US Fleet Momentum — Winners & Losers
Which US operators and airframe families are growing or shrinking, from 128 operator-family fleets of five or more US-registered tails. Labels come from FAA registry net change alone (2025-07-16..2026-07-16); BTS T-100 departures and measured ADS-B activity are shown alongside as corroboration — never merged into the label. Computed 2026-07-20.
Growing (44)registry net change ≥ +3 tails, or ≥ +2 and ≥ +5% of the year-ago fleet
| Operator | Family | Fleet | Adds 12mo | Removals 12mo | Net | Net % | T-100 dep YoY | ADS-B 90d / prior |
|---|---|---|---|---|---|---|---|---|
| AMERICAN AIRLINES | 737 | 210 | 29 | 0 | +29 | +16.0% | +2.5% | 202 / 202 |
| UNITED AIRLINES | A320 family | 199 | 30 | 2 | +28 | +16.4% | +6.0% | 170 / 172 |
| SKYWEST AIRLINES | CRJ | 335 | 24 | 5 | +19 | +6.0% | +15.0% | 265 / 262 |
| AMERICAN AIRLINES | E-Jet | 150 | 18 | 0 | +18 | +13.6% | — | 143 / 143 |
| DELTA AIR LINES | A320 family | 271 | 23 | 7 | +16 | +6.3% | +2.4% | 259 / 256 |
| UNITED AIRLINES | 737 | 461 | 15 | 0 | +15 | +3.4% | +6.1% | 457 / 457 |
| JETBLUE AIRWAYS | A220 | 65 | 15 | 0 | +15 | +30.0% | +53.3% | 58 / 58 |
| UNITED AIRLINES | 787 | 89 | 13 | 0 | +13 | +17.1% | +8.7% | 83 / 83 |
| CSI AVIATION | CRJ | 13 | 13 | 0 | +13 | — | — | 2 / 2 |
| SKYWEST AIRLINES | E-Jet | 225 | 12 | 0 | +12 | +5.6% | +3.7% | 219 / 220 |
| DELTA AIR LINES | 737 | 208 | 11 | 0 | +11 | +5.6% | +0.8% | 206 / 206 |
| DELTA AIR LINES | A220 | 63 | 10 | 0 | +10 | +18.9% | +20.1% | 58 / 56 |
| UNITED PARCEL SERVICE | 767 | 56 | 10 | 0 | +10 | +21.7% | +12.2% | 53 / 53 |
| AVIATION INVENTORY RESOURCES | Saab 340 | 22 | 10 | 0 | +10 | +83.3% | — | 4 / 4 |
| BREEZE AVIATION GROUP | A220 | 13 | 10 | 0 | +10 | +333.3% | +52.1% | 9 / 9 |
| SOUTHWEST AIRLINES | 737 | 729 | 51 | 42 | +9 | +1.2% | −0.8% | 693 / 704 |
| JETBLUE AIRWAYS | A320 family | 211 | 9 | 0 | +9 | +4.5% | −2.0% | 208 / 207 |
| REPUBLIC AIRWAYS | E-Jet | 170 | 9 | 0 | +9 | +5.6% | +8.9% | 162 / 166 |
| AMERICAN AIRLINES | CRJ | 151 | 9 | 0 | +9 | +6.3% | — | 140 / 138 |
| DELTA AIR LINES | A350 | 34 | 9 | 0 | +9 | +36.0% | +10.8% | 33 / 33 |
| MARTINAIRE AVIATION | Cessna Caravan | 24 | 9 | 0 | +9 | +60.0% | — | 23 / 23 |
| AIRCRAFT STRUCTURES INTERNATIONAL | Cessna Caravan | 23 | 9 | 0 | +9 | +64.3% | — | 2 / 1 |
| AMERICAN AIRLINES | A320 family | 254 | 8 | 0 | +8 | +3.3% | −2.5% | 249 / 249 |
| SLATE AIRCRAFT | CRJ | 8 | 8 | 0 | +8 | — | — | 2 / 3 |
| FEDERAL EXPRESS | 767 | 152 | 6 | 0 | +6 | +4.1% | −6.8% | 150 / 150 |
| DELTA AIR LINES | A330 | 70 | 6 | 0 | +6 | +9.4% | +13.7% | 70 / 70 |
| UNICAL AVIATION | 737 | 6 | 6 | 0 | +6 | — | — | — / 1 |
| LOGOS AVIATION | CRJ | 6 | 6 | 0 | +6 | — | — | — |
| US GOVERNMENT | Cessna Caravan | 6 | 6 | 0 | +6 | — | — | 1 / 1 |
| AMERICAN AIRLINES | 787 | 43 | 5 | 0 | +5 | +13.2% | +9.6% | 43 / 43 |
| CARGO AIRCRAFT MANAGEMENT | 767 | 91 | 6 | 2 | +4 | +4.6% | — | 75 / 74 |
| UNITED PARCEL SERVICE | 757 | 72 | 4 | 0 | +4 | +5.9% | +18.2% | 72 / 71 |
| GOLD COAST AVIATION | CRJ | 14 | 6 | 2 | +4 | +40.0% | — | 1 / 1 |
| CBG | ERJ 135/145 | 10 | 4 | 0 | +4 | +66.7% | — | 10 / 10 |
