sensors Mode-S transponder

AA78B2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N774JG · EMBRAER ERJ-170-100 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AA78B2
Octal
52474262
Decimal
11,172,018
Country
US
Tail
N774JG
Type
E170
No current signal · last broadcast 17h ago
Flights observed
17
Distinct callsigns
7
Country
US
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S AA78B2.

Country allocation

The ICAO 24-bit address AA78B2 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 7 distinct

Callsign Airline Flights Last seen
ENY3663 - 5 2026-04-13
ENY3720 - 3 2026-04-13
ENY4208 - 2 2026-04-14
ENY4151 Envoy Air 2 2026-04-13
ENY3721 - 2 2026-04-13
ENY3388 - 2 2026-04-13
ENY3583 Envoy Air 1 2026-04-12

Recent flights last 17

DateFlightRouteTakeoffLandingDuration
2026-04-14 ENY4208 - Apr 14, 07:10 UTCApr 14, 07:20 UTC10m
2026-04-14 ENY4208 - Apr 14, 05:37 UTCApr 14, 07:16 UTC1h 39m
2026-04-13 ENY4151 AVL → DFW Apr 13, 23:23 UTCApr 14, 00:38 UTC1h 15m
2026-04-13 ENY4151 AVL → DFW Apr 13, 21:30 UTCApr 13, 22:35 UTC1h 5m
2026-04-13 ENY3663 - Apr 13, 19:45 UTCApr 13, 19:55 UTC10m
2026-04-13 ENY3663 - Apr 13, 18:14 UTCApr 13, 19:46 UTC1h 32m
2026-04-13 ENY3663 - Apr 13, 16:15 UTCApr 13, 17:15 UTC1h 0m
2026-04-13 ENY3663 - Apr 13, 15:50 UTCApr 13, 17:15 UTC1h 25m
2026-04-13 ENY3663 - Apr 13, 15:16 UTCApr 13, 16:57 UTC1h 41m
2026-04-13 ENY3721 - Apr 13, 12:20 UTCApr 13, 13:25 UTC1h 5m
2026-04-13 ENY3721 - Apr 13, 12:13 UTCApr 13, 13:41 UTC1h 28m
2026-04-13 ENY3720 - Apr 13, 04:20 UTCApr 13, 04:35 UTC15m
2026-04-13 ENY3720 - Apr 13, 03:55 UTCApr 13, 04:35 UTC40m
2026-04-13 ENY3720 - Apr 13, 03:25 UTCApr 13, 04:15 UTC50m
2026-04-13 ENY3388 - Apr 13, 00:20 UTCApr 13, 01:20 UTC1h 0m
2026-04-12 ENY3388 - Apr 12, 23:55 UTCApr 13, 01:20 UTC1h 25m
2026-04-12 ENY3583 MHK → ORD Apr 12, 17:40 UTCApr 12, 19:05 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 N774JG page for operator, model, and routing details .

Mode-S AA78B2 frequently asked

What is Mode-S code AA78B2?
AA78B2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N774JG.
Where is Mode-S AA78B2 registered?
Mode-S code AA78B2 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 AA78B2 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA78B2, octal 52474262, decimal 11,172,018.
What flights does AA78B2 operate?
Mode-S AA78B2 has broadcast 7 distinct callsigns, including ENY3663, ENY3720, ENY4208, ENY4151, ENY3721.