Apparatus

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sensors Mode-S transponder

A5D713

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N47570 · BOEING 737 MAX 9 · operated by UNITED AIRLINES INC

Hex
A5D713
Octal
51353423
Decimal
10,868,499
Country
US
Tail
N47570
Type
B39M
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
363
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A5D713.

Country allocation

The ICAO 24-bit address A5D713 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
UAL1177 United Airlines 5 2026-07-25
UAL1092 - 5 2026-07-18
UAL389 United Airlines 4 2026-05-02
UAL388 United Airlines 4 2026-05-02
UAL337 - 4 2026-06-17
UAL1679 United Airlines 4 2026-04-14
UAL624 United Airlines 3 2026-04-20
UAL595 United Airlines 3 2026-07-25
UAL520 - 3 2026-04-13
UAL455 United Airlines 3 2026-04-16
UAL2854 United Airlines 3 2026-04-16
UAL2375 United Airlines 3 2026-05-01
UAL2356 - 3 2026-06-18
UAL1811 United Airlines 3 2026-06-01
UAL1784 United Airlines 3 2026-06-04
UAL1732 United Airlines 3 2026-04-20
UAL1710 - 3 2026-06-23
UAL1705 United Airlines 3 2026-05-20
UAL1618 United Airlines 3 2026-04-30
UAL1307 United Airlines 3 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL1021 EWR → PTY Jul 26, 19:30 UTCJul 26, 21:45 UTC2h 15m
2026-07-26 UAL1988 IAH → CLT Jul 26, 13:55 UTCJul 26, 17:30 UTC3h 35m
2026-07-25 UAL1177 ATL → EWR Jul 25, 18:45 UTCJul 25, 22:25 UTC3h 40m
2026-07-25 UAL1177 ATL → EWR Jul 25, 18:18 UTCJul 25, 22:24 UTC4h 6m
2026-07-25 UAL595 AUS → DEN Jul 25, 13:40 UTCJul 25, 15:25 UTC1h 45m
2026-07-25 UAL1943 ORD → CHS Jul 25, 03:25 UTCJul 25, 05:05 UTC1h 40m
2026-07-25 UAL1943 ORD → CHS Jul 25, 03:13 UTCJul 25, 05:07 UTC1h 54m
2026-07-25 UAL2155 MSP → EWR Jul 25, 00:35 UTCJul 25, 01:40 UTC1h 5m
2026-07-24 UAL2383 PHL → DEN Jul 24, 18:15 UTCJul 24, 19:05 UTC50m
2026-07-24 UAL2052 IAH → MSY Jul 24, 12:00 UTCJul 24, 15:55 UTC3h 55m
2026-07-24 UAL2254 PDX → DEN Jul 24, 00:20 UTCJul 24, 03:35 UTC3h 15m
2026-07-23 UAL2338 PSP → SFO Jul 23, 20:30 UTCJul 23, 22:30 UTC2h 0m
2026-07-23 UAL2368 SFO → DEN Jul 23, 17:15 UTCJul 23, 19:00 UTC1h 45m
2026-07-23 UAL595 AUS → DEN Jul 23, 14:00 UTCJul 23, 15:45 UTC1h 45m
2026-07-23 UAL2126 EWR → MBJ Jul 23, 02:00 UTCJul 23, 05:10 UTC3h 10m
2026-07-22 UAL1948 IAH → SFO Jul 22, 19:30 UTCJul 23, 00:15 UTC4h 45m
2026-07-22 UAL1052 EWR → CUN Jul 22, 14:00 UTCJul 22, 17:40 UTC3h 40m
2026-07-22 UAL1833 MCO → EWR Jul 22, 11:10 UTCJul 22, 11:55 UTC45m
2026-07-22 UAL688 IAD → BOS Jul 22, 03:50 UTCJul 22, 05:15 UTC1h 25m
2026-07-21 UAL1694 CUN → IAD Jul 21, 16:25 UTCJul 21, 20:00 UTC3h 35m