| ALLEGIANT AIR | 737 | 9 | 4 | 0 | +4 | +80.0% | +538.0% | 8 / 8 |
| ALASKA AIRLINES | 737 | 228 | 12 | 9 | +3 | +1.3% | +1.9% | 222 / 222 |
| DELUX PUBLIC CHARTER | ERJ 135/145 | 73 | 3 | 0 | +3 | +4.3% | +21.0% | 51 / 50 |
| ALPINE AVIATION | Beech 1900 | 60 | 3 | 0 | +3 | +5.3% | — | 46 / 49 |
| FEDERAL EXPRESS | ATR | 45 | 3 | 0 | +3 | +7.1% | — | 39 / 41 |
| AMAZON.COM SERVICES | 767 | 13 | 3 | 0 | +3 | +30.0% | — | 13 / 13 |
| JETRAN | 777 | 9 | 3 | 0 | +3 | +50.0% | — | 3 / 1 |
| KALITTA AIR | 747 | 27 | 2 | 0 | +2 | +8.0% | −17.7% | 22 / 22 |
| UNITED PARCEL SERVICE | 747 | 25 | 2 | 0 | +2 | +8.7% | −1.0% | 25 / 25 |
| CORPORATE FLIGHT MANAGEMENT INC DBA | ERJ 135/145 | 10 | 2 | 0 | +2 | +25.0% | — | 3 / 4 |
US-registered fleets only, operators as FAA registrant names — tails held by leasing trusts are not visible at operator level. Registry net change is the trailing 12 months (2025-07-16..2026-07-16); ownership transfers that keep the N-number leave no deregistration trace, so removals are undercounted. T-100 covers scheduled revenue service as reported to BTS at the carrier level (2025-04..2026-03 vs 2024-04..2025-03); owned-but-outsourced fleets (e.g. mainline-owned regional jets) show no mainline activity. ADS-B counts are distinct tails observed flying (2026-04-21..2026-07-19 vs 2026-01-21..2026-04-20; coverage since 2025-12) — an observation count, not a fleet truth: absence of ADS-B coverage is not evidence an aircraft is idle. A dash means no data, never zero. Aircraft activity data © adsb.lol contributors, made available under the Open Database License (ODbL).
Shrinking (7)registry net change ≤ −3 tails, or ≤ −2 and ≤ −5% of the year-ago fleet
| Operator | Family | Fleet | Adds 12mo | Removals 12mo | Net | Net % | T-100 dep YoY | ADS-B 90d / prior |
|---|---|---|---|---|---|---|---|---|
| BOEING | 737 | 39 | 4 | 13 | −9 | −18.8% | — | 9 / 10 |
| UAS TRANSERVICES | Metro | 26 | 0 | 9 | −9 | −25.7% | — | 14 / 15 |
| DELTA AIR LINES | 717 | 90 | 1 | 4 | −3 | −3.2% | +4.1% | 79 / 78 |
| UNITED PARCEL SERVICE | MD-11 | 31 | 0 | 3 | −3 | −8.8% | −41.2% | — |
| BOEING | 787 | 6 | 0 | 3 | −3 | −33.3% | — | 6 / 6 |
| MISSION AVIATION FELLOWSHIP | Cessna Caravan | 6 | 2 | 4 | −2 | −25.0% | — | 3 / 4 |
| JETRAN | A330 | 5 | 1 | 3 | −2 | −28.6% | — | 4 / — |
US-registered fleets only, operators as FAA registrant names — tails held by leasing trusts are not visible at operator level. Registry net change is the trailing 12 months (2025-07-16..2026-07-16); ownership transfers that keep the N-number leave no deregistration trace, so removals are undercounted. T-100 covers scheduled revenue service as reported to BTS at the carrier level (2025-04..2026-03 vs 2024-04..2025-03); owned-but-outsourced fleets (e.g. mainline-owned regional jets) show no mainline activity. ADS-B counts are distinct tails observed flying (2026-04-21..2026-07-19 vs 2026-01-21..2026-04-20; coverage since 2025-12) — an observation count, not a fleet truth: absence of ADS-B coverage is not evidence an aircraft is idle. A dash means no data, never zero. Aircraft activity data © adsb.lol contributors, made available under the Open Database License (ODbL).
