| Location | Years of operation |
| Aklavik, Northwest Territories (RCN) | 1949 - 1961 |
| Alert, Nunavut (RCAF/RCCS/SRS/CFIOG) - experimental ops began in 1956 | 1958 - present |
| Alliford Bay, British Columbia (RCN @ RCAF) | 1941 - 1943 |
| Amherst, Nova Scotia (RCCS) | 1941 - 1942 |
| Augsburg, Germany (SRS detachment) | 1989 - 1993 |
| Bermuda (RCN/SRS) | 1963 - 1993 |
| Botwood, Newfoundland (DOT) | 1939 - 1946 |
| Cap D’Espoir, Quebec (RCN @ RCAF) | 1941 - 1946? |
| Cheltenham, UK (CANSLO @ GCHQ + SRS/CFIOG det from 1953?) | 1953 - present |
| Churchill, Manitoba (RCN/SRS) | 1948 - 1968 |
| Coal Harbour, British Columbia (RCN @ RCAF) | 1941 - 1942 |
| Coverdale, New Brunswick (RCN/SRS) | 1944 - 1971 |
| Darwin, Australia: McMillan’s Road Camp (RCCS) | 1945 - 1945 |
| Eastcote (London), UK (CANSLO @ GCHQ) | 1949 - 1953 |
| Esquimalt, British Columbia (RCN intercept for RN) | 1925 - 1940? |
| Esquimalt, British Columbia (MARPAC support element) | ? - present? |
| Flin Flon, Manitoba (AFTAC only) | 1959? - ? |
| Forrest, Manitoba (DOT) | 1940 - 1942 |
| Fort Chimo (now Kuujjuaq), Quebec (RCN) | 1949 - 1952 |
| Fort Gordon, Georgia, USA (CFIOG det @ Gordon RSOC) | 2003 - present |
| Fort Meade, Maryland, USA (CANSLO @ NSA HQ + SRS/CFIOG det from 1993) | 1956 - present |
| Frobisher Bay (now Iqaluit), Nunavut (RCN) | 1953 - 1967 |
| Gander, Newfoundland (RCN/SRS/CFIOG) | 1942 - present |
| Gloucester, Ontario (RCN HF-DF/training/admin site) | 1943 - 1972 |
| Gordon Head, British Columbia (RCN) | 1940 - 1945 |
| Grande Prairie, Alberta (RCCS) | 1942 - 1947 |
| Halifax, Nova Scotia (MARLANT support element) | ? - present? |
| Harbour Grace, Newfoundland (RCN) | 1940 - 1946? |
| Hartlen Point, Nova Scotia (DOT) | 1941 - 1946 |
| Inuvik, NWT (RCN/SRS) | 1961 - 1986 |
| Kingston, Ontario (SRS/CFIOG training) | 1972 - present |
| Kingston, Ontario (21 EW Regt/2 EW Sqn of 1 CSR/1CDHSR/CFJSR) | ? - present |
| Kingston, Ontario (Res EW Sqn/772 EW Sqn) - merged with 21 EW Regt in 2010 | 1986 - 2010 |
| Ladner, British Columbia (RCCS/SRS) | 1949 - 1971 |
| Leitrim, Ontario (RCCS/SRS/CFIOG) | 1942 - present |
| Louisbourg, Nova Scotia (DOT) | 1939 - 1946 |
| Lulu Island, British Columbia (DOT) (AKA Steveston) | 1944? - 1945 |
| Masset, British Columbia (RCN/SRS/CFIOG) | 1942 - 1945 and 1949 - present |
| Nanaimo, British Columbia (DF outstation for Victoria) | 1942? - ? |
| Northwest, Virginia, USA (SRS/CFIOG det @ NSGA Northwest) | 1997 - 2001 |
| Ottawa, Ontario (various headquarters) | 1939 - present |
| Ottawa, Ontario (DOT) | 1939 - 1945? |
| Ottawa, Ontario (771 CRS) | 1987 - 2002 |
| Pennfield, New Brunswick (RCN @ RCAF) | 1941 - 1945? |
| Point Grey, British Columbia (DOT) | 1940 - 1945? |
| Portage la Prairie, Manitoba (RCN @ RCAF) | 1941 - 1945? |
| Prince Rupert, British Columbia (RCN) | 1946 - 1948? |
| Resolute, Nunavut (RCAF) - experimental site only | 1956 - 1956? |
| Riske Creek, British Columbia (RCCS; never operational) | 1944 - 1946 |
| Rivers, Manitoba (RCN @ RCAF) | 1941 - 1945? |
| Rockcliffe, Ontario (RCCS) | 1939 – 1942 |
| San Antonio, Texas, USA (SRS/CFIOG det @ Medina RSOC) | 1995 - present |
| Shediac, New Brunswick (DOT) | 1939 - 1946 |
| St. Hubert, Quebec (DOT) | 1939 - 1946 |
| Ste. Hyacinthe, Quebec (training) | 1944 - 1945? |
| Strathburn, Ontario (DOT) | 1939 - 1945? |
| Sydney, Nova Scotia (RCN @ RCAF) | 1941 - 1945? |
| Ucluelet, British Columbia (RCN @ RCAF) | 1941 - 1942 |
| Victoria, British Columbia (RCCS) | 1942 - 1949 |
| Washington, DC, USA (CANSLO @ AFSA/NSA) | 1949 - 1956 |
| Whidbey Island, Washington, USA (SRS/CFIOG det @ NSGA Whidbey Island) | 1997 - 2002 |
| Whitehorse, Yukon Territory (RCAF/SRS) | 1948- 1968 |
| Winnipeg, Manitoba (DOT) | 1942 - 1945 |
| Winnipeg, Manitoba (1 Cdn Air Div support element) | ? - present? |