sensors Transponder directory
Mode-S transponder codes
Each aircraft broadcasts a permanent 24-bit hex address assigned by its country of registration. Browse the most-broadcast transponders in the last 30 days.
| # | Mode-S | Registration | Type | Broadcasts | Last seen |
|---|---|---|---|---|---|
| 1 | 347253 | EC-NSR | AGUSTA AW-139 | 27 | 2026-04-14 |
| 2 | ACEBBE | N9310F | CESSNA 208 Caravan | 27 | 2026-04-14 |
| 3 | A56A56 | N448WN | BOEING 737-700 | 23 | 2026-04-14 |
| 4 | AA6BED | N7704B | BOEING 737-700 | 23 | 2026-04-13 |
| 5 | 4601FC | OH-ATO | ATR-72-500 | 22 | 2026-04-14 |
| 6 | A264A4 | N253WN | BOEING 737-700 | 22 | 2026-04-13 |
| 7 | A318EA | N299WN | BOEING 737-700 | 22 | 2026-04-13 |
| 8 | AC578C | N8947Q | - | 22 | 2026-04-14 |
| 9 | 469596 | SX-ELV | ATR-72-600 | 21 | 2026-04-14 |
| 10 | 47873F | LN-DYM | BOEING 737-800 | 21 | 2026-04-14 |
| 11 | 4A08E9 | YR-BGI | BOEING 737-700 | 21 | 2026-04-14 |
| 12 | 4CA741 | EI-EBZ | BOEING 737-800 | 21 | 2026-04-14 |
| 13 | A2D76A | N282WN | BOEING 737-700 | 21 | 2026-04-13 |
| 14 | A871D4 | N643QX | EMBRAER ERJ-170-200 (long wing) | 21 | 2026-04-14 |
| 15 | ABB245 | N8528Q | BOEING 737-800 | 21 | 2026-04-14 |
| 16 | AC0B96 | N8752Q | BOEING 737 MAX 8 | 21 | 2026-04-13 |
| 17 | AC3B0F | N8876Q | BOEING 737 MAX 8 | 21 | 2026-04-14 |
| 18 | AC3F2F | N8889Q | BOEING 737 MAX 8 | 21 | 2026-04-14 |
| 19 | ACF0DA | N933AM | AIRBUS A-321 | 21 | 2026-04-13 |
| 20 | C0607D | C-GKOA | SHORT Skyvan | 21 | 2026-04-14 |
| 21 | 400E14 | G-EZAV | AIRBUS A-319 | 20 | 2026-04-14 |
| 22 | 407CD8 | G-LMTC | ATR-72-600 | 20 | 2026-04-14 |
| 23 | 44028C | OE-INI | AIRBUS A-320 | 20 | 2026-04-14 |
| 24 | 44047D | OE-INL | AIRBUS A-320 | 20 | 2026-04-14 |
| 25 | 4601F3 | OH-ATF | ATR-72-500 | 20 | 2026-04-14 |
| 26 | 4601F4 | OH-ATG | ATR-72-500 | 20 | 2026-04-14 |
| 27 | 4601F8 | OH-ATK | ATR-72-500 | 20 | 2026-04-14 |
| 28 | 46B838 | SX-NAX | AIRBUS A-321neo | 20 | 2026-04-14 |
| 29 | 46BC4F | SX-OBO | ATR-72-600 | 20 | 2026-04-14 |
| 30 | 478363 | LN-RDZ | DE HAVILLAND DHC-8-400 Dash 8 | 20 | 2026-04-14 |
| 31 | 47A0BF | LN-ENU | BOEING 737-800 | 20 | 2026-04-14 |
| 32 | 48C12B | SP-RKL | BOEING 737-800 | 20 | 2026-04-14 |
| 33 | 4CA2BF | EI-DLB | BOEING 737-800 | 20 | 2026-04-14 |
| 34 | 4CA80C | EI-EKL | BOEING 737-800 | 20 | 2026-04-14 |