Stable (77)inside the churn band — single-tail moves are never labeled
| Operator | Family | Fleet | Adds 12mo | Removals 12mo | Net | Net % | T-100 dep YoY | ADS-B 90d / prior |
|---|---|---|---|---|---|---|---|---|
| FEDERAL EXPRESS | Cessna Caravan | 211 | 2 | 0 | +2 | +1.0% | +1.6% | 200 / 198 |
| DELTA AIR LINES | CRJ | 154 | 0 | 0 | 0 | 0.0% | — | 141 / 141 |
| UNITED AIRLINES | E-Jet | 117 | 0 | 0 | 0 | 0.0% | — | 117 / 117 |
| AMERICAN AIRLINES | ERJ 135/145 | 114 | 0 | 1 | −1 | −0.9% | — | 72 / 71 |
| FEDERAL EXPRESS | 757 | 112 | 0 | 0 | 0 | 0.0% | +4.0% | 73 / 73 |
| DELTA AIR LINES | 757 | 110 | 8 | 8 | 0 | 0.0% | −16.3% | 87 / 88 |
| UNITED AIRLINES | 777 | 95 | 0 | 0 | 0 | 0.0% | −5.9% | 86 / 88 |
| UNITED AIRLINES | ERJ 135/145 | 84 | 0 | 2 | −2 | −2.3% | — | 58 / 59 |
| FEDERAL EXPRESS | A300 | 68 | 0 | 0 | 0 | 0.0% | −21.8% | 49 / 50 |
| UNITED AIRLINES | 757 | 63 | 0 | 0 | 0 | 0.0% | −11.1% | 60 / 60 |
| AMERICAN AIRLINES | 777 | 62 | 0 | 0 | 0 | 0.0% | −1.3% | 61 / 61 |
| DELTA AIR LINES | 767 | 62 | 0 | 0 | 0 | 0.0% | −2.0% | 57 / 58 |
| FEDERAL EXPRESS | MD-11 | 61 | 0 | 0 | 0 | 0.0% | −60.6% | 11 / — |
| UNITED AIRLINES | 767 | 54 | 0 | 0 | 0 | 0.0% | +2.9% | 53 / 53 |
| UNITED PARCEL SERVICE | A300 | 51 | 0 | 0 | 0 | 0.0% | +4.6% | 48 / 50 |
| HORIZON AIR INDUSTRIES | E-Jet | 49 | 2 | 0 | +2 | +4.3% | +12.0% | 47 / 47 |
| SPIRIT AIRLINES | A320 family | 48 | 0 | 0 | 0 | 0.0% | −28.0% | 39 / 43 |
| ATLAS AIR | 747 | 45 | 0 | 0 | 0 | 0.0% | +2.8% | 42 / 42 |
| DELTA AIR LINES | E-Jet | 41 | 0 | 0 | 0 | 0.0% | — | 41 / 41 |
| SUN COUNTRY | 737 | 36 | 1 | 0 | +1 | +2.9% | +5.1% | 36 / 36 |
| AIR WISCONSIN AIRLINES | CRJ | 32 | 0 | 0 | 0 | 0.0% | −97.8% | 7 / 7 |
| C C & E I | 767 | 31 | 0 | 0 | 0 | 0.0% | — | 31 / 31 |
| JETRAN | MD-80 | 27 | 0 | 0 | 0 | 0.0% | — | 1 / — |
| ALLEGIANT AIR | A320 family | 25 | 0 | 0 | 0 | 0.0% | −4.5% | 26 / 26 |
| RANDIGO | Cessna Caravan | 23 | 0 | 0 | 0 | 0.0% | — | 22 / 22 |
| CBG | Metro | 23 | 0 | 0 | 0 | 0.0% | — | 14 / 14 |
| FEDERAL EXPRESS | 777 | 23 | 0 | 0 | 0 | 0.0% | +1.4% | 23 / 23 |
| UNITED AIRLINES | CRJ | 23 | 1 | 0 | +1 | +4.5% | — | 19 / 19 |
