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sensors Mode-S transponder

A29D27

ICAO 24-bit transponder address · allocated to United States

Hex
A29D27
Octal
50516447
Decimal
10,657,063
Country
US
No current signal · last broadcast 23d ago
Flights observed
144
Distinct callsigns
2
Country
US
Last broadcast
23d ago

Last known position

Most recent position reported by Mode-S A29D27.

Country allocation

The ICAO 24-bit address A29D27 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 2 distinct

Callsign Airline Flights Last seen
EPI119 - 130 2026-07-22
N268EP - 14 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 EPI119 - Jul 22, 20:00 UTCJul 22, 21:30 UTC1h 30m
2026-07-22 EPI119 - Jul 22, 16:10 UTCJul 22, 17:30 UTC1h 20m
2026-07-22 EPI119 - Jul 22, 02:40 UTCJul 22, 02:55 UTC15m
2026-07-21 EPI119 - Jul 21, 22:55 UTCJul 22, 00:35 UTC1h 40m
2026-07-21 EPI119 - Jul 21, 19:40 UTCJul 21, 20:50 UTC1h 10m
2026-07-21 EPI119 - Jul 21, 14:45 UTCJul 21, 15:25 UTC40m
2026-07-21 EPI119 - Jul 21, 03:50 UTCJul 21, 05:25 UTC1h 35m
2026-07-20 EPI119 - Jul 20, 21:05 UTCJul 20, 23:25 UTC2h 20m
2026-07-20 EPI119 - Jul 20, 15:00 UTCJul 20, 16:35 UTC1h 35m
2026-07-18 EPI119 - Jul 18, 22:15 UTCJul 19, 00:00 UTC1h 45m
2026-07-18 EPI119 - Jul 18, 01:30 UTCJul 18, 02:25 UTC55m
2026-07-17 EPI119 - Jul 17, 22:05 UTCJul 17, 23:05 UTC1h 0m
2026-07-17 EPI119 - Jul 17, 14:50 UTCJul 17, 16:04 UTC1h 15m
2026-07-17 EPI119 - Jul 17, 00:10 UTCJul 17, 00:45 UTC35m
2026-07-16 EPI119 - Jul 16, 21:19 UTCJul 16, 21:35 UTC15m
2026-07-16 EPI119 PNX → CHK Jul 16, 16:30 UTCJul 16, 17:49 UTC1h 20m
2026-07-16 EPI119 - Jul 16, 13:00 UTCJul 16, 14:10 UTC1h 10m
2026-07-15 EPI119 - Jul 15, 18:20 UTCJul 15, 19:30 UTC1h 10m
2026-07-15 EPI119 - Jul 15, 14:50 UTCJul 15, 16:20 UTC1h 30m
2026-07-15 EPI119 - Jul 15, 02:40 UTCJul 15, 02:55 UTC15m
2026-07-15 EPI119 - Jul 15, 00:40 UTCJul 15, 01:50 UTC1h 10m
2026-07-14 EPI119 - Jul 14, 21:45 UTCJul 14, 23:10 UTC1h 24m
2026-07-14 EPI119 - Jul 14, 19:30 UTCJul 14, 20:25 UTC55m
2026-07-14 EPI119 - Jul 14, 15:05 UTCJul 14, 17:40 UTC2h 35m
2026-07-13 EPI119 - Jul 13, 22:45 UTCJul 13, 23:35 UTC50m
2026-07-13 EPI119 - Jul 13, 16:10 UTCJul 13, 18:05 UTC1h 55m
2026-07-10 EPI119 - Jul 10, 14:40 UTCJul 10, 16:00 UTC1h 20m
2026-07-09 EPI119 - Jul 9, 19:10 UTCJul 9, 20:15 UTC1h 5m
2026-07-09 EPI119 - Jul 9, 17:40 UTCJul 9, 18:15 UTC35m
2026-07-09 EPI119 - Jul 9, 14:15 UTCJul 9, 15:25 UTC1h 10m
2026-07-08 EPI119 - Jul 8, 20:30 UTCJul 8, 22:25 UTC1h 55m
2026-07-08 EPI119 - Jul 8, 16:10 UTCJul 8, 17:05 UTC55m
2026-07-07 EPI119 - Jul 7, 15:05 UTCJul 7, 16:35 UTC1h 30m
2026-07-06 EPI119 - Jul 6, 15:50 UTCJul 6, 16:40 UTC50m
2026-07-03 EPI119 - Jul 3, 15:30 UTCJul 3, 16:35 UTC1h 5m
2026-07-02 EPI119 - Jul 2, 15:55 UTCJul 2, 17:10 UTC1h 15m
2026-06-30 EPI119 - Jun 30, 16:35 UTCJun 30, 17:30 UTC55m
2026-06-29 EPI119 - Jun 29, 22:35 UTCJun 29, 23:14 UTC40m
2026-06-26 EPI119 - Jun 26, 00:35 UTCJun 26, 00:59 UTC25m
2026-06-25 EPI119 ADS → ADS Jun 25, 23:09 UTCJun 25, 23:59 UTC50m
2026-06-25 EPI119 - Jun 25, 19:15 UTCJun 25, 20:30 UTC1h 15m
2026-06-25 EPI119 ADS → ADS Jun 25, 13:35 UTCJun 25, 15:04 UTC1h 30m
2026-06-25 EPI119 PNX → ADS Jun 25, 11:30 UTCJun 25, 12:04 UTC35m
2026-06-24 EPI119 - Jun 24, 23:00 UTCJun 25, 00:14 UTC1h 15m
2026-06-24 EPI119 - Jun 24, 16:34 UTCJun 24, 17:34 UTC1h 0m
2026-06-23 EPI119 - Jun 23, 16:59 UTCJun 23, 17:30 UTC30m
2026-06-22 EPI119 - Jun 22, 21:40 UTCJun 22, 22:34 UTC55m
2026-06-22 EPI119 - Jun 22, 16:54 UTCJun 22, 18:15 UTC1h 20m
2026-06-19 EPI119 - Jun 19, 23:59 UTCJun 20, 01:19 UTC1h 20m
2026-06-18 EPI119 - Jun 18, 16:55 UTCJun 18, 17:35 UTC40m

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.

Mode-S A29D27 frequently asked

What is Mode-S code A29D27?
A29D27 is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S A29D27 registered?
Mode-S code A29D27 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 A29D27 broadcasting right now?
No active broadcast right now. Last signal was 23d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A29D27, octal 50516447, decimal 10,657,063.
What flights does A29D27 operate?
Mode-S A29D27 has broadcast 2 distinct callsigns, including EPI119, N268EP.