Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A16E7D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N19117 · BOEING 757-200 · operated by UNITED AIRLINES INC

Hex
A16E7D
Octal
50267175
Decimal
10,579,581
Country
US
Tail
N19117
Type
B752
No current signal · last broadcast 8d ago
Flights observed
164
Distinct callsigns
20
Country
US
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S A16E7D.

Country allocation

The ICAO 24-bit address A16E7D 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
UAL289 - 7 2026-06-29
UAL1558 - 5 2026-06-30
UAL1340 - 5 2026-06-25
UAL119 United Airlines 5 2026-06-28
UAL118 United Airlines 5 2026-06-28
UAL887 - 4 2026-06-23
UAL648 United Airlines 4 2026-05-28
UAL36 United Airlines 4 2026-06-01
UAL351 - 4 2026-06-27
UAL350 - 4 2026-06-26
UAL288 - 4 2026-06-28
UAL271 United Airlines 4 2026-07-02
UAL2641 United Airlines 4 2026-06-15
UAL2301 - 4 2026-06-22
UAL2248 United Airlines 4 2026-05-28
UAL2191 United Airlines 4 2026-06-04
UAL1597 - 4 2026-07-01
UAL913 - 3 2026-06-18
UAL912 - 3 2026-06-18
UAL886 United Airlines 3 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-05 UAL4200 LCQ → IAH Jul 5, 13:15 UTCJul 5, 16:00 UTC2h 45m
2026-07-05 UAL4200 LCQ → IAH Jul 5, 13:06 UTCJul 5, 15:41 UTC2h 35m
2026-07-02 UAL661 ORD → EWR Jul 2, 21:05 UTCJul 2, 22:50 UTC1h 45m
2026-07-02 UAL271 ATL → EWR Jul 2, 11:40 UTCJul 2, 18:40 UTC7h 0m
2026-07-02 UAL270 - Jul 2, 03:10 UTCJul 2, 08:50 UTC5h 40m
2026-07-01 UAL1597 SFO → EWR Jul 1, 20:05 UTCJul 2, 01:00 UTC4h 55m
2026-07-01 UAL1777 - Jul 1, 12:40 UTCJul 1, 18:15 UTC5h 35m
2026-07-01 UAL327 - Jul 1, 05:10 UTCJul 1, 09:40 UTC4h 30m
2026-06-30 UAL210 - Jun 30, 21:15 UTCJul 1, 02:35 UTC5h 20m
2026-06-30 UAL1149 EWR → SRQ Jun 30, 14:10 UTCJun 30, 19:00 UTC4h 50m
2026-06-30 UAL1558 EWR → SFO Jun 30, 00:43 UTCJun 30, 06:08 UTC5h 25m
2026-06-30 UAL1558 - Jun 30, 00:30 UTCJun 30, 06:10 UTC5h 41m
2026-06-29 UAL2759 - Jun 29, 18:55 UTCJun 29, 20:35 UTC1h 40m
2026-06-29 UAL289 - Jun 29, 08:44 UTCJun 29, 16:25 UTC7h 40m
2026-06-29 UAL289 SNN → ORD Jun 29, 08:47 UTCJun 29, 16:07 UTC7h 20m
2026-06-28 UAL288 ORD → SNN Jun 28, 23:57 UTCJun 29, 06:16 UTC6h 19m
2026-06-28 UAL288 - Jun 28, 23:44 UTCJun 29, 02:09 UTC2h 25m
2026-06-28 UAL119 ORD → EDI Jun 28, 10:50 UTCJun 28, 18:29 UTC7h 40m
2026-06-28 UAL118 ORD → EDI Jun 28, 00:22 UTCJun 28, 07:10 UTC6h 48m
2026-06-28 UAL118 ORD → EDI Jun 28, 00:04 UTCJun 28, 07:14 UTC7h 10m
2026-06-27 UAL2788 EWR → ORD Jun 27, 19:15 UTCJun 27, 21:15 UTC2h 0m