| HAWAIIAN AIRLINES | 717 | 21 | 0 | 0 | 0 | 0.0% | −25.8% | 19 / 19 |
| UAS TRANSERVICES | Beech 1900 | 21 | 0 | 1 | −1 | −4.5% | — | 17 / 18 |
| WRIGHT AIR SERVICE | Cessna Caravan | 20 | 0 | 0 | 0 | 0.0% | −3.2% | 19 / 18 |
| BERING AIR | Cessna Caravan | 17 | 0 | 0 | 0 | 0.0% | −4.7% | 15 / 15 |
| C C & E I | 747 | 17 | 0 | 0 | 0 | 0.0% | — | 17 / 17 |
| KALITTA CHARTERS II | 737 | 15 | 1 | 0 | +1 | +7.1% | −44.3% | 12 / 11 |
| HAWAIIAN AIRLINES | A320 family | 14 | 0 | 0 | 0 | 0.0% | −16.9% | 14 / 14 |
| SOUTHERN AIRWAYS PACIFIC | Cessna Caravan | 14 | 0 | 0 | 0 | 0.0% | — | 11 / 11 |
| FEDERAL EXPRESS | DC-10 | 13 | 0 | 0 | 0 | 0.0% | — | — |
| REDDING AERO ENTERPRISES | Cessna Caravan | 12 | 0 | 0 | 0 | 0.0% | — | 12 / 11 |
| AERSALE | 757 | 12 | 0 | 1 | −1 | −7.7% | — | — / 1 |
| ALASKA CENTRAL EXPRESS | Beech 1900 | 11 | 0 | 0 | 0 | 0.0% | −13.8% | 11 / 10 |
| BERRY AVIATION | EMB-120 | 11 | 0 | 0 | 0 | 0.0% | — | 8 / 8 |
| CORPORATE FLIGHT MANAGEMENT | ERJ 135/145 | 11 | 0 | 0 | 0 | 0.0% | — | 9 / 9 |
| CORPORATE FLIGHT MANAGEMENT INC DBA | CRJ | 10 | 0 | 0 | 0 | 0.0% | — | 9 / 8 |
| CORSAIR TWO | MD-80 | 10 | 0 | 0 | 0 | 0.0% | — | 7 / 7 |
| DAS PLANE | ERJ 135/145 | 10 | 0 | 0 | 0 | 0.0% | — | 10 / 10 |
| KALININ PARTNERS | Cessna Caravan | 10 | 1 | 0 | +1 | +11.1% | — | 10 / 10 |
| PAC BLUE AEROSPACE | MD-80 | 9 | 0 | 0 | 0 | 0.0% | — | — |
| ARCTIC ONE | MD-80 | 9 | 0 | 0 | 0 | 0.0% | — | 5 / 5 |
| HAWAIIAN AIRLINES | A330 | 9 | 0 | 0 | 0 | 0.0% | −8.5% | 9 / 9 |
| ATLAS AIR | 767 | 8 | 0 | 0 | 0 | 0.0% | −66.5% | 8 / 8 |
| BEMIDJI AVIATION SERVICES | Metro | 8 | 0 | 0 | 0 | 0.0% | — | 6 / 6 |
| CAREER AVIATION | Metro | 8 | 0 | 0 | 0 | 0.0% | — | 6 / 6 |
| KALITTA AIR | 767 | 8 | 0 | 0 | 0 | 0.0% | — | 6 / 6 |
| PLANEMASTERS | Cessna Caravan | 7 | 0 | 0 | 0 | 0.0% | — | 5 / 5 |
| BOEING | 767 | 7 | 0 | 0 | 0 | 0.0% | — | — / 1 |
| ISR AVIATION | Cessna Caravan | 7 | 1 | 1 | 0 | 0.0% | — | 8 / 8 |
| KAMAKA AIR | Cessna Caravan | 7 | 0 | 0 | 0 | 0.0% | — | 5 / 5 |
| SKY WEST AIRLINES | CRJ | 7 | 0 | 0 | 0 | 0.0% | +15.0% | 7 / 7 |
| UNITED AIRLINES | 747 | 7 | 0 | 0 | 0 | 0.0% | — | — |
