Telescope phone numbers

Kitt Peak
4-meter control room: 318 8620 and 318 8621
90-inch control room: 318 8690 or 8691
Steward dorm: 318 8690
0.9-meter (36-inch) control room: 318 8637
Main mountain number: 318 8600

Mt. Bigelow
61-inch telescope: 576 1283
Lodge (dorm): 576 1311

Mt. Graham
VATT: 928 348 4768

Mt. Hopkins (MMT)
MMT (control room): 204 1516 (or 670 6747 if that doesn't work)

CTIO
La Serena office: 011 56 51 205200 (from the US)
Cerro Tololo 4-meter control room: 011 56 51 205400 (from the US) or 051 205 400 (within Chile)

Magellan