2026-06-27 UAL351 AGP → EWR Jun 27, 07:52 UTCJun 27, 16:04 UTC8h 12m
2026-06-27 UAL351 - Jun 27, 07:39 UTCJun 27, 15:55 UTC8h 15m
2026-06-26 UAL350 - Jun 26, 22:25 UTCJun 27, 05:04 UTC6h 40m
2026-06-26 UAL350 EWR → AGP Jun 26, 22:25 UTCJun 27, 04:59 UTC6h 34m
2026-06-26 UAL1149 EWR → SRQ Jun 26, 14:15 UTCJun 26, 18:54 UTC4h 40m
2026-06-25 UAL1340 - Jun 25, 22:20 UTCJun 26, 04:20 UTC6h 0m
2026-06-25 UAL1149 EWR → SRQ Jun 25, 14:14 UTCJun 25, 18:59 UTC4h 45m
2026-06-24 UAL1340 EWR → SFO Jun 24, 21:44 UTCJun 25, 03:59 UTC6h 15m
2026-06-24 UAL2743 - Jun 24, 14:09 UTCJun 24, 18:44 UTC4h 35m
2026-06-23 UAL2679 DEN → ORD Jun 23, 16:14 UTCJun 23, 21:54 UTC5h 40m
2026-06-23 UAL887 LIM → EWR Jun 23, 06:03 UTCJun 23, 13:58 UTC7h 55m
2026-06-23 UAL887 LIM → EWR Jun 23, 06:03 UTCJun 23, 13:41 UTC7h 38m
2026-06-22 UAL886 EWR → LIM Jun 22, 21:19 UTCJun 23, 01:04 UTC3h 45m
2026-06-22 UAL2301 ORD → EWR Jun 22, 14:14 UTCJun 22, 15:45 UTC1h 30m
2026-06-22 UAL2301 ORD → EWR Jun 22, 14:15 UTCJun 22, 15:40 UTC1h 25m
2026-06-21 UAL119 ORD → EDI Jun 21, 11:40 UTCJun 21, 12:10 UTC30m
2026-06-21 UAL119 ORD → EDI Jun 21, 11:43 UTCJun 21, 19:34 UTC7h 51m
2026-06-21 UAL119 ORD → EDI Jun 21, 11:43 UTCJun 21, 19:15 UTC7h 32m
2026-06-21 UAL118 ORD → EDI Jun 21, 00:19 UTCJun 21, 07:25 UTC7h 5m
2026-06-20 UAL119 ORD → EDI Jun 20, 11:30 UTCJun 20, 19:40 UTC8h 10m
2026-06-20 UAL118 ORD → EDI Jun 20, 01:37 UTCJun 20, 08:09 UTC6h 32m
2026-06-20 UAL118 ORD → EDI Jun 20, 01:09 UTCJun 20, 08:14 UTC7h 5m
2026-06-19 UAL289 EWR → RDU Jun 19, 08:44 UTCJun 19, 09:14 UTC30m
2026-06-19 UAL289 EWR → RDU Jun 19, 08:47 UTCJun 19, 16:19 UTC7h 32m
2026-06-19 UAL289 EWR → RDU Jun 19, 08:47 UTCJun 19, 16:04 UTC7h 17m
2026-06-18 UAL288 DCA → ORD Jun 18, 23:45 UTCJun 19, 06:35 UTC6h 49m
2026-06-18 UAL913 - Jun 18, 12:00 UTCJun 18, 18:10 UTC6h 10m
2026-06-18 UAL912 ORD → KEF Jun 18, 04:45 UTCJun 18, 10:30 UTC5h 45m
2026-06-17 UAL2788 DEN → EWR Jun 17, 21:53 UTCJun 18, 01:52 UTC3h 59m

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 N19117 page for operator, model, and routing details .

Mode-S A16E7D frequently asked

What is Mode-S code A16E7D?
A16E7D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N19117.
Where is Mode-S A16E7D registered?
Mode-S code A16E7D 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 A16E7D broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A16E7D, octal 50267175, decimal 10,579,581.
What flights does A16E7D operate?
Mode-S A16E7D has broadcast 20 distinct callsigns, including UAL289, UAL1558, UAL1340, UAL119, UAL118.