2026-07-21 UAL1619 - Jul 21, 12:55 UTCJul 21, 14:45 UTC1h 50m
2026-07-20 UAL1284 EWR → SLC Jul 20, 20:34 UTCJul 21, 00:17 UTC3h 43m
2026-07-20 UAL2122 EWR → PUJ Jul 20, 15:06 UTCJul 20, 18:43 UTC3h 37m
2026-07-20 UAL2122 - Jul 20, 15:15 UTCJul 20, 16:35 UTC1h 20m
2026-07-19 UAL2402 LAX → BOS Jul 19, 15:35 UTCJul 19, 19:40 UTC4h 5m
2026-07-19 UAL1823 SFO → DEN Jul 19, 12:20 UTCJul 19, 13:35 UTC1h 15m
2026-07-19 UAL497 CVG → DEN Jul 19, 02:20 UTCJul 19, 03:25 UTC1h 5m
2026-07-19 UAL497 CVG → DEN Jul 19, 02:17 UTCJul 19, 03:24 UTC1h 7m
2026-07-18 UAL1017 ORD → BUF Jul 18, 22:45 UTCJul 19, 00:35 UTC1h 50m
2026-07-18 UAL1017 ORD → BUF Jul 18, 22:33 UTCJul 19, 00:33 UTC2h 0m
2026-07-18 UAL1177 DEN → CUN Jul 18, 17:00 UTCJul 18, 20:30 UTC3h 30m
2026-07-18 UAL1026 DEN → AUS Jul 18, 14:05 UTCJul 18, 15:10 UTC1h 5m
2026-07-18 UAL1092 - Jul 18, 02:29 UTCJul 18, 03:10 UTC41m
2026-07-18 UAL1092 DEN → MSO Jul 18, 02:22 UTCJul 18, 04:08 UTC1h 46m
2026-07-17 UAL1136 CUN → DEN Jul 17, 21:00 UTCJul 18, 00:25 UTC3h 25m
2026-07-17 UAL1167 FLL → EWR Jul 17, 17:35 UTCJul 17, 19:25 UTC1h 50m
2026-07-17 UAL1167 FLL → EWR Jul 17, 17:35 UTCJul 17, 19:19 UTC1h 44m
2026-07-17 UAL2611 - Jul 17, 13:50 UTCJul 17, 14:44 UTC55m
2026-07-17 UAL2611 MCO → IAH Jul 17, 13:59 UTCJul 17, 15:40 UTC1h 41m
2026-06-26 UAL2323 - Jun 26, 01:29 UTCJun 26, 03:20 UTC1h 50m
2026-06-25 UAL2815 - Jun 25, 19:54 UTCJun 25, 22:59 UTC3h 5m
2026-06-25 UAL2402 - Jun 25, 15:24 UTCJun 25, 18:19 UTC2h 55m
2026-06-25 UAL2491 SFO → DEN Jun 25, 11:35 UTCJun 25, 13:35 UTC2h 0m
2026-06-23 UAL1393 ORD → TPA Jun 23, 23:34 UTCJun 24, 01:39 UTC2h 5m
2026-06-23 UAL1710 - Jun 23, 21:14 UTCJun 23, 21:24 UTC10m
2026-06-23 UAL1710 SAN → ORD Jun 23, 17:50 UTCJun 23, 21:24 UTC3h 35m
2026-06-23 UAL1710 SAN → ORD Jun 23, 17:51 UTCJun 23, 20:58 UTC3h 7m
2026-06-23 UAL2428 ORD → SAN Jun 23, 12:45 UTCJun 23, 16:39 UTC3h 55m
2026-06-23 UAL1640 - Jun 23, 05:45 UTCJun 23, 11:24 UTC5h 40m
2026-06-22 UAL2223 - Jun 22, 21:40 UTCJun 23, 03:29 UTC5h 50m

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 N47570 page for operator, model, and routing details .

Mode-S A5D713 frequently asked

What is Mode-S code A5D713?
A5D713 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N47570.
Where is Mode-S A5D713 registered?
Mode-S code A5D713 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 A5D713 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 A5D713, octal 51353423, decimal 10,868,499.
What flights does A5D713 operate?
Mode-S A5D713 has broadcast 20 distinct callsigns, including UAL1177, UAL1092, UAL389, UAL388, UAL337.