| US DEPARTMENT OF HOMELAND SECURITY | Dash 8 | 7 | 0 | 0 | 0 | 0.0% | — | 6 / 5 |
| USA JET AIRLINES | MD-80 | 7 | 0 | 0 | 0 | 0.0% | −6.7% | 7 / 7 |
| SCHUMAN CARRIAGE | Cessna Caravan | 6 | 0 | 0 | 0 | 0.0% | — | 5 / 6 |
| GAS/WILSON | Metro | 6 | 0 | 0 | 0 | 0.0% | — | — |
| NV5 GEOSPATIAL | Cessna Caravan | 6 | 0 | 0 | 0 | 0.0% | — | 6 / 6 |
| OMEGA AIR | DC-10 | 6 | 0 | 0 | 0 | 0.0% | — | — |
| AM PM SERVICES LLC - BLUE SKY SERIES | CRJ | 6 | 0 | 0 | 0 | 0.0% | — | — |
| CARGO AIRCRAFT MANAGEMENT | A330 | 6 | 3 | 4 | −1 | −14.3% | — | 2 / 2 |
| KOLOB CANYONS AIR SERVICES | Metro | 6 | 0 | 0 | 0 | 0.0% | — | 4 / 4 |
| UAS TRANSERVICES | EMB-120 | 6 | 0 | 1 | −1 | −14.3% | — | 5 / 5 |
| PLANEMASTERS | Beech 1900 | 5 | 0 | 0 | 0 | 0.0% | — | 5 / 5 |
| ROYAL AIR FREIGHT | EMB-110 | 5 | 0 | 0 | 0 | 0.0% | — | 3 / 3 |
| CARGO AIRCRAFT MANAGEMENT | A320 family | 5 | 0 | 1 | −1 | −16.7% | — | 2 / 1 |
| HAWAIIAN AIRLINES | 787 | 5 | 1 | 0 | +1 | +25.0% | +33.5% | 5 / 5 |
| KALITTA CHARTERS II | 727 | 5 | 0 | 1 | −1 | −16.7% | — | — |
| LOGISTIC AIR | 747 | 5 | 0 | 0 | 0 | 0.0% | — | — |
| LOGISTIC AIR | 777 | 5 | 0 | 0 | 0 | 0.0% | — | — |
| MCNEELY CHARTER SERVICE | Metro | 5 | 0 | 0 | 0 | 0.0% | — | 4 / 4 |
US-registered fleets only, operators as FAA registrant names — tails held by leasing trusts are not visible at operator level. Registry net change is the trailing 12 months (2025-07-16..2026-07-16); ownership transfers that keep the N-number leave no deregistration trace, so removals are undercounted. T-100 covers scheduled revenue service as reported to BTS at the carrier level (2025-04..2026-03 vs 2024-04..2025-03); owned-but-outsourced fleets (e.g. mainline-owned regional jets) show no mainline activity. ADS-B counts are distinct tails observed flying (2026-04-21..2026-07-19 vs 2026-01-21..2026-04-20; coverage since 2025-12) — an observation count, not a fleet truth: absence of ADS-B coverage is not evidence an aircraft is idle. A dash means no data, never zero. Aircraft activity data © adsb.lol contributors, made available under the Open Database License (ODbL).
