2021 NASCAR Xfinity Frequencies
Saturday, Aug 06
| Number | Driver | Primary | Secondary | ||
| 02 | Brett Moffitt | 459.6125 | 467.2125 | ||
| 03 | TBA | 464.9625 | 463.7250 | ||
| 07 | David Starr | 463.6375 | 463.7875 | ||
| 0 | Jeffrey Earnhardt | 456.3375 | 467.8875 | ||
| 1 | Michael Annett | 453.1875 | 468.9125 | ||
| 2 | Myatt Snider/RCR | 456.8625 | 457.4625 | ||
| 4 | Landon Cassill | 464.0125 | 456.9625 | ||
| 5 | Matt Mills | 469.4250 | 468.5900 | ||
| 6 | Ryan Vargus | 458.8125 | 469.4125 | ||
| 7 | Justin Allgaier | 468.8625 | 456.1625 | ||
| 8 | Josh Berry/JRM | 462.7875 | 468.3125 | ||
| 9 | Noah Gragson | 457.8875 | 464.1125 | ||
| 10 | Ross Chastain | 459.5750 | 465.9625 | ||
| 11 | Justin Haley | 466.1375 | 459.7500 | ||
| 13 | Timmy Hill | 461.5125 | 452.9250 | ||
| 15 | Colby Howard | 467.0875 | 452.3625 | ||
| 16 | AJ Allmendinger/Kaulig | 468.0250 | 465.3750 | ||
| 17 | Joe Graf Jr | 466.3125 | 467.7125 | ||
| 18 | Daniel Hemric/JGR | 464.7875 | 451.8500 | ||
| 19 | Brandon Jones | 466.0125 | 451.3000 | ||
| 20 | Harrison Burton | 461.8625 | 464.0875 | ||
| 21 | TBA | 469.2375 | 464.4625 | ||
| 22 | Austin Cindric | 464.5750 | 451.7500 | ||
| 23 | CJ McLaughlin | 460.3875 | 460.6375 | ||
| 26 | Brandon Gdovic | 451.6375 | 451.4125 | ||
| 31 | Jordan Anderson | 467.1750 | 465.7750 | ||
| 36 | Alex Labbe | 456.6250 | 451.9375 | ||
| 39 | Ryan Sieg | 457.0125 | 457.3375 | ||
| 44 | Tommy Joe Martins | 453.3750 | 458.6375 | ||
| 47 | Kyle Weatherman | 458.0125 | 453.5125 | ||
| 48 | Jade Buford | 452.5125 | 468.5375 | ||
| 51 | Jeremy Clements | 469.1875 | 468.7250 | ||
| 52 | Kody Vanderwal | 463.8125 | 467.5500 | ||
| 54 | Denny Hamlin/JGR | 464.7000 | 464.6500 | ||
| 61 | JJ Yeley | 453.6625 | 453.1625 | ||
| 66 | Stan Mullins | 458.5375 | 467.6875 | ||
| 68 | Brandon Brown | 461.8750 | 461.9250 | ||
| 74 | Bayley Currey | 461.7500 | 470.0000 | ||
| 78 | Jesse Little | 467.5775 | 466.3650 | ||
| 90 | Donald Theetge | 463.3750 | 462.8375 | ||
| 92 | Josh Williams | 459.9875 | 461.3750 | ||
| 98 | Riley Herbst | 465.5375 | 451.3750 | ||
| 99 | Jesse Iwuji | 467.9375 | 457.5125 | ||
| * | NASCAR 1 & 11 | 461.2000 | * | * | * |
| * | NASCAR 2 & 12 | 464.6000 | * | * | * |
| * | NASCAR 5 & 15 | 451.2250 | * | * | * |
| * | NASCAR 10 | 451.5750 | * | * | * |
| * | RACE CONTROL | 461.2000 | * | * | * |
| * | RACE CONTROL B/U | 464.6000 | 463.6250 | * | * |
| * | SAFTY/FIRE | 451.2250 | * | * | * |
| * | NASCAR Weather | 467.8500 | * | * | * |
| * | MRN Radio | 454.0000 | * | * | * |
| * | PRN Radio | 454.0000 | * | * | * |
| * | TBA | 450.6250 | * | * | * |
| * | TBA | 450.1750 | 450.1250 | 450.1375 | 450.1000 |
| * | TBA | 450.2750 | 450.6875 | * | * |
| * | TBA | 462.0250 | 462.0500 | 450.7625 | 455.5875 |
| * | TBA | 450.5875 | * | * | * |
| * | FOX | 450.2375 | 450.3000 | 450.0375 | * |
| * | SPEED | 450.1125 | * | * | * |
| * | ROWDY Pre-Race Show | 454.5000 | * | * | * |
| * | ROWDY Classic Interviews | 454.7000 | * | * | * |