| Most Used Uplink Msg Elements - Jan08 to Dec08 | Msg# | Total | % Used |
| CONTACT unit frequency | 117 | 64355 | 14.330 |
| CLIMB TO AND MAINTAIN level | 20 | 54134 | 12.054 |
| AT position CONTACT unit frequency | 118 | 44146 | 9.830 |
| free text | 169 | 39710 | 8.842 |
| REQUEST POSITION REPORT | 147 | 37834 | 8.425 |
| REPORT LEVEL level | 129 | 31889 | 7.101 |
| CLEARED TO DEVIATE UP TO distance direction OF ROUTE | 82 | 27183 | 6.053 |
| REPORT BACK ON ROUTE | 127 | 26149 | 5.823 |
| AT position MONITOR unit frequency | 121 | 23193 | 5.165 |
| SQUAWK code | 123 | 20572 | 4.581 |
| STANDBY | 1 | 14547 | 3.239 |
| UNABLE | 0 | 7856 | 1.749 |
| DUE TO TRAFFIC | 166 | 7349 | 1.636 |
| MAINTAIN BLOCK level THROUGH level | 30 | 7147 | 1.591 |
| MONITOR unit frequency | 120 | 4805 | 1.070 |
| CLIMB TO REACH level BY time | 26 | 3843 | 0.856 |
| PROCEED DIRECT TO position | 74 | 2855 | 0.636 |
| MAINTAIN level | 19 | 2808 | 0.625 |
| WHEN READY | 164 | 2292 | 0.510 |
| WHEN CAN YOU ACCEPT level | 148 | 2258 | 0.503 |
| RADAR SERVICES TERMINATED | 154 | 1973 | 0.439 |
| DESCEND TO AND MAINTAIN level | 23 | 1687 | 0.376 |
| CLIMB TO REACH level BY position | 27 | 1636 | 0.364 |
| CONFIRM SPEED | 134 | 1479 | 0.329 |
| AT time CONTACT unit frequency | 119 | 1419 | 0.316 |
| AT position PROCEED DIRECT TO position | 77 | 1408 | 0.314 |
| WHEN ABLE PROCEED DIRECT TO position | 75 | 1344 | 0.299 |
| RESUME NORMAL SPEED | 116 | 1300 | 0.289 |
| REQUEST DEFERRED | 2 | 1094 | 0.244 |
| ROGER | 3 | 1045 | 0.233 |
| MAINTAIN speed | 106 | 861 | 0.192 |
| CLIMB TO AND MAINTAIN BLOCK level TO level | 31 | 788 | 0.175 |
| CONFIRM NEXT WAYPOINT ETA | 141 | 694 | 0.155 |
| MAINTAIN speed OR GREATER | 108 | 495 | 0.110 |
| MAINTAIN speed OR LESS | 109 | 444 | 0.099 |
| DUE TO AIRSPACE RESTRICTION | 167 | 415 | 0.092 |
| EXPECT CLIMB AT time | 7 | 408 | 0.091 |
| CROSS position AT time | 51 | 406 | 0.090 |
| RADAR CONTACT LOST | 156 | 395 | 0.088 |
| CLEARED TO position VIA route clearance | 79 | 390 | 0.087 |
| DESCEND TO REACH level BY time | 28 | 341 | 0.076 |
| CLEARED routeclearance | 80 | 315 | 0.070 |
| AT position CLEARED route clearance | 83 | 267 | 0.059 |
| REPORT REACHING BLOCK level TO level | 180 | 251 | 0.056 |
| CAN YOU ACCEPT level AT time | 150 | 218 | 0.049 |
| CAN YOU ACCEPT level AT position | 149 | 205 | 0.046 |
| CRUISE CLIMB TO level | 34 | 163 | 0.036 |
| CROSS position AT OR AFTER time | 53 | 159 | 0.035 |
| CONFIRM ASSIGNED LEVEL | 135 | 155 | 0.035 |
| DESCEND TO REACH level BY position | 29 | 155 | 0.035 |
| AT time PROCEED DIRECT TO position | 76 | 147 | 0.033 |
| REJOIN ROUTE BY time | 69 | 136 | 0.030 |
| AT position CLIMB TO AND MAINTAIN level | 22 | 132 | 0.029 |
| CONFIRM ASSIGNED ROUTE | 137 | 131 | 0.029 |
| REPORT DISTANCE to from position | 181 | 126 | 0.028 |
| AT time CLIMB TO AND MAINTAIN level | 21 | 125 | 0.028 |
| CROSS position AT OR BEFORE time | 52 | 117 | 0.026 |
| AFFIRM | 4 | 109 | 0.024 |
| CONFIRM LEVEL | 133 | 105 | 0.023 |
