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sensors Mode-S transponder

AA0EC7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N747YX · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
AA0EC7
Octal
52407307
Decimal
11,144,903
Country
US
Tail
N747YX
Type
E75L
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
654
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AA0EC7.

Country allocation

The ICAO 24-bit address AA0EC7 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 20 distinct

Callsign Airline Flights Last seen
RPA3705 - 9 2026-07-14
RPA3676 - 9 2026-07-25
RPA3659 - 7 2026-07-11
RPA3647 - 7 2026-07-21
RPA3604 - 7 2026-07-10
RPA3556 Republic Airlines 7 2026-07-22
RPA3477 - 7 2026-07-01
RPA3404 Republic Airlines 7 2026-07-24
RPA3702 - 6 2026-07-06
RPA3625 Republic Airlines 6 2026-07-26
RPA3620 Republic Airlines 6 2026-07-24
RPA3606 Republic Airlines 6 2026-07-23
RPA3583 Republic Airlines 6 2026-07-24
RPA3581 Republic Airlines 6 2026-05-09
RPA3545 - 6 2026-07-14
RPA3452 - 6 2026-07-03
RPA3436 - 6 2026-07-12
RPA3424 - 6 2026-07-11
RPA3703 Republic Airlines 5 2026-07-26
RPA3701 - 5 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA3596 EWR → PIT Jul 26, 20:45 UTCJul 26, 21:45 UTC1h 0m
2026-07-26 RPA3478 EWR → ILM Jul 26, 17:00 UTCJul 26, 18:40 UTC1h 40m
2026-07-26 RPA3669 ROC → EWR Jul 26, 14:05 UTCJul 26, 15:35 UTC1h 30m
2026-07-26 RPA3703 YQB → EWR Jul 26, 10:25 UTCJul 26, 11:14 UTC49m
2026-07-26 RPA3703 YQB → EWR Jul 26, 10:05 UTCJul 26, 11:25 UTC1h 20m
2026-07-26 RPA3625 EWR → ROC Jul 26, 02:00 UTCJul 26, 03:10 UTC1h 10m
2026-07-25 RPA3447 IAD → JAX Jul 25, 17:50 UTCJul 25, 19:30 UTC1h 40m
2026-07-25 RPA3676 - Jul 25, 14:55 UTCJul 25, 16:35 UTC1h 40m
2026-07-25 RPA3482 DCA → EWR Jul 25, 11:35 UTCJul 25, 13:15 UTC1h 40m
2026-07-24 RPA3620 ORF → EWR Jul 24, 23:05 UTCJul 25, 01:10 UTC2h 5m
2026-07-24 RPA3404 BOS → EWR Jul 24, 20:10 UTCJul 24, 20:55 UTC45m
2026-07-24 RPA3558 PHL → ORD Jul 24, 18:25 UTCJul 24, 19:15 UTC50m
2026-07-24 RPA3583 BOS → EWR Jul 24, 16:20 UTCJul 24, 17:20 UTC1h 0m
2026-07-24 RPA3536 ATL → EWR Jul 24, 13:10 UTCJul 24, 14:45 UTC1h 35m
2026-07-24 RPA3483 EWR → GSO Jul 24, 10:50 UTCJul 24, 11:30 UTC40m
2026-07-24 RPA3475 DTW → EWR Jul 24, 02:50 UTCJul 24, 03:40 UTC50m
2026-07-23 RPA3549 EWR → CLT Jul 23, 21:35 UTCJul 23, 23:25 UTC1h 50m
2026-07-23 RPA3715 EWR → YUL Jul 23, 19:10 UTCJul 23, 19:45 UTC35m
2026-07-23 RPA3715 - Jul 23, 18:55 UTCJul 23, 19:45 UTC50m
2026-07-23 RPA3557 EWR → YYZ Jul 23, 16:20 UTCJul 23, 17:50 UTC1h 30m
2026-07-23 RPA3486 EWR → DCA Jul 23, 13:30 UTCJul 23, 15:06 UTC1h 36m
