 19:09 UTCJul 17, 21:30 UTC2h 20m
2026-07-17 IBS15AA - Jul 17, 15:49 UTCJul 17, 18:00 UTC2h 10m
2026-07-17 IBS15YM - Jul 17, 12:19 UTCJul 17, 14:39 UTC2h 20m
2026-07-17 IBS1604 LPA → MAD Jul 17, 08:25 UTCJul 17, 10:30 UTC2h 5m
2026-07-17 IBS16RL MAD → LPA Jul 17, 04:29 UTCJul 17, 06:50 UTC2h 20m
2026-07-16 IBS17UQ IBZ → MAD Jul 16, 20:00 UTCJul 16, 20:45 UTC45m
2026-07-16 IBS17FT - Jul 16, 18:00 UTCJul 16, 18:55 UTC55m
2026-07-16 IBS1532 - Jul 16, 14:10 UTCJul 16, 16:25 UTC2h 15m
2026-07-16 IBS1531 - Jul 16, 10:25 UTCJul 16, 12:55 UTC2h 30m
2026-07-16 IBS1528 - Jul 16, 06:35 UTCJul 16, 08:35 UTC2h 0m
2026-07-15 IBS1527 - Jul 15, 19:25 UTCJul 15, 21:45 UTC2h 20m
2026-07-15 IBS15AA - Jul 15, 15:50 UTCJul 15, 18:15 UTC2h 25m
2026-07-15 IBS15YM - Jul 15, 12:15 UTCJul 15, 14:50 UTC2h 35m
2026-07-15 IBS15QV - Jul 15, 08:30 UTCJul 15, 10:50 UTC2h 20m
2026-07-15 IBS15SB - Jul 15, 04:55 UTCJul 15, 07:35 UTC2h 40m
2026-07-14 IBS16NQ - Jul 14, 18:40 UTCJul 14, 20:45 UTC2h 5m
2026-07-14 IBS16UT - Jul 14, 14:55 UTCJul 14, 17:15 UTC2h 20m
2026-07-14 IBS16ZJ - Jul 14, 11:20 UTCJul 14, 13:25 UTC2h 5m
2026-07-14 IBS16FN - Jul 14, 07:10 UTCJul 14, 09:35 UTC2h 25m
2026-07-14 IBS1634 - Jul 14, 02:15 UTCJul 14, 04:15 UTC2h 0m
2026-07-13 IBS1633 - Jul 13, 22:40 UTCJul 14, 01:00 UTC2h 20m
2026-07-13 IBS17UQ - Jul 13, 20:15 UTCJul 13, 21:00 UTC45m
2026-07-13 IBS17FT - Jul 13, 18:30 UTCJul 13, 19:15 UTC45m
2026-07-13 IBS17WV - Jul 13, 16:00 UTCJul 13, 16:55 UTC55m
2026-07-13 IBS1699 - Jul 13, 14:10 UTCJul 13, 14:55 UTC45m
2026-07-13 IBS16GJ IBZ → MAD Jul 13, 11:40 UTCJul 13, 12:30 UTC50m
2026-07-13 IBS1695 - Jul 13, 09:50 UTCJul 13, 10:35 UTC45m
2026-07-13 IBS16QY - Jul 13, 07:25 UTCJul 13, 08:25 UTC1h 0m
2026-07-13 IBS16RR - Jul 13, 05:20 UTCJul 13, 06:15 UTC55m
2026-07-12 IBS1706 - Jul 12, 22:30 UTCJul 12, 23:20 UTC50m
2026-07-12 IBS17TR MAD → IBZ Jul 12, 20:50 UTCJul 12, 21:35 UTC45m
2026-07-12 IBS15NL - Jul 12, 17:45 UTCJul 12, 19:35 UTC1h 50m
2026-07-12 IBS15TC - Jul 12, 14:15 UTCJul 12, 16:20 UTC2h 5m
2026-07-12 IBS1501 - Jul 12, 07:05 UTCJul 12, 12:35 UTC5h 30m
2026-07-12 IBS1926 - Jul 12, 01:10 UTCJul 12, 05:05 UTC3h 55m
2026-07-11 IBS1925 - Jul 11, 23:25 UTCJul 11, 23:50 UTC25m
2026-07-11 IBS1925 - Jul 11, 19:45 UTCJul 11, 22:35 UTC2h 50m
2026-07-11 IBS16KN - Jul 11, 12:15 UTCJul 11, 18:15 UTC6h 0m
2026-07-11 IBS16PP - Jul 11, 09:10 UTCJul 11, 11:00 UTC1h 50m
2026-07-11 IBS16KQ - Jul 11, 05:01 UTCJul 11, 07:25 UTC2h 25m
2026-07-10 IBS17UQ IBZ → MAD Jul 10, 19:55 UTCJul 10, 20:50 UTC55m
2026-07-10 IBS17FT MAD → IBZ Jul 10, 18:10 UTCJul 10, 18:55 UTC45m
2026-07-10 IBS18SJ - Jul 10, 14:00 UTCJul 10, 16:10 UTC2h 10m
2026-07-10 IBS18ZP - Jul 10, 10:05 UTCJul 10, 12:10 UTC2h 5m
2026-07-10 IBS16QY - Jul 10, 07:45 UTCJul 10, 08:45 UTC1h 0m
2026-07-10 IBS16RR - Jul 10, 05:30 UTCJul 10, 06:30 UTC1h 0m
2026-07-09 IBS15EX - Jul 9, 16:20 UTCJul 9, 18:35 UTC2h 15m
2026-07-09 IBS15EK - Jul 9, 12:55 UTCJul 9, 15:15 UTC2h 20m
2026-07-09 IBS15RN - Jul 9, 09:10 UTCJul 9, 11:20 UTC2h 10m
2026-07-09 IBS15UA - Jul 9, 05:15 UTCJul 9, 07:40 UTC2h 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 EC-OBY page for operator, model, and routing details .

Mode-S 34754C frequently asked

What is Mode-S code 34754C?
34754C is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-OBY.
Where is Mode-S 34754C registered?
Mode-S code 34754C is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 34754C broadcasting right now?
Yes. Mode-S 34754C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 34754C, octal 15072514, decimal 3,437,900.
What flights does 34754C operate?
Mode-S 34754C has broadcast 20 distinct callsigns, including IBS16NQ, IBS1614, IBS1590, IBS16ZD, IBS16RT.