Apparatus

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sensors Mode-S transponder

A98219

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N711ZX · BOEING 757-200 · operated by DELTA AIR LINES INC

Hex
A98219
Octal
52301031
Decimal
11,108,889
Country
US
Tail
N711ZX
Type
B752
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
362
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S A98219.

Country allocation

The ICAO 24-bit address A98219 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
DAL1857 - 31 2026-07-20
DAL403 Delta Air Lines 16 2026-07-19
DAL556 Delta Air Lines 15 2026-07-22
DAL363 Delta Air Lines 14 2026-07-24
DAL383 Delta Air Lines 13 2026-07-23
DAL329 Delta Air Lines 13 2026-07-26
DAL667 Delta Air Lines 12 2026-07-24
DAL1521 - 12 2026-07-20
DAL721 Delta Air Lines 11 2026-07-21
DAL987 Delta Air Lines 9 2026-07-25
DAL361 Delta Air Lines 9 2026-05-30
DAL1732 Delta Air Lines 9 2026-06-16
DAL1327 Delta Air Lines 9 2026-06-01
DAL2012 Delta Air Lines 8 2026-07-21
DAL826 Delta Air Lines 7 2026-07-21
DAL639 Delta Air Lines 7 2026-06-22
DAL437 - 7 2026-06-21
DAL318 - 7 2026-06-22
DAL1856 - 7 2026-07-19
DAL791 - 6 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL329 SJU → MSP Jul 26, 21:10 UTCJul 26, 22:15 UTC1h 5m
2026-07-26 DAL329 SJU → MSP Jul 26, 15:10 UTCJul 26, 18:55 UTC3h 45m
2026-07-26 DAL695 BOS → LAS Jul 26, 10:50 UTCJul 26, 12:55 UTC2h 5m
2026-07-26 DAL695 BOS → LAS Jul 26, 10:48 UTCJul 26, 12:49 UTC2h 1m
2026-07-25 DAL2166 MSP → CLE Jul 25, 22:35 UTCJul 26, 03:30 UTC4h 55m
2026-07-25 DAL2166 MSP → CLE Jul 25, 22:30 UTCJul 26, 03:27 UTC4h 57m
2026-07-25 DAL2004 TPA → BOS Jul 25, 15:10 UTCJul 25, 20:40 UTC5h 30m
2026-07-25 DAL2004 TPA → BOS Jul 25, 15:09 UTCJul 25, 20:31 UTC5h 22m
2026-07-25 DAL987 PDX → JFK Jul 25, 11:30 UTCJul 25, 13:35 UTC2h 5m
2026-07-25 DAL987 PDX → JFK Jul 25, 11:28 UTCJul 25, 13:28 UTC2h 0m
2026-07-24 DAL724 ATL → BTV Jul 24, 23:35 UTCJul 25, 03:55 UTC4h 20m
2026-07-24 DAL363 ATL → MEX Jul 24, 15:50 UTCJul 24, 21:35 UTC5h 45m
2026-07-24 DAL2112 BOS → MSY Jul 24, 07:50 UTCJul 24, 12:40 UTC4h 50m
2026-07-24 DAL667 JFK → SLC Jul 24, 00:05 UTCJul 24, 06:20 UTC6h 15m
2026-07-23 DAL383 ATL → BOS Jul 23, 16:30 UTCJul 23, 21:15 UTC4h 45m
2026-07-23 DAL667 JFK → SLC Jul 23, 00:30 UTCJul 23, 06:05 UTC5h 35m
2026-07-22 DAL556 LGA → ORD Jul 22, 04:40 UTCJul 22, 05:25 UTC45m
2026-07-21 DAL2012 MSP → RDU Jul 21, 21:40 UTCJul 22, 01:40 UTC4h 0m
2026-07-21 DAL721 SFO → ATL Jul 21, 14:10 UTCJul 21, 18:05 UTC3h 55m
2026-07-21 DAL826 BOS → DTW Jul 21, 01:15 UTCJul 21, 05:00 UTC3h 45m