| 35 | 4CA97B | EI-EST | BOEING 737-800 | 20 | 2026-04-14 |
| 36 | 4CAE56 | EI-IJF | BOEING 737 MAX 8 | 20 | 2026-04-14 |
| 37 | 4CAF94 | EI-FPW | BOMBARDIER Regional Jet CRJ-900 | 20 | 2026-04-14 |
| 38 | 4D221E | 9H-QEB | BOEING 737-800 | 20 | 2026-04-14 |
| 39 | A196C8 | N201LV | BOEING 737-700 | 20 | 2026-04-14 |
| 40 | A5AA78 | N464WN | BOEING 737-700 | 20 | 2026-04-13 |
| 41 | AB5E6C | N8310C | BOEING 737-800 | 20 | 2026-04-13 |
| 42 | ABBD8D | N8559Q | BOEING 737-800 | 20 | 2026-04-14 |
| 43 | ABC058 | N8562Z | BOEING 737-800 | 20 | 2026-04-13 |
| 44 | ABD57E | N8614M | BOEING 737-800 | 20 | 2026-04-14 |
| 45 | ABE4B9 | N8657B | BOEING 737-800 | 20 | 2026-04-14 |
| 46 | AC3A60 | N8871Q | BOEING 737 MAX 8 | 20 | 2026-04-14 |
| 47 | AC3E80 | N8884Q | BOEING 737 MAX 8 | 20 | 2026-04-14 |
| 48 | AC41F3 | N8892S | BOEING 737 MAX 8 | 20 | 2026-04-14 |
| 49 | 020176 | CN-NMQ | AIRBUS A-320 | 19 | 2026-04-14 |
| 50 | 344295 | EC-LQV | ATR-72-600 | 19 | 2026-04-14 |
| 51 | 345543 | EC-MRI | BOMBARDIER Regional Jet CRJ-1000 | 19 | 2026-04-14 |
| 52 | 345613 | EC-MTN | AIRBUS A-319 | 19 | 2026-04-14 |
| 53 | 347481 | EC-NZR | BOEING 737-800 | 19 | 2026-04-14 |
| 54 | 400FE0 | G-EZBO | AIRBUS A-319 | 19 | 2026-04-14 |
| 55 | 40653A | G-EZGK | AIRBUS A-319 | 19 | 2026-04-14 |
| 56 | 407180 | G-JZBD | BOEING 737-800 | 19 | 2026-04-14 |
| 57 | 440037 | OE-IJR | AIRBUS A-320 | 19 | 2026-04-14 |
| 58 | 4400E3 | OE-IVS | AIRBUS A-320 | 19 | 2026-04-14 |
| 59 | 440159 | OE-INA | AIRBUS A-320 | 19 | 2026-04-14 |
| 60 | 4409C0 | OE-IVA | AIRBUS A-320 | 19 | 2026-04-14 |
| 61 | 461F63 | OH-LXB | AIRBUS A-320 | 19 | 2026-04-14 |
| 62 | 46BC4A | SX-OBJ | ATR-72-600 | 19 | 2026-04-14 |
| 63 | 46D276 | SX-TSV | - | 19 | 2026-04-14 |
| 64 | 471D66 | HA-LDM | AIRBUS A-321neo | 19 | 2026-04-14 |
| 65 | 471DAF | HA-LGH | AIRBUS A-321neo | 19 | 2026-04-14 |
| 66 | 471DB8 | HA-LGQ | AIRBUS A-321neo | 19 | 2026-04-14 |
| 67 | 471DBA | HA-LGS | AIRBUS A-321neo | 19 | 2026-04-14 |
| 68 | 47808B | LN-WIC | DE HAVILLAND DHC-8-100 Dash 8 | 19 | 2026-04-14 |
| 69 | 4785C0 | LN-WDH | DE HAVILLAND DHC-8-400 Dash 8 | 19 | 2026-04-14 |
| 70 | 4785C2 | LN-WDF | DE HAVILLAND DHC-8-400 Dash 8 | 19 | 2026-04-14 |
| 71 | 478D83 | LN-WDR | DE HAVILLAND DHC-8-400 Dash 8 | 19 | 2026-04-14 |
| 72 | 484C1B | PH-EZG | EMBRAER ERJ-190-100 | 19 | 2026-04-14 |