| AT time MONITOR unit frequency | 122 | 97 | 0.022 |
| DISREGARD | 168 | 80 | 0.018 |
| EXPECT CLIMB AT position | 8 | 71 | 0.016 |
| REJOIN ROUTE BY position | 68 | 66 | 0.015 |
| CONFIRM ENSUING WAYPOINT | 142 | 61 | 0.014 |
| REPORT LEAVING level | 128 | 57 | 0.013 |
| AT time DESCEND TO AND MAINTAIN level | 24 | 52 | 0.012 |
| NEGATIVE | 5 | 52 | 0.012 |
| AT time EXPECT CLIMB TO level | 13 | 52 | 0.012 |
| CHECK STUCK MICROPHONE | 157 | 49 | 0.011 |
| OFFSET distance direction OF ROUTE | 64 | 40 | 0.009 |
| REPORT REACHING level | 175 | 37 | 0.008 |
| CONFIRM NEXT WAYPOINT | 140 | 36 | 0.008 |
| DESCEND TO AND MAINTAIN BLOCK level TO level | 32 | 34 | 0.008 |
| free text urgent | 170 | 30 | 0.007 |
| CONFIRM REQUEST | 143 | 28 | 0.006 |
| EXPECT TO CROSS position AT level | 42 | 26 | 0.006 |
| AT PILOTS DISCRETION | 177 | 24 | 0.005 |
| EXPECT level | 6 | 21 | 0.005 |
| RADAR CONTACT position | 155 | 21 | 0.005 |
| AT time OFFSET distance direction OF ROUTE | 66 | 19 | 0.004 |
| CONFIRM REPORTED WAYPOINT | 139 | 11 | 0.002 |
| EXPECT DESCENT AT time | 9 | 11 | 0.002 |
| REPORT POSITION | 132 | 10 | 0.002 |
| PROCEED BACK ON ROUTE | 67 | 10 | 0.002 |
| AT position OFFSET distance direction OF ROUTE | 65 | 9 | 0.002 |
| CONFIRM ASSIGNED SPEED | 136 | 9 | 0.002 |
| AT position EXPECT CLIMB TO level | 14 | 8 | 0.002 |
| AT position DESCEND TO AND MAINTAIN level | 25 | 8 | 0.002 |
| WHEN CAN YOU ACCEPT speed | 151 | 7 | 0.002 |
| INCREASE SPEED TO speed | 111 | 6 | 0.001 |
| MAINTAIN speed TO speed | 110 | 5 | 0.001 |
| AT position EXPECT speed | 101 | 4 | 0.001 |
| CONFIRM TIME OVER REPORTED WAYPOINT | 138 | 3 | 0.001 |
| CROSS position AT level | 46 | 3 | 0.001 |
| EXPEDITE CLIMB TO level | 36 | 3 | 0.001 |
| EXPECT BACK ON ROUTE BY time | 71 | 3 | 0.001 |
| SQUAWK IDENT | 179 | 3 | 0.001 |
| EXPECT DESCENT AT position | 10 | 3 | 0.001 |
| AT position EXPECT DESCENT TO level | 16 | 3 | 0.001 |
| CROSS position AT OR LESS THAN speed | 56 | 3 | 0.001 |
| REDUCE SPEED TO speed | 113 | 2 | 0.000 |
| REPORT PASSING position | 130 | 2 | 0.000 |
| CLEARED procedure name | 81 | 2 | 0.000 |
| CONFIRM SQUAWK | 144 | 2 | 0.000 |
| INCREASE SPEED TO speed OR GREATER | 112 | 2 | 0.000 |
| AT position EXPECT DIRECT TO position | 88 | 2 | 0.000 |
| EXPECT BACK ON ROUTE BY position | 70 | 2 | 0.000 |
| IMMEDIATELY DESCEND TO level | 39 | 2 | 0.000 |
| CROSS position AT OR GREATER THAN speed | 57 | 2 | 0.000 |
| REDUCE SPEED TO speed OR LESS | 114 | 1 | 0.000 |
| TURN direction HEADING degrees | 94 | 1 | 0.000 |
| REPORT HEADING | 145 | 1 | 0.000 |
| RESUME OWN NAVIGATION | 72 | 1 | 0.000 |
| IMMEDIATELY CLIMB TO level | 38 | 1 | 0.000 |
| CROSS position AT AND MAINTAIN level | 49 | 0 | 0.000 |
| AT time CROSS position AT AND MAINTAIN level | 62 | 0 | 0.000 |
| EXPECT CRUISE CLIMB AT position | 12 | 0 | 0.000 |
| THEN | 165 | 0 | 0.000 |
| ATIS atis code | 158 | 0 | 0.000 |
| REPORT REMAINING FUEL AND PERSONS ON BOARD | 131 | 0 | 0.000 |
