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AT&T vs Xfinity in Knoxville
Knoxville’s trade-off is AT&T’s faster fiber uploads and lower starting price versus Xfinity’s broader access to a fast cable plan.
Xfinity is the better overall pick