| A code we live by | 17 |
| 51 is one | 9 |
| 2-D measure | 11 |
| 109 acres, for Vatican City | 27 |
| 1/2 base x height, for a triangle | 33 |
| (Base x height) / 2, for a triangle | 35 |
| "These ___ few of my favorite things" | 47 |
| "These ___ few of my favorite ..." | 44 |
| "The Times They ___-Changin"' (Bob Dylan) | 55 |
| "Riches __ good handmaid, but the worst mistress": Bacon | 66 |
| "Field" hidden in five puzzle answers | 47 |
| "Diamonds --- Girl's Best Friend" | 47 |
| "Clear the ___!" | 26 |
| "__ man" | 18 |
| ''Code'' lead-in | 32 |
| _____ rug | 9 |
| ___ of law (what one might specialize in) | 41 |
| ___ man (frequent article subject in The Onion) | 47 |
| ___ code (phone number starter) | 31 |
| ___ code (part of a phone number) | 33 |
| ___ 51 (ufologist's interest) | 33 |
| ___ 51 (Nevada military base) | 29 |
| ___ 51 (Groom Lake, NV) | 23 |
| ___ 51 (conspiracy theory subject) | 34 |
| __ 51, supposed Nevada UFO cover-up site | 40 |
| __ 51 | 5 |
| Communications debut of 1947 | 28 |
| Three before seven | 18 |
| Prefix for calling | 18 |
| Numbers after 1 | 15 |
| Three-digit number | 18 |
| Phone number prefix | 19 |
| Parenthetical information | 25 |
| Numbers following 1 | 19 |
| Long-distance requirement | 25 |
| Information information | 23 |
| Important prefix | 16 |
| Dialer's need | 17 |
| Certain three-digit number | 26 |
| Certain numerical prefix | 24 |
| 727 in Florida, e.g. | 20 |
| (410) or (212), e.g. | 20 |
| Trio preceding an exchange | 26 |
| Three-digit starter for a dialer | 32 |
| Three-digit ID | 14 |
| Three numbers that are usually in parentheses | 45 |
| Three numbers after 1 | 21 |
| Three digits for dialers | 24 |
| Three digits after 1 | 20 |
| Seattle's 206, e.g. | 23 |
| Regional figure | 15 |
| Prefix with triple digits | 25 |
| Prefix in parentheses | 21 |
| Phone number? | 13 |
| Phone number part | 17 |
| Part of a phone number | 22 |
| Parenthetical figure | 20 |
| Opening number | 14 |
| One often precedes it | 21 |
| Numerical prefix, of a sort | 27 |
| Number prefix | 13 |
| Number after 1? | 15 |
| N.Y.C.'s is 212 | 19 |
| Montana has only one | 20 |
| Long-distance need | 18 |
| Locale identifier | 17 |
| It precedes a phone number | 26 |
| It might be the initial number of callers | 41 |
| It may precede an exchange | 26 |
| Hawaii's is 808 | 19 |
| Hawaii's 808 | 16 |
| Geographical indicator | 22 |
| First three numbers, in some directories | 40 |
| Exchange preceder | 17 |
| Customer-file entry | 19 |
| Customer file entry | 19 |
| Cartoonist Gardner's unlisted number? | 41 |
| Caller's prefix | 19 |
| Call numbers? | 13 |
| Baltimore's 410 | 19 |
| Alaska's 907, e.g. | 22 |
| 800, e.g. | 9 |
| 747 in California, e.g. | 23 |
| 718, e.g. | 9 |
| 410 or 212, e.g. | 16 |
| 407 in Orlando, e.g. | 20 |
| 212 or 718, e.g. | 16 |
| 208, for Idaho | 14 |
| 208 in Idaho, e.g. | 18 |
| 201, e.g. | 9 |
| 201 or 202, e.g. | 16 |
| Long-distance trios | 19 |
| Mississippi has four | 20 |
| Quartet in Mississippi | 22 |
| Phone number parts | 18 |
| Three-digit prefixes | 20 |
| They're often found in parentheses | 38 |
| Telephone number parts | 22 |
| Some three-digit numbers | 24 |
| Some of them are overlaid | 25 |