| Business | Phone |
| National Telecommunication 179 Admiral Cochrane Dr, Annapolis 21401 | (410) 224-4300 |
| Senator Barbara A Mikulski 60 West St # 202, Annapolis 21401 | (410) 263-1805 |
| Us Animal Plant/Health Inspctn 1598 Whitehall Rd, Annapolis 21401 | (410) 349-9708 |
| Us Ecological Svc 177 Admiral Cochrane Dr, Annapolis 21401 | (410) 573-4593 |
| Us Fisheries Resource Office 1 Usi Plz, Annapolis 21401 | (410) 263-2604 |
| Us Fisheries Resource Office 177 Admiral Cochrane Dr, Annapolis 21401 | (410) 263-2604 |
| Us Joint Spectrum Ctr 2004 Turbot Ldg, Annapolis 21402 | (410) 293-2456 |