Apparatus

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sensors Mode-S transponder

A8E20F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N6712B · BOEING 757-200 · operated by DELTA AIR LINES INC

Hex
A8E20F
Octal
52161017
Decimal
11,067,919
Country
US
Tail
N6712B
Type
B752
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
451
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A8E20F.

Country allocation

The ICAO 24-bit address A8E20F 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
DAL982 - 12 2026-07-15
DAL1830 Delta Air Lines 10 2026-05-25
DAL983 - 9 2026-07-15
DAL894 Delta Air Lines 9 2026-05-05
DAL406 - 9 2026-07-13
DAL1089 - 9 2026-06-23
DAL1873 Delta Air Lines 8 2026-07-07
DAL1831 Delta Air Lines 8 2026-05-25
DAL1525 - 8 2026-07-09
DAL980 Delta Air Lines 7 2026-06-10
DAL2345 - 7 2026-07-11
DAL1894 - 7 2026-07-07
DAL1768 Delta Air Lines 7 2026-06-13
DAL744 - 6 2026-07-10
DAL1591 Delta Air Lines 6 2026-07-26
DAL1217 - 6 2026-07-12
DAL824 Delta Air Lines 5 2026-04-22
DAL1946 Delta Air Lines 5 2026-04-15
DAL1937 Delta Air Lines 5 2026-07-26
DAL1902 Delta Air Lines 5 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1756 SJO → ATL Jul 26, 19:20 UTCJul 26, 21:45 UTC2h 25m
2026-07-26 DAL1937 BOS → MSP Jul 26, 14:05 UTCJul 26, 17:30 UTC3h 25m
2026-07-26 DAL1726 ATL → MSN Jul 26, 10:25 UTCJul 26, 11:25 UTC1h 0m
2026-07-26 DAL1726 ATL → MSN Jul 26, 10:23 UTCJul 26, 11:24 UTC1h 1m
2026-07-26 DAL1591 RSW → MSP Jul 26, 02:00 UTCJul 26, 03:10 UTC1h 10m
2026-07-25 DAL1703 BOS → MSY Jul 25, 20:20 UTCJul 25, 23:20 UTC3h 0m
2026-07-25 DAL1703 BOS → MSY Jul 25, 20:16 UTCJul 25, 23:21 UTC3h 5m
2026-07-25 DAL1776 TPA → DTW Jul 25, 15:30 UTCJul 25, 18:20 UTC2h 50m
2026-07-25 DAL1463 IAH → MSP Jul 25, 12:25 UTCJul 25, 13:25 UTC1h 0m
2026-07-25 DAL1162 ATL → MCO Jul 25, 04:05 UTCJul 25, 05:05 UTC1h 0m
2026-07-25 DAL1425 ATL → TPA Jul 25, 01:30 UTCJul 25, 02:40 UTC1h 10m
2026-07-24 DAL1425 ATL → TPA Jul 24, 21:35 UTCJul 24, 22:35 UTC1h 0m
2026-07-24 DAL927 MSP → LAS Jul 24, 15:55 UTCJul 24, 19:40 UTC3h 45m
2026-07-23 DAL544 ATL → LGA Jul 23, 23:05 UTCJul 24, 02:55 UTC3h 50m
2026-07-23 DAL1005 ATL → DTW Jul 23, 20:10 UTCJul 23, 21:40 UTC1h 30m
2026-07-23 DAL1336 DTW → ATL Jul 23, 16:10 UTCJul 23, 17:25 UTC1h 15m
2026-07-23 DAL1336 DTW → ATL Jul 23, 11:50 UTCJul 23, 13:05 UTC1h 15m
2026-07-23 DAL8844 YYZ → DTW Jul 23, 06:30 UTCJul 23, 07:50 UTC1h 20m
2026-07-23 DAL8878 BFI → BOS Jul 23, 04:35 UTCJul 23, 05:45 UTC1h 10m
2026-07-22 DAL8878 BFI → BOS Jul 22, 23:40 UTCJul 23, 00:20 UTC40m
2026-07-22 DAL8772 PHX → BHM Jul 22, 19:50 UTCJul 22, 21:40 UTC1h 50m
