| 3rd & The Mortal |
| 3rd Alley |
| 3rd Angle |
| 3rd Bass |
| 3rd Coast Dynasty |
| 3rd Coast String Quartet |
| 3rd Degree |
| 3rd Door Down |
| 3rd Edge |
| 3rd Eye |
| 3rd Faze |
| 3rd Generation |
| 3rd Generation (Bereal Family) |
| 3rd Party |
| 3rd Root |
| 3rd Storee |
| 3rd Strike |
| 3rd Wish |
| 3rdEyeGirl |
| 3rdrail |
| 3rdSide |
| 3robi |
| 3t |
| 3T |
| 3Three |
| 3X Krazy |
| 4 Bruthas & A Bass |
| 4 Clubbers |
| 4 Ever |
| 4 Fun |
| 4 Haven Knights |
| 4 Hits & A Miss |
| 4 Lyn |
| 4 Non Blondes |
| 4 non blonds |
| 4 P.m |
| 4 PM "For Positive Music" |
| 4 Runner |
| 4 Sins |
| 4 Strings |
| 4 Taste |
| 4 The Cause |
| 4 To The S |
| 4 Tune |
| 4-Ize |
| 4-motion |
| 4-U |
| 4-U-2-Know |
| 40 |
| 40 Below Summer |
| 40 Cal. |
| 40 Glocc |
| 40 Grit |
| 40 Miles Out |
| 40 Oz |
| 40 Thevz |
| 400 Pounds Of Punk |
| 40000 Gang |
| 404Billy |
| 40oz |
| 410 Pharaohs |
| 411 |
| 420 |
| 45 Degree Woman |
| 45 Dip |
| 45 Grave |
| 45 Jj. |
| 45 RPM |
| 45 Souls |
| 451 |
| 451 Studios |
| 454 Big Block |
| 46bliss |
| 48 May |
| 48May |
| 48th St. Collective |
| 49ers |
| 49th Street |
| 4:2: Five |
| 4:40 |