2026-07-20 DAL1521 - Jul 20, 19:35 UTCJul 20, 23:50 UTC4h 15m
2026-07-20 DAL1857 - Jul 20, 13:35 UTCJul 20, 17:30 UTC3h 55m
2026-07-20 DAL1857 DTW → SNA Jul 20, 13:32 UTCJul 20, 17:30 UTC3h 58m
2026-07-19 DAL1856 - Jul 19, 19:20 UTCJul 19, 23:20 UTC4h 0m
2026-07-19 DAL403 ATL → RDU Jul 19, 12:15 UTCJul 19, 17:15 UTC5h 0m
2026-07-19 DAL556 LGA → ORD Jul 19, 04:15 UTCJul 19, 08:15 UTC4h 0m
2026-07-19 DAL556 LGA → ORD Jul 19, 04:11 UTCJul 19, 09:12 UTC5h 1m
2026-07-18 DAL2012 ATL → SNA Jul 18, 21:45 UTCJul 19, 01:40 UTC3h 55m
2026-07-18 DAL721 SFO → ATL Jul 18, 14:10 UTCJul 18, 18:25 UTC4h 15m
2026-07-18 DAL721 SFO → ATL Jul 18, 14:10 UTCJul 18, 18:19 UTC4h 9m
2026-07-18 DAL826 BOS → DTW Jul 18, 01:45 UTCJul 18, 05:35 UTC3h 51m
2026-07-17 DAL1521 - Jul 17, 19:25 UTCJul 17, 23:25 UTC4h 0m
2026-07-17 DAL1521 SNA → ATL Jul 17, 19:22 UTCJul 17, 23:24 UTC4h 2m
2026-07-17 DAL1857 - Jul 17, 13:40 UTCJul 17, 17:35 UTC3h 55m
2026-07-16 DAL1856 - Jul 16, 18:50 UTCJul 16, 22:49 UTC4h 0m
2026-07-16 DAL1857 - Jul 16, 13:40 UTCJul 16, 17:30 UTC3h 50m
2026-07-16 DAL1857 DTW → SNA Jul 16, 13:37 UTCJul 16, 17:28 UTC3h 51m
2026-07-15 DAL1856 - Jul 15, 18:55 UTCJul 15, 22:55 UTC4h 0m
2026-07-15 DAL403 JFK → SNA Jul 15, 11:55 UTCJul 15, 16:45 UTC4h 50m
2026-07-15 DAL556 - Jul 15, 04:15 UTCJul 15, 09:05 UTC4h 50m
2026-07-14 DAL2012 ATL → SNA Jul 14, 21:55 UTCJul 15, 01:55 UTC3h 59m
2026-07-14 DAL2326 - Jul 14, 14:50 UTCJul 14, 15:35 UTC45m
2026-07-14 DAL2326 JAX → ATL Jul 14, 14:49 UTCJul 14, 15:40 UTC51m
2026-07-14 DAL2326 - Jul 14, 12:40 UTCJul 14, 13:25 UTC45m
2026-07-13 DAL1521 - Jul 13, 20:40 UTCJul 14, 00:35 UTC3h 55m
2026-07-12 DAL403 JFK → SNA Jul 12, 12:01 UTCJul 12, 16:50 UTC4h 50m
2026-07-11 DAL791 PHX → JFK Jul 11, 20:40 UTCJul 12, 01:05 UTC4h 25m
2026-07-11 DAL791 - Jul 11, 14:15 UTCJul 11, 19:00 UTC4h 45m
2026-07-11 DAL556 - Jul 11, 04:30 UTCJul 11, 09:05 UTC4h 35m
2026-07-10 DAL2012 - Jul 10, 22:10 UTCJul 11, 02:00 UTC3h 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 N711ZX page for operator, model, and routing details .

Mode-S A98219 frequently asked

What is Mode-S code A98219?
A98219 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N711ZX.
Where is Mode-S A98219 registered?
Mode-S code A98219 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 A98219 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A98219, octal 52301031, decimal 11,108,889.
What flights does A98219 operate?
Mode-S A98219 has broadcast 20 distinct callsigns, including DAL1857, DAL403, DAL556, DAL363, DAL383.