2026-07-22 DAL1213 - Jul 22, 15:15 UTCJul 22, 15:45 UTC30m
2026-07-22 DAL1213 MCO → ATL Jul 22, 15:13 UTCJul 22, 16:11 UTC58m
2026-07-22 DAL1213 ATL → MCO Jul 22, 12:45 UTCJul 22, 13:45 UTC1h 0m
2026-07-22 DAL857 - Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-21 DAL544 ATL → LGA Jul 21, 23:30 UTCJul 22, 03:20 UTC3h 50m
2026-07-21 DAL334 - Jul 21, 18:35 UTCJul 21, 21:55 UTC3h 20m
2026-07-21 DAL334 - Jul 21, 13:30 UTCJul 21, 17:15 UTC3h 45m
2026-07-21 DAL651 DTW → PHL Jul 21, 03:27 UTCJul 21, 04:52 UTC1h 25m
2026-07-21 DAL651 DTW → PHL Jul 21, 03:30 UTCJul 21, 04:55 UTC1h 25m
2026-07-20 DAL386 SEA → JFK Jul 20, 22:20 UTCJul 21, 01:50 UTC3h 29m
2026-07-20 DAL813 MSP → BOS Jul 20, 17:05 UTCJul 20, 20:35 UTC3h 30m
2026-07-20 DAL1433 MSP → DTW Jul 20, 14:35 UTCJul 20, 15:40 UTC1h 5m
2026-07-20 DAL377 JFK → SFO Jul 20, 06:45 UTCJul 20, 11:35 UTC4h 50m
2026-07-19 DAL377 JFK → SFO Jul 19, 23:30 UTCJul 20, 05:00 UTC5h 30m
2026-07-19 DAL2415 SLC → SFO Jul 19, 19:10 UTCJul 19, 21:45 UTC2h 35m
2026-07-19 DAL2415 SLC → SFO Jul 19, 14:30 UTCJul 19, 17:45 UTC3h 15m
2026-07-18 DAL2274 PHX → MSP Jul 18, 21:00 UTCJul 18, 23:50 UTC2h 50m
2026-07-18 DAL2274 MSP → PHX Jul 18, 17:00 UTCJul 18, 19:40 UTC2h 40m
2026-07-18 DAL1308 BOS → MSP Jul 18, 12:25 UTCJul 18, 15:10 UTC2h 45m
2026-07-18 DAL2614 ORD → LGA Jul 18, 01:34 UTCJul 18, 03:45 UTC2h 11m
2026-07-17 DAL2238 JFK → MIA Jul 17, 21:15 UTCJul 18, 00:00 UTC2h 45m
2026-07-17 DAL2238 JFK → MIA Jul 17, 16:49 UTCJul 17, 19:30 UTC2h 40m
2026-07-17 DAL1308 BOS → MSP Jul 17, 12:45 UTCJul 17, 15:25 UTC2h 40m
2026-07-17 DAL1308 BOS → MSP Jul 17, 12:42 UTCJul 17, 15:20 UTC2h 38m
2026-07-16 DAL430 LAS → BNH Jul 16, 17:49 UTCJul 16, 22:35 UTC4h 45m
2026-07-16 DAL777 ATL → LAS Jul 16, 12:40 UTCJul 16, 16:00 UTC3h 20m
2026-07-16 DAL1168 - Jul 16, 09:30 UTCJul 16, 10:50 UTC1h 20m
2026-07-16 DAL1168 FLL → ATL Jul 16, 09:27 UTCJul 16, 10:50 UTC1h 23m
2026-07-16 DAL1229 ATL → FLL Jul 16, 02:55 UTCJul 16, 04:20 UTC1h 25m

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 N6712B page for operator, model, and routing details .

Mode-S A8E20F frequently asked

What is Mode-S code A8E20F?
A8E20F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N6712B.
Where is Mode-S A8E20F registered?
Mode-S code A8E20F 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 A8E20F 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 A8E20F, octal 52161017, decimal 11,067,919.
What flights does A8E20F operate?
Mode-S A8E20F has broadcast 20 distinct callsigns, including DAL982, DAL1830, DAL983, DAL894, DAL406.