Towered · Class D surface area
Casper/Natrona County International (KCPR) radio calls
Casper, WYICAO KCPR · FAA CPR
Casper/Natrona County International is a towered airport in Casper, WY. You will taxi with Ground on 121.9 and work Casper Tower on 118.3, after listening to the ATIS on 126.15. The tower operates 0500-2100 local.
The airport has a Class D surface area: two-way radio communication with the tower must be established before entering. Published hours: CLASS D SVC 0500-2100; OTHER TIMES CLASS E.
Frequencies
| ATIS | 126.15 |
|---|---|
| Clearance Delivery | 121.9 |
| GroundCasper Ground | 121.9 |
| TowerCasper Tower | 118.3 |
| CTAF | 118.3 |
| UNICOM | 122.95 |
Airport
- Runways
- 03 · 21 · 08 · 26
- Elevation
- 5,344 ft
- Tower hours
- 0500-2100 local
- Position
- 42.906, -106.464
Towered airport with a Class D surface area
Sample calls at KCPR
Casper/Natrona County International has a Class D surface area: establish two-way communication with the tower before entering (AIM 3-2-5 b 3). A reply that uses your call sign, even "standby", establishes it; "aircraft calling, standby" does not. The calls below use runway 03; the tower assigns the runway in use on the day.
The aircraft is the AIM’s own example, Cessna Three One Six Zero Foxtrot; the squawk codes, altitudes and headings are illustrative. Frequencies, station names and runway numbers are this airport’s, from the FAA data.
- Listen to the ATIS on 126.15 first and note the letter; "with Information (letter)" on your first call lets the controller skip the weather (JO 7110.65 3-10-1).
- YouCasper Clearance, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, VFR to the north, request clearance.
- ATCCessna Six Zero Foxtrot, Casper Clearance, maintain VFR at or below two thousand five hundred, departure frequency one two zero point one, squawk four six one two.
- YouAt or below two thousand five hundred, departure one two zero point one, squawk four six one two, Cessna Six Zero Foxtrot.
- YouCasper Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
- ATCCessna Six Zero Foxtrot, Casper Ground, runway zero three, taxi via Alpha, hold short of runway zero three.
- YouRunway zero three, taxi via Alpha, hold short of runway zero three, Cessna Six Zero Foxtrot.
- The runway, any clearance onto a runway and every hold-short instruction are read back (AIM 4-3-18 a 9). Stay on Ground through the run-up and switch to Tower when ready (AIM 4-3-14 a).
- YouCasper Tower, Cessna Six Zero Foxtrot, holding short runway zero three, ready for departure, northbound.
- ATCCessna Six Zero Foxtrot, Casper Tower, runway zero three, cleared for takeoff.
- YouRunway zero three, cleared for takeoff, Cessna Six Zero Foxtrot.
- Inbound: call the tower about 15 miles out, before the Class D boundary (AIM 4-3-2 a).
- YouCasper Tower, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand, with Information Bravo, landing Casper.
- ATCCessna Six Zero Foxtrot, Casper Tower, enter left downwind runway zero three, report midfield downwind.
- YouEnter left downwind runway zero three, report midfield, Cessna Six Zero Foxtrot.
- YouCasper Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway zero three.
- ATCCessna Six Zero Foxtrot, runway zero three, cleared to land, wind two seven zero at eight.
- YouRunway zero three, cleared to land, Cessna Six Zero Foxtrot.
- The wind is information: acknowledged, not read back. Exit at the first available taxiway or as told, taxi clear of the hold-short markings, and change to Ground only when the tower says (AIM 4-3-21).
- ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact Casper Ground one two one point niner.
- YouExit next taxiway, one two one point niner, Cessna Six Zero Foxtrot.
- YouCasper Ground, Cessna Six Zero Foxtrot, clear of runway zero three, taxi to the ramp.
If things change. The tower operates 0500-2100 local. Outside those hours the airport is a non-towered field: self-announce on the CTAF, 118.3 with the airport name first and last, and the surface area reverts to Class E or Class G as published in the Chart Supplement.
Phraseology from AIM 4-2-3; 4-3-18 a 9; 4-3-14; 4-3-21; 4-4-7 b; 4-1-18 a 3; 3-2-5 b 3; 4-3-2 a. What TowerTalk grades against →
The calls you will make here
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Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Sep 3, 2026. Training use only. Always verify against a current Chart Supplement and sectional chart before flight; frequencies change. TowerTalk is not affiliated with the FAA. Report a discrepancy.
