Apparatus

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sensors Mode-S transponder

AA7BA5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N775AL · BELL 407 · operated by AIR METHODS LLC

Hex
AA7BA5
Octal
52475645
Decimal
11,172,773
Country
US
Tail
N775AL
Type
B407
No current signal · last broadcast Jul 25, 04:45 UTC
Flights observed
141
Distinct callsigns
4
Country
US
Last broadcast
Jul 25, 04:45 UTC

Last known position

Most recent position reported by Mode-S AA7BA5.

Country allocation

The ICAO 24-bit address AA7BA5 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 4 distinct

Callsign Airline Flights Last seen
ALIFE2 - 50 2026-07-25
ALIFE5 - 48 2026-07-05
ALIFE3 - 39 2026-07-13
N775AL - 4 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 ALIFE2 - Jul 25, 04:35 UTCJul 25, 04:45 UTC10m
2026-07-24 ALIFE2 - Jul 24, 23:20 UTCJul 24, 23:30 UTC10m
2026-07-24 ALIFE2 - Jul 24, 20:45 UTCJul 24, 20:50 UTC5m
2026-07-24 ALIFE2 - Jul 24, 16:45 UTCJul 24, 16:55 UTC10m
2026-07-24 ALIFE2 - Jul 24, 13:20 UTCJul 24, 13:30 UTC10m
2026-07-21 ALIFE2 - Jul 21, 14:20 UTCJul 21, 14:30 UTC10m
2026-07-21 ALIFE2 - Jul 21, 13:30 UTCJul 21, 13:50 UTC20m
2026-07-21 ALIFE2 - Jul 21, 09:40 UTCJul 21, 09:50 UTC10m
2026-07-20 ALIFE2 - Jul 20, 23:25 UTCJul 20, 23:35 UTC10m
2026-07-20 ALIFE2 - Jul 20, 21:35 UTCJul 20, 22:30 UTC55m
2026-07-19 ALIFE2 - Jul 19, 16:15 UTCJul 19, 16:40 UTC25m
2026-07-19 ALIFE2 - Jul 19, 14:40 UTCJul 19, 15:30 UTC50m
2026-07-19 ALIFE2 - Jul 19, 01:50 UTCJul 19, 03:30 UTC1h 40m
2026-07-18 ALIFE2 - Jul 18, 21:10 UTCJul 18, 21:20 UTC10m
2026-07-18 ALIFE2 - Jul 18, 19:45 UTCJul 18, 20:25 UTC40m
2026-07-18 ALIFE2 - Jul 18, 00:50 UTCJul 18, 01:00 UTC10m
2026-07-17 ALIFE2 - Jul 17, 18:29 UTCJul 17, 18:44 UTC15m
2026-07-17 ALIFE2 - Jul 17, 17:40 UTCJul 17, 17:50 UTC10m
2026-07-15 ALIFE2 - Jul 15, 11:55 UTCJul 15, 12:10 UTC15m
2026-07-13 ALIFE3 - Jul 13, 16:45 UTCJul 13, 17:00 UTC15m
2026-07-13 ALIFE3 - Jul 13, 15:35 UTCJul 13, 15:50 UTC15m
2026-07-12 ALIFE3 - Jul 12, 01:35 UTCJul 12, 01:45 UTC10m
2026-07-12 ALIFE3 - Jul 12, 00:55 UTCJul 12, 01:05 UTC10m
2026-07-12 ALIFE3 - Jul 12, 00:15 UTCJul 12, 00:25 UTC10m
2026-07-11 ALIFE3 - Jul 11, 21:45 UTCJul 11, 21:55 UTC10m
2026-07-11 ALIFE3 - Jul 11, 20:25 UTCJul 11, 20:35 UTC10m
2026-07-11 ALIFE3 - Jul 11, 18:15 UTCJul 11, 18:35 UTC20m
2026-07-11 ALIFE3 - Jul 11, 15:50 UTCJul 11, 16:05 UTC15m
2026-07-11 ALIFE3 - Jul 11, 07:20 UTCJul 11, 07:30 UTC10m
2026-07-07 ALIFE2 - Jul 7, 19:00 UTCJul 7, 19:30 UTC30m
2026-07-05 ALIFE5 - Jul 5, 08:45 UTCJul 5, 09:40 UTC55m
2026-07-05 ALIFE5 - Jul 5, 03:10 UTCJul 5, 03:40 UTC30m
2026-07-04 ALIFE5 - Jul 4, 18:20 UTCJul 4, 18:40 UTC20m
2026-07-04 ALIFE5 - Jul 4, 16:35 UTCJul 4, 16:50 UTC15m
2026-07-03 ALIFE5 - Jul 3, 01:50 UTCJul 3, 02:30 UTC40m
2026-07-03 ALIFE5 - Jul 3, 00:55 UTCJul 3, 01:25 UTC30m
2026-07-02 ALIFE5 - Jul 2, 19:10 UTCJul 2, 19:25 UTC15m
2026-07-02 ALIFE5 - Jul 2, 17:35 UTCJul 2, 17:50 UTC15m
2026-07-02 ALIFE5 - Jul 2, 01:00 UTCJul 2, 01:45 UTC45m
2026-07-01 ALIFE5 - Jul 1, 23:35 UTCJul 2, 00:00 UTC25m
2026-07-01 ALIFE5 - Jul 1, 13:50 UTCJul 1, 14:40 UTC50m
2026-07-01 ALIFE5 - Jul 1, 12:55 UTCJul 1, 13:10 UTC15m
2026-06-24 ALIFE5 - Jun 24, 22:00 UTCJun 24, 23:40 UTC1h 40m
2026-06-23 ALIFE5 - Jun 23, 01:10 UTCJun 23, 01:20 UTC10m
2026-06-23 ALIFE5 - Jun 23, 00:09 UTCJun 23, 00:24 UTC15m
2026-06-19 ALIFE5 - Jun 19, 12:34 UTCJun 19, 12:54 UTC20m
2026-06-19 ALIFE5 - Jun 19, 11:49 UTCJun 19, 11:59 UTC10m
2026-06-19 ALIFE5 - Jun 19, 10:14 UTCJun 19, 10:54 UTC40m
2026-06-18 ALIFE5 - Jun 18, 08:30 UTCJun 18, 08:45 UTC15m
2026-06-18 ALIFE5 - Jun 18, 07:45 UTCJun 18, 07:55 UTC10m

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 N775AL page for operator, model, and routing details .

Mode-S AA7BA5 frequently asked

What is Mode-S code AA7BA5?
AA7BA5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N775AL.
Where is Mode-S AA7BA5 registered?
Mode-S code AA7BA5 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 AA7BA5 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 04:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA7BA5, octal 52475645, decimal 11,172,773.
What flights does AA7BA5 operate?
Mode-S AA7BA5 has broadcast 4 distinct callsigns, including ALIFE2, ALIFE5, ALIFE3, N775AL.