| FOF Code | Description |
| + FU153065103.A | Households and nonprofit organizations; one-to-four-family residential mortgages; asset |
| + FU213065103.A | State and local governments; one-to-four-family residential mortgages; asset |
| + FU223065143.A | State and local government employee defined benefit retirement funds; one-to-four-family residential mortgages; asset |
| + FU313065105.A | Federal government; one-to-four-family residential mortgages; asset |
| + FU403065105.A | Government-sponsored enterprises; one-to-four-family residential mortgages; asset |
| + FU763065105.A | U.S.-chartered depository institutions; one-to-four-family residential mortgages, including farm houses; asset |
| + FU473065100.A | Credit unions; one-to-four-family residential mortgages; asset |
| + FU543065105.A | Life insurance companies; one-to-four-family residential mortgages, including farm houses; asset |
| + FU573065103.A | Private pension funds; one-to-four-family residential mortgages; asset |
| + FU613065105.A | Finance companies; one-to-four-family residential mortgages; asset |
| + FU643065173.A | Mortgage real estate investment trusts; one-to-four-family residential mortgages; asset |
| + FU113065103.A | Nonfinancial noncorporate business; one-to-four-family residential mortgages; asset |
| + FU673065105.A | Issuers of asset-backed securities; one-to-four-family residential mortgages; asset |
| + FU743065103.A | Banks in U.S.-affiliated areas; one-to-four-family residential mortgages; asset |
| + FU753065103.A | Foreign banking offices in the U.S.; one-to-four-family residential mortgages; asset |
| + FU413065105.A | Agency-and GSE-backed mortgage pools; one-to-four-family residential mortgages; asset |
| + FU103065105.A | Nonfinancial corporate business; one-to-four-family residential mortgages; asset |