| CROSS position AT OR ABOVE level | 47 | 0 | 0.000 |
| CROSS position AT OR BELOW level | 48 | 0 | 0.000 |
| EXPECT FURTHER CLEARANCE AT time | 93 | 0 | 0.000 |
| ALTIMETER altimeter | 153 | 0 | 0.000 |
| MAINTAIN OWN SEPARATION AND VMC | 176 | 0 | 0.000 |
| MAINTAIN PRESENT SPEED | 107 | 0 | 0.000 |
| AT time EXPECT DESCENT TO level | 15 | 0 | 0.000 |
| WHEN CAN YOU ACCEPT distance offset direction OFFSET | 152 | 0 | 0.000 |
| CROSS position BETWEEN level AND level | 50 | 0 | 0.000 |
| CROSS position AT OR AFTER time AT level | 60 | 0 | 0.000 |
| EXPECT procedure name | 99 | 0 | 0.000 |
| EXPECT CRUISE CLIMB AT time | 11 | 0 | 0.000 |
| HOLD AT position MAINTAIN level INBOUND TRACK deg dir | 91 | 0 | 0.000 |
| AT level PROCEED DIRECT TO position | 78 | 0 | 0.000 |
| CROSS position AT OR BEFORE time AT level | 59 | 0 | 0.000 |
| EXPECT DIRECT TO position | 87 | 0 | 0.000 |
| AT time EXPECT speed | 100 | 0 | 0.000 |
| AT time EXPECT DIRECT TO position | 89 | 0 | 0.000 |
| AT time EXPECT CRUISE CLIMB TO level | 17 | 0 | 0.000 |
| AT position EXPECT CRUISE CLIMB TO level | 18 | 0 | 0.000 |
| DO NOT EXCEED speed | 115 | 0 | 0.000 |
| IMMEDIATELY STOP CLIMB AT level | 40 | 0 | 0.000 |
| EXPECT route clearance | 85 | 0 | 0.000 |
| CONTINUE PRESENT HEADING | 96 | 0 | 0.000 |
| AT position FLY HEADING degrees | 97 | 0 | 0.000 |
| SQUAWK MODE CHARLIE | 125 | 0 | 0.000 |
| CRUISE CLIMB ABOVE level | 35 | 0 | 0.000 |
| AT position EXPECT route clearance | 86 | 0 | 0.000 |
| AT level EXPECT speed | 102 | 0 | 0.000 |
| CROSS position AT time AT level | 58 | 0 | 0.000 |
| STOP SQUAWK MODE CHARLIE | 126 | 0 | 0.000 |
| CROSS position BETWEEN time AND time | 54 | 0 | 0.000 |
| EXPEDITE DESCENT TO level | 37 | 0 | 0.000 |
| IMMEDIATELY STOP DESCENT AT level | 41 | 0 | 0.000 |
| AT position CLEARED procedure name | 84 | 0 | 0.000 |
| AT level EXPECT DIRECT TO position | 90 | 0 | 0.000 |
| STOP SQUAWK | 124 | 0 | 0.000 |
| DESCEND AT vertical rate MINIMUM | 173 | 0 | 0.000 |
| CROSS position AT speed | 55 | 0 | 0.000 |
| REPORT GROUND TRACK | 146 | 0 | 0.000 |
| EXPECT TO CROSS position AT OR ABOVE level | 43 | 0 | 0.000 |
| EXPECT TO CROSS position AT OR BELOW level | 44 | 0 | 0.000 |
| EXPECT TO CROSS position AT AND MAINTAIN level | 45 | 0 | 0.000 |
| CROSS position AT AND MAINTAIN level AT speed | 61 | 0 | 0.000 |
| AT time CROSS position AT AND MAINTAIN level AT speed | 63 | 0 | 0.000 |
| HOLD AT position AS PUBLISHED MAINTAIN level | 92 | 0 | 0.000 |
| TURN direction GROUND TRACK degrees | 95 | 0 | 0.000 |
| IMMEDIATELY TURN direction HEADING degrees | 98 | 0 | 0.000 |
| AT time EXPECT speed TO speed | 103 | 0 | 0.000 |
| AT position EXPECT speed TO speed | 104 | 0 | 0.000 |
| AT level EXPECT speed TO speed | 105 | 0 | 0.000 |
| CLIMB AT vertical rate MINIMUM | 171 | 0 | 0.000 |
| CLIMB AT vertical rate MAXIMUM | 172 | 0 | 0.000 |
| DESCEND AT vertical rate MAXIMUM | 174 | 0 | 0.000 |
| CONFIRM ATIS CODE | 182 | 0 | 0.000 |
| Totals | Totals | 449085 | 100.000 |