Family rollup (30)whole US-registered fleet per family, all registrants including trusts
| Family | Label | Fleet | New entrants 12mo | Permanent exits 12mo | Net | T-100 dep YoY | ADS-B 90d / prior |
|---|---|---|---|---|---|---|---|
| 737 | growing | 2,765 | 156 | 111 | +45 | +1.9% | 2,529 / 2,554 |
| A320 family | growing | 2,044 | 91 | 47 | +44 | −4.2% | 1,812 / 1,832 |
| CRJ | shrinking | 1,026 | 0 | 28 | −28 | +4.6% | 680 / 682 |
| Cessna Caravan | shrinking | 984 | 24 | 72 | −48 | −1.5% | 828 / 811 |
| E-Jet | shrinking | 851 | 29 | 37 | −8 | +4.9% | 795 / 801 |
| 767 | growing | 572 | 13 | 7 | +6 | −0.2% | 507 / 508 |
| 757 | shrinking | 443 | 0 | 13 | −13 | −8.3% | 318 / 318 |
| ERJ 135/145 | shrinking | 386 | 0 | 12 | −12 | +14.7% | 282 / 288 |
| 777 | shrinking | 292 | 0 | 12 | −12 | +0.7% | 203 / 205 |
| A220 | growing | 218 | 39 | 0 | +39 | +37.1% | 192 / 189 |
| 787 | growing | 201 | 20 | 3 | +17 | +10.4% | 191 / 191 |
| 747 | shrinking | 189 | 0 | 4 | −4 | −3.2% | 147 / 149 |
| Metro | shrinking | 171 | 0 | 10 | −10 | −100.0% | 91 / 95 |
| Beech 1900 | shrinking | 159 | 0 | 4 | −4 | −12.4% | 115 / 118 |
| A330 | stable | 155 | 6 | 8 | −2 | +16.0% | 139 / 130 |
| A300 | stable | 120 | 0 | 1 | −1 | −6.0% | 98 / 101 |
| MD-80 | shrinking | 116 | 0 | 12 | −12 | −24.9% | 24 / 28 |
| 717 | shrinking | 111 | 0 | 4 | −4 | +2.0% | 98 / 97 |
| MD-11 | shrinking | 108 | 0 | 4 | −4 | −51.2% | 13 / — |
| Dash 8 | shrinking | 95 | 0 | 16 | −16 | −88.1% | 45 / 42 |
| Saab 340 | shrinking | 76 | 0 | 3 | −3 | −44.0% | 36 / 36 |
| ATR | shrinking | 61 | 0 | 11 | −11 | −66.9% | 47 / 47 |
| A350 | growing | 41 | 5 | 0 | +5 | +10.8% | 40 / 40 |
| EMB-120 | stable | 41 | 0 | 2 | −2 | — | 26 / 26 |
| 727 | shrinking | 33 | 0 | 3 | −3 | −7.4% | 4 / 5 |
| DC-10 | stable | 31 | 0 | 0 | 0 | — | 7 / — |
| EMB-110 | stable | 13 | 0 | 0 | 0 | — | 3 / 4 |
| A340 | stable | 10 | 0 | 1 | −1 | — | 1 / 1 |
| A310 | stable | 4 | 0 | 0 | 0 | — | — |
| A380 | stable | 4 | 0 | 0 | 0 | — | — |
US-registered fleets only, operators as FAA registrant names — tails held by leasing trusts are not visible at operator level. Registry net change is the trailing 12 months (2025-07-16..2026-07-16); ownership transfers that keep the N-number leave no deregistration trace, so removals are undercounted. T-100 covers scheduled revenue service as reported to BTS at the carrier level (2025-04..2026-03 vs 2024-04..2025-03); owned-but-outsourced fleets (e.g. mainline-owned regional jets) show no mainline activity. ADS-B counts are distinct tails observed flying (2026-04-21..2026-07-19 vs 2026-01-21..2026-04-20; coverage since 2025-12) — an observation count, not a fleet truth: absence of ADS-B coverage is not evidence an aircraft is idle. A dash means no data, never zero. Family rows count NEW-TO-REGISTRY entrants only (factory-new deliveries plus registry re-entries; where the FAA has not yet filed a build year it is inferred from adjacent serial numbers) against permanent registry exits — intra-US transfers are excluded, so a used sale cannot inflate a family. Carriers that stop reporting to BTS show as −100% without their fleet necessarily parking. Aircraft activity data © adsb.lol contributors, made available under the Open Database License (ODbL).
Methodology
Every number on this page comes from the precomputed fleet-momentum table; nothing is edited by hand and nothing is a forecast. Adds are currently-registered tails whose FAA registration certificate was issued to the operator inside the trailing 12-month window — new deliveries, imports, and used transfers in. Same-airframe re-registrations by the same operator (serial-number matched, so a recycled N-number never counts as growth) are excluded. Removals are FAA deregistrations attributed to the operator's registrant name: scrap, export, and transfers that cancelled the N-number.
Labels use registry net change only: at least ±3 tails, or ±2 tails when that is at least 5% of the year-ago fleet — validated against the live distribution, where most fleets sit within one tail of flat. T-100 and ADS-B columns corroborate; they never change a label. Operators are FAA registrant names, so aircraft registered to leasing trusts and finance entities are outside the per-operator view even when an airline flies them daily — fleets shown here are floors, not totals.
Aircraft activity data © adsb.lol contributors, made available under the Open Database License (ODbL).