Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A98D7E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N71411 · BOEING 737-900 · operated by UNITED AIRLINES INC

Hex
A98D7E
Octal
52306576
Decimal
11,111,806
Country
US
Tail
N71411
Type
B739
Broadcasting now · callsign UAL1155 · 24,050 ft
Flights observed
479
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Current position

A98D7E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A98D7E 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
UAL496 - 13 2026-07-15
UAL491 United Airlines 11 2026-07-19
UAL2105 - 11 2026-07-19
UAL1936 - 11 2026-07-17
UAL1563 - 11 2026-07-17
UAL1361 - 11 2026-07-17
UAL1127 - 11 2026-07-12
UAL2215 - 10 2026-07-15
UAL2124 United Airlines 10 2026-07-24
UAL2833 United Airlines 9 2026-07-19
UAL2491 - 9 2026-07-20
UAL1872 - 9 2026-06-18
UAL315 United Airlines 8 2026-07-08
UAL2253 United Airlines 8 2026-07-24
UAL2250 - 8 2026-07-11
UAL2245 - 8 2026-07-16
UAL1609 United Airlines 8 2026-07-24
UAL2662 United Airlines 7 2026-06-18
UAL2304 - 7 2026-07-12
UAL2237 United Airlines 7 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2293 JAX → EWR Jul 26, 19:20 UTCJul 26, 21:30 UTC2h 10m
2026-07-26 UAL2654 BNA → SFO Jul 26, 13:15 UTCJul 26, 17:10 UTC3h 55m
2026-07-26 UAL2654 BNA → SFO Jul 26, 13:17 UTCJul 26, 17:10 UTC3h 53m
2026-07-25 UAL2474 SFO → BOS Jul 25, 23:50 UTCJul 26, 01:55 UTC2h 5m
2026-07-25 UAL462 EWR → PBI Jul 25, 19:40 UTCJul 25, 21:50 UTC2h 10m
2026-07-25 UAL2812 ORD → EWR Jul 25, 16:00 UTCJul 25, 18:15 UTC2h 15m
2026-07-25 UAL2812 ORD → EWR Jul 25, 15:43 UTCJul 25, 18:07 UTC2h 24m
2026-07-25 UAL2078 BOS → ORD Jul 25, 01:10 UTCJul 25, 03:15 UTC2h 5m
2026-07-25 UAL2078 BOS → ORD Jul 25, 01:11 UTCJul 25, 03:14 UTC2h 3m
2026-07-24 UAL1609 IAH → SFO Jul 24, 22:35 UTCJul 24, 23:25 UTC50m
2026-07-24 UAL1388 - Jul 24, 20:00 UTCJul 24, 20:45 UTC45m
2026-07-24 UAL2253 RDU → IAD Jul 24, 17:10 UTCJul 24, 17:55 UTC45m
2026-07-24 UAL575 BOS → ORD Jul 24, 15:05 UTCJul 24, 15:55 UTC50m
2026-07-24 UAL2124 PDX → SFO Jul 24, 12:35 UTCJul 24, 13:20 UTC45m
2026-07-24 UAL1696 SFO → RNO Jul 24, 02:15 UTCJul 24, 03:00 UTC45m
2026-07-23 UAL2124 PDX → SFO Jul 23, 12:35 UTCJul 23, 13:25 UTC50m
2026-07-23 UAL1696 SFO → RNO Jul 23, 01:45 UTCJul 23, 02:30 UTC45m
2026-07-23 UAL1696 SFO → RNO Jul 23, 01:50 UTCJul 23, 02:33 UTC43m
2026-07-22 UAL2293 JAX → EWR Jul 22, 19:20 UTCJul 22, 23:15 UTC3h 55m
2026-07-22 UAL2654 BNA → SFO Jul 22, 13:05 UTCJul 22, 16:55 UTC3h 50m
2026-07-21 UAL3915 BOS → SFO Jul 21, 21:50 UTCJul 22, 00:05 UTC2h 15m