| 73 | 48520B | PH-HXC | BOEING 737-800 | 19 | 2026-04-14 |
| 74 | 48AF0E | SP-LVO | BOEING 737 MAX 8 | 19 | 2026-04-14 |
| 75 | 48C131 | SP-RKS | BOEING 737-800 | 19 | 2026-04-14 |
| 76 | 48C2B0 | SP-RZR | BOEING 737 MAX 8 | 19 | 2026-04-14 |
| 77 | 48C2B1 | SP-RZS | BOEING 737 MAX 8 | 19 | 2026-04-14 |
| 78 | 48E9F0 | SP-RNL | BOEING 737-800 | 19 | 2026-04-14 |
| 79 | 4951CA | CS-TNJ | AIRBUS A-320 | 19 | 2026-04-14 |
| 80 | 495293 | CS-TTS | AIRBUS A-319 | 19 | 2026-04-14 |
| 81 | 4A068B | YR-ATK | ATR-72-600 | 19 | 2026-04-14 |
| 82 | 4AB565 | SE-MKE | ATR-72-600 | 19 | 2026-04-14 |
| 83 | 4ACA53 | SE-RRS | BOEING 737-800 | 19 | 2026-04-14 |
| 84 | 4ACA79 | SE-RSY | EMBRAER ERJ-190-200 | 19 | 2026-04-14 |
| 85 | 4CA256 | EI-DHA | BOEING 737-800 | 19 | 2026-04-14 |
| 86 | 4CA304 | EI-DLY | BOEING 737-800 | 19 | 2026-04-14 |
| 87 | 4CA73F | EI-EBX | BOEING 737-800 | 19 | 2026-04-14 |
| 88 | 4CAD51 | EI-HDK | ATR-72-600 | 19 | 2026-04-14 |
| 89 | 4CAE68 | EI-IJT | BOEING 737 MAX 8 | 19 | 2026-04-14 |
| 90 | 4CAE69 | EI-IJV | BOEING 737 MAX 8 | 19 | 2026-04-14 |
| 91 | 4CAE9D | EI-IKW | BOEING 737 MAX 8 | 19 | 2026-04-14 |
| 92 | 4CAEE6 | EI-ILF | BOEING 737 MAX 8 | 19 | 2026-04-14 |
| 93 | 4D201F | 9H-WNR | AIRBUS A-321neo | 19 | 2026-04-14 |
| 94 | 4D2143 | 9H-WZB | AIRBUS A-321 | 19 | 2026-04-14 |
| 95 | 4D21EB | 9H-QAC | BOEING 737-800 | 19 | 2026-04-14 |
| 96 | 4D225D | 9H-QDN | BOEING 737-800 | 19 | 2026-04-14 |
| 97 | 4D22B6 | 9H-LAX | AIRBUS A-320 | 19 | 2026-04-14 |
| 98 | 4D22BA | 9H-IBJ | AIRBUS A-320 | 19 | 2026-04-14 |
| 99 | 4D2349 | 9H-VUJ | BOEING 737 MAX 8 | 19 | 2026-04-14 |
| 100 | 4D2385 | 9H-VUX | BOEING 737 MAX 8 | 19 | 2026-04-14 |
What is a Mode-S transponder code?
A Mode-S transponder code, also known as an ICAO 24-bit address or hex code, is a permanent identifier broadcast by every aircraft equipped with an ADS-B or Mode-S transponder. The code is assigned by the country where the aircraft is first registered, from blocks defined in ICAO Annex 10 Volume III.
Unlike a callsign (which changes per flight) or a registration (which can change if an aircraft is sold to an operator in another country), the Mode-S code stays with the airframe for the duration of its registration in a given country. Flight trackers use it as the canonical identifier for position reports, callsign history, and ownership correlation.