| Business | Phone |
| National Optical Astronomy 950 N Cherry Ave, Tucson 85719 | (520) 318-8000 |
| National Radio Astronomy 949 N Cherry Ave, Tucson 85721 | (520) 882-8250 |
| National Solar Observatory 950 N Cherry Ave, Tucson 85719 | (520) 318-8294 |
| Kitt Peak Visitor Ctr 950 N Cherry Ave, Tucson 85719 | (520) 318-8726 |