2026-07-21 UAL3915 BOS → SFO Jul 21, 21:40 UTCJul 22, 00:03 UTC2h 23m
2026-07-21 UAL3915 BOS → SFO Jul 21, 20:35 UTCJul 21, 21:00 UTC25m
2026-07-21 UAL2078 - Jul 21, 01:15 UTCJul 21, 03:50 UTC2h 35m
2026-07-21 UAL2078 PHX → EWR Jul 21, 01:11 UTCJul 21, 03:34 UTC2h 23m
2026-07-20 UAL2237 ORD → EWR Jul 20, 19:25 UTCJul 20, 22:15 UTC2h 50m
2026-07-20 UAL2491 - Jul 20, 17:00 UTCJul 20, 17:35 UTC35m
2026-07-20 UAL2491 - Jul 20, 14:55 UTCJul 20, 16:55 UTC2h 0m
2026-07-20 UAL2124 PDX → SFO Jul 20, 12:35 UTCJul 20, 13:30 UTC55m
2026-07-20 UAL1696 - Jul 20, 01:55 UTCJul 20, 02:50 UTC55m
2026-07-20 UAL1696 IAH → MSY Jul 20, 01:50 UTCJul 20, 02:41 UTC51m
2026-07-19 UAL2833 EWR → IAH Jul 19, 21:25 UTCJul 19, 23:25 UTC2h 0m
2026-07-19 UAL8211 - Jul 19, 17:40 UTCJul 19, 20:00 UTC2h 20m
2026-07-19 UAL8211 IAH → RSW Jul 19, 17:40 UTCJul 19, 19:52 UTC2h 12m
2026-07-19 UAL2105 - Jul 19, 15:10 UTCJul 19, 15:55 UTC45m
2026-07-19 UAL491 BZN → DEN Jul 19, 13:00 UTCJul 19, 13:45 UTC45m
2026-07-19 UAL491 BZN → DEN Jul 19, 12:49 UTCJul 19, 13:46 UTC57m
2026-07-19 UAL2449 SJC → IAH Jul 19, 00:00 UTCJul 19, 02:45 UTC2h 45m
2026-07-18 UAL1971 EWR → SAT Jul 18, 20:05 UTCJul 18, 22:40 UTC2h 35m
2026-07-18 UAL2812 - Jul 18, 15:45 UTCJul 18, 17:55 UTC2h 10m
2026-07-18 UAL8118 - Jul 18, 01:10 UTCJul 18, 03:30 UTC2h 21m
2026-07-17 UAL2833 EWR → IAH Jul 17, 21:20 UTCJul 17, 23:10 UTC1h 50m
2026-07-17 UAL2833 EWR → IAH Jul 17, 21:30 UTCJul 17, 23:07 UTC1h 37m
2026-07-17 UAL1361 - Jul 17, 17:40 UTCJul 17, 19:45 UTC2h 5m
2026-07-17 UAL1936 - Jul 17, 13:15 UTCJul 17, 16:00 UTC2h 45m
2026-07-17 UAL1563 - Jul 17, 03:05 UTCJul 17, 05:55 UTC2h 50m
2026-07-17 UAL1609 - Jul 17, 01:00 UTCJul 17, 01:45 UTC45m
2026-07-16 UAL1388 - Jul 16, 22:19 UTCJul 16, 23:20 UTC1h 0m
2026-07-16 UAL1493 - Jul 16, 15:55 UTCJul 16, 18:00 UTC2h 5m
2026-07-16 UAL2245 - Jul 16, 12:34 UTCJul 16, 14:35 UTC2h 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 N71411 page for operator, model, and routing details .

Mode-S A98D7E frequently asked

What is Mode-S code A98D7E?
A98D7E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N71411.
Where is Mode-S A98D7E registered?
Mode-S code A98D7E 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 A98D7E broadcasting right now?
Yes. Mode-S A98D7E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A98D7E, octal 52306576, decimal 11,111,806.
What flights does A98D7E operate?
Mode-S A98D7E has broadcast 20 distinct callsigns, including UAL496, UAL491, UAL2105, UAL1936, UAL1563.