2026-07-23 RPA3486 EWR → DCA Jul 23, 13:25 UTCJul 23, 15:05 UTC1h 40m
2026-07-23 RPA3700 - Jul 23, 10:30 UTCJul 23, 11:50 UTC1h 20m
2026-07-23 RPA3606 PIT → EWR Jul 23, 01:55 UTCJul 23, 03:15 UTC1h 20m
2026-07-22 RPA3564 CMH → EWR Jul 22, 22:47 UTCJul 23, 00:29 UTC1h 42m
2026-07-22 RPA3564 CMH → EWR Jul 22, 22:40 UTCJul 23, 00:35 UTC1h 55m
2026-07-22 RPA3556 CVG → ORD Jul 22, 19:35 UTCJul 22, 21:55 UTC2h 20m
2026-07-22 RPA3556 CVG → ORD Jul 22, 19:28 UTCJul 22, 21:39 UTC2h 11m
2026-07-22 RPA3583 BOS → EWR Jul 22, 17:00 UTCJul 22, 18:20 UTC1h 20m
2026-07-22 RPA3583 BOS → EWR Jul 22, 15:47 UTCJul 22, 18:17 UTC2h 30m
2026-07-22 RPA3536 ATL → EWR Jul 22, 12:45 UTCJul 22, 14:25 UTC1h 40m
2026-07-22 RPA3635 IAD → LGA Jul 22, 00:35 UTCJul 22, 02:30 UTC1h 55m
2026-07-21 RPA3523 MSY → EWR Jul 21, 21:45 UTCJul 21, 23:40 UTC1h 55m
2026-07-21 RPA3494 ROC → ORD Jul 21, 17:05 UTCJul 21, 18:35 UTC1h 30m
2026-07-21 RPA3647 EWR → ROC Jul 21, 15:00 UTCJul 21, 16:10 UTC1h 10m
2026-07-21 RPA3567 - Jul 21, 11:15 UTCJul 21, 13:00 UTC1h 45m
2026-07-20 RPA3519 EWR → IND Jul 20, 22:57 UTCJul 21, 00:19 UTC1h 22m
2026-07-20 RPA3519 EWR → IND Jul 20, 22:50 UTCJul 21, 00:20 UTC1h 30m
2026-07-20 RPA3580 - Jul 20, 20:20 UTCJul 20, 21:10 UTC50m
2026-07-20 RPA3629 - Jul 20, 17:25 UTCJul 20, 18:40 UTC1h 15m
2026-07-20 RPA3534 - Jul 20, 14:55 UTCJul 20, 15:30 UTC35m
2026-07-19 RPA3446 EWR → IND Jul 19, 19:40 UTCJul 19, 21:20 UTC1h 40m
2026-07-19 RPA3467 CMH → EWR Jul 19, 16:30 UTCJul 19, 17:45 UTC1h 15m
2026-07-19 RPA3638 JAX → EWR Jul 19, 13:30 UTCJul 19, 14:50 UTC1h 20m
2026-07-18 RPA3482 - Jul 18, 11:50 UTCJul 18, 13:35 UTC1h 45m
2026-07-17 RPA3620 - Jul 17, 23:50 UTCJul 18, 01:50 UTC2h 0m
2026-07-17 RPA3404 - Jul 17, 20:50 UTCJul 17, 21:39 UTC50m
2026-07-17 RPA3558 EWR → BTV Jul 17, 18:00 UTCJul 17, 18:50 UTC50m
2026-07-17 RPA3648 YYZ → EWR Jul 17, 15:00 UTCJul 17, 16:00 UTC1h 0m
2026-07-17 RPA3431 IAD → YYZ Jul 17, 13:05 UTCJul 17, 14:04 UTC1h 0m

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 N747YX page for operator, model, and routing details .

Mode-S AA0EC7 frequently asked

What is Mode-S code AA0EC7?
AA0EC7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N747YX.
Where is Mode-S AA0EC7 registered?
Mode-S code AA0EC7 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 AA0EC7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA0EC7, octal 52407307, decimal 11,144,903.
What flights does AA0EC7 operate?
Mode-S AA0EC7 has broadcast 20 distinct callsigns, including RPA3705, RPA3676, RPA3659, RPA3647, RPA3604.