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sensors Mode-S transponder

AB7DA4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N84BL · BELL 407 · operated by HELICOPTERS INC

Hex
AB7DA4
Octal
52676644
Decimal
11,238,820
Country
US
Tail
N84BL
Type
B407
Broadcasting now · callsign N84BL · -100 ft
Flights observed
378
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 22:50 UTC

Current position

AB7DA4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB7DA4 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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 1 distinct

Callsign Airline Flights Last seen
N84BL - 378 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N84BL - Jul 24, 18:20 UTCJul 24, 22:50 UTC4h 30m
2026-07-24 N84BL - Jul 24, 17:10 UTCJul 24, 17:35 UTC25m
2026-07-24 N84BL - Jul 24, 16:00 UTCJul 24, 16:20 UTC20m
2026-07-24 N84BL - Jul 24, 09:20 UTCJul 24, 11:05 UTC1h 45m
2026-07-23 N84BL - Jul 23, 20:20 UTCJul 24, 00:15 UTC3h 55m
2026-07-23 N84BL - Jul 23, 19:30 UTCJul 23, 19:50 UTC20m
2026-07-23 N84BL - Jul 23, 00:40 UTCJul 23, 01:30 UTC50m
2026-07-22 N84BL - Jul 22, 22:55 UTCJul 22, 23:45 UTC50m
2026-07-22 N84BL - Jul 22, 21:50 UTCJul 22, 22:20 UTC30m
2026-07-22 N84BL - Jul 22, 20:30 UTCJul 22, 20:55 UTC25m
2026-07-22 N84BL - Jul 22, 18:50 UTCJul 22, 19:40 UTC50m
2026-07-22 N84BL - Jul 22, 16:20 UTCJul 22, 18:05 UTC1h 45m
2026-07-22 N84BL - Jul 22, 13:00 UTCJul 22, 14:50 UTC1h 50m
2026-07-21 N84BL - Jul 21, 18:10 UTCJul 21, 18:20 UTC10m
2026-07-21 N84BL - Jul 21, 15:50 UTCJul 21, 16:35 UTC45m
2026-07-21 N84BL - Jul 21, 13:20 UTCJul 21, 14:05 UTC45m
2026-07-21 N84BL - Jul 21, 11:05 UTCJul 21, 12:35 UTC1h 30m
2026-07-21 N84BL - Jul 21, 02:40 UTCJul 21, 03:35 UTC55m
2026-07-20 N84BL - Jul 20, 23:15 UTCJul 21, 00:15 UTC59m
2026-07-20 N84BL - Jul 20, 19:10 UTCJul 20, 22:45 UTC3h 35m
2026-07-20 N84BL - Jul 20, 17:00 UTCJul 20, 17:25 UTC25m
2026-07-20 N84BL - Jul 20, 13:35 UTCJul 20, 14:00 UTC25m
2026-07-20 N84BL JRA → EWR Jul 20, 12:05 UTCJul 20, 13:00 UTC55m
2026-07-20 N84BL - Jul 20, 00:25 UTCJul 20, 01:25 UTC1h 0m
2026-07-19 N84BL - Jul 19, 22:55 UTCJul 19, 23:15 UTC20m
2026-07-19 N84BL - Jul 19, 20:05 UTCJul 19, 20:40 UTC35m
2026-07-19 N84BL - Jul 19, 15:10 UTCJul 19, 17:30 UTC2h 20m
2026-07-19 N84BL - Jul 19, 13:10 UTCJul 19, 14:35 UTC1h 25m
2026-07-18 N84BL - Jul 18, 14:40 UTCJul 18, 15:25 UTC45m
2026-07-18 N84BL - Jul 18, 12:50 UTCJul 18, 13:45 UTC55m
2026-07-18 N84BL - Jul 18, 00:04 UTCJul 18, 00:45 UTC40m
2026-07-17 N84BL - Jul 17, 16:04 UTCJul 17, 16:29 UTC25m
2026-07-17 N84BL - Jul 17, 14:44 UTCJul 17, 15:05 UTC20m
2026-07-17 N84BL - Jul 17, 13:29 UTCJul 17, 14:04 UTC35m
2026-07-17 N84BL - Jul 17, 11:50 UTCJul 17, 12:15 UTC25m
2026-07-16 N84BL - Jul 16, 20:49 UTCJul 16, 21:40 UTC50m
2026-07-16 N84BL - Jul 16, 17:35 UTCJul 16, 18:34 UTC1h 0m
2026-07-16 N84BL - Jul 16, 16:25 UTCJul 16, 16:55 UTC30m
2026-07-16 N84BL - Jul 16, 15:30 UTCJul 16, 15:40 UTC10m
2026-07-16 N84BL - Jul 16, 12:14 UTCJul 16, 14:45 UTC2h 30m
2026-07-15 N84BL - Jul 15, 22:55 UTCJul 16, 00:05 UTC1h 10m
2026-07-15 N84BL - Jul 15, 18:10 UTCJul 15, 21:15 UTC3h 5m
2026-07-14 N84BL - Jul 14, 20:20 UTCJul 14, 23:35 UTC3h 14m
2026-07-14 N84BL - Jul 14, 18:55 UTCJul 14, 19:35 UTC40m
2026-07-14 N84BL - Jul 14, 17:00 UTCJul 14, 17:40 UTC40m
2026-07-14 N84BL - Jul 14, 14:50 UTCJul 14, 16:00 UTC1h 10m
2026-07-14 N84BL - Jul 14, 11:00 UTCJul 14, 11:30 UTC30m
2026-07-13 N84BL - Jul 13, 23:45 UTCJul 14, 00:35 UTC50m
2026-07-13 N84BL JRA → BLM Jul 13, 20:20 UTCJul 13, 22:35 UTC2h 15m
2026-07-13 N84BL JRA → JRA Jul 13, 18:50 UTCJul 13, 19:40 UTC50m

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 N84BL page for operator, model, and routing details .

Mode-S AB7DA4 frequently asked

What is Mode-S code AB7DA4?
AB7DA4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N84BL.
Where is Mode-S AB7DA4 registered?
Mode-S code AB7DA4 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AB7DA4 broadcasting right now?
Yes. Mode-S AB7DA4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB7DA4, octal 52676644, decimal 11,238,820.
What flights does AB7DA4 operate?
Mode-S AB7DA4 has broadcast 1 distinct callsign, including N84BL.