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sensors Mode-S transponder

AA8CB2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N779YX · EMBRAER ERJ-170-200 (short wing) · operated by REPUBLIC AIRWAYS INC

Hex
AA8CB2
Octal
52506262
Decimal
11,177,138
Country
US
Tail
N779YX
Type
E75S
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
683
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S AA8CB2.

Country allocation

The ICAO 24-bit address AA8CB2 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
RPA3445 - 12 2026-06-23
RPA3600 - 10 2026-07-01
RPA3671 - 8 2026-07-01
RPA3665 - 7 2026-07-24
RPA3497 - 7 2026-07-04
RPA3427 - 7 2026-07-17
RPA3710 - 6 2026-06-30
RPA3672 - 6 2026-06-29
RPA3618 - 6 2026-07-10
RPA3610 - 6 2026-06-21
RPA3569 - 6 2026-07-17
RPA3567 - 6 2026-06-17
RPA3550 Republic Airlines 6 2026-07-26
RPA3549 Republic Airlines 6 2026-07-20
RPA3547 Republic Airlines 6 2026-07-26
RPA3510 Republic Airlines 6 2026-07-24
RPA3479 Republic Airlines 6 2026-07-26
RPA3435 Republic Airlines 6 2026-07-23
RPA3709 Republic Airlines 5 2026-07-26
RPA3673 - 5 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RPA3415 AVL → EWR Jul 26, 22:25 UTCJul 26, 22:30 UTC5m
2026-07-26 RPA3545 EWR → CMH Jul 26, 19:40 UTCJul 26, 20:35 UTC55m
2026-07-26 RPA3547 EWR → BOS Jul 26, 17:05 UTCJul 26, 18:30 UTC1h 25m
2026-07-26 RPA3547 EWR → BOS Jul 26, 17:04 UTCJul 26, 18:24 UTC1h 20m
2026-07-26 RPA3709 IND → EWR Jul 26, 14:15 UTCJul 26, 15:35 UTC1h 20m
2026-07-26 RPA3550 EWR → CLT Jul 26, 12:50 UTCJul 26, 13:25 UTC35m
2026-07-26 RPA3479 EWR → ORF Jul 26, 10:40 UTCJul 26, 11:25 UTC45m
2026-07-26 RPA3705 ORD → LGA Jul 26, 00:10 UTCJul 26, 01:40 UTC1h 30m
2026-07-25 RPA3686 DCA → ORD Jul 25, 19:25 UTCJul 25, 20:25 UTC1h 0m
2026-07-25 RPA3457 EWR → ATL Jul 25, 16:10 UTCJul 25, 17:40 UTC1h 30m
2026-07-25 RPA3422 EWR → CLT Jul 25, 11:25 UTCJul 25, 12:20 UTC55m
2026-07-24 RPA3415 AVL → EWR Jul 24, 22:10 UTCJul 24, 23:50 UTC1h 40m
2026-07-24 RPA3620 ORF → EWR Jul 24, 19:35 UTCJul 24, 20:35 UTC1h 0m
2026-07-24 RPA3535 EWR → JAX Jul 24, 17:10 UTCJul 24, 18:25 UTC1h 15m
2026-07-24 RPA3465 DCA → EWR Jul 24, 14:05 UTCJul 24, 15:25 UTC1h 20m
2026-07-24 RPA3665 - Jul 24, 11:55 UTCJul 24, 12:45 UTC50m
2026-07-24 RPA3510 MKE → EWR Jul 24, 01:50 UTCJul 24, 03:30 UTC1h 40m
2026-07-23 RPA3562 SYR → EWR Jul 23, 22:05 UTCJul 24, 00:05 UTC2h 0m
2026-07-23 RPA3573 DCA → EWR Jul 23, 17:30 UTCJul 23, 19:30 UTC2h 0m
2026-07-23 RPA3630 EWR → YUL Jul 23, 14:05 UTCJul 23, 16:20 UTC2h 15m
2026-07-23 RPA3435 EWR → PHL Jul 23, 11:45 UTCJul 23, 12:45 UTC1h 0m
2026-07-23 RPA3434 BUF → EWR Jul 23, 00:55 UTCJul 23, 01:55 UTC1h 0m
2026-07-22 RPA3522 GSO → EWR Jul 22, 20:40 UTCJul 22, 22:55 UTC2h 15m
2026-07-22 RPA3528 EWR → BUF Jul 22, 17:15 UTCJul 22, 19:35 UTC2h 20m
2026-07-22 RPA3709 IND → EWR Jul 22, 14:20 UTCJul 22, 15:25 UTC1h 5m
2026-07-22 RPA3550 EWR → CLT Jul 22, 12:45 UTCJul 22, 13:15 UTC30m
2026-07-22 RPA3660 RDU → EWR Jul 22, 03:25 UTCJul 22, 04:00 UTC35m
2026-07-22 RPA3660 RDU → EWR Jul 22, 03:12 UTCJul 22, 03:57 UTC45m
2026-07-22 RPA3657 SAV → EWR Jul 22, 01:15 UTCJul 22, 01:25 UTC10m
2026-07-22 RPA3657 SAV → EWR Jul 22, 00:20 UTCJul 22, 01:25 UTC1h 5m
2026-07-22 RPA3657 SAV → EWR Jul 22, 00:24 UTCJul 22, 01:00 UTC36m
2026-07-21 RPA4096 - Jul 21, 13:05 UTCJul 21, 13:45 UTC40m
2026-07-21 RPA3614 STL → EWR Jul 21, 03:45 UTCJul 21, 04:30 UTC45m
2026-07-21 RPA3614 STL → EWR Jul 21, 03:20 UTCJul 21, 04:29 UTC1h 9m
2026-07-20 RPA3549 EWR → CLT Jul 20, 23:40 UTCJul 21, 01:50 UTC2h 10m
2026-07-20 RPA3549 EWR → CLT Jul 20, 23:12 UTCJul 21, 01:36 UTC2h 24m
2026-07-20 RPA3715 - Jul 20, 20:40 UTCJul 20, 21:45 UTC1h 5m
2026-07-20 RPA3480 - Jul 20, 15:45 UTCJul 20, 16:30 UTC45m
2026-07-20 RPA3480 CMH → EWR Jul 20, 15:50 UTCJul 20, 17:02 UTC1h 12m
2026-07-20 RPA3641 EWR → CMH Jul 20, 13:10 UTCJul 20, 14:20 UTC1h 10m
2026-07-20 RPA3423 - Jul 20, 10:15 UTCJul 20, 11:40 UTC1h 25m
2026-07-19 RPA3307 ITH → IND Jul 19, 21:30 UTCJul 19, 22:40 UTC1h 10m
2026-07-19 RPA3450 - Jul 19, 18:25 UTCJul 19, 19:55 UTC1h 30m
2026-07-19 RPA3539 GSP → EWR Jul 19, 16:35 UTCJul 19, 17:30 UTC55m
2026-07-18 RPA3702 ORD → IND Jul 18, 18:18 UTCJul 18, 19:05 UTC47m
2026-07-18 RPA3702 ORD → IND Jul 18, 18:30 UTCJul 18, 19:05 UTC35m
2026-07-18 RPA3406 ABQ → ORD Jul 18, 14:05 UTCJul 18, 16:40 UTC2h 35m
2026-07-18 RPA3640 ORD → ABQ Jul 18, 01:53 UTCJul 18, 03:58 UTC2h 5m
2026-07-18 RPA3640 - Jul 18, 01:34 UTCJul 18, 04:00 UTC2h 26m
2026-07-17 RPA3427 - Jul 17, 22:49 UTCJul 17, 22:55 UTC5m

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 N779YX page for operator, model, and routing details .

Mode-S AA8CB2 frequently asked

What is Mode-S code AA8CB2?
AA8CB2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N779YX.
Where is Mode-S AA8CB2 registered?
Mode-S code AA8CB2 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 AA8CB2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA8CB2, octal 52506262, decimal 11,177,138.
What flights does AA8CB2 operate?
Mode-S AA8CB2 has broadcast 20 distinct callsigns, including RPA3445, RPA3600, RPA3671, RPA3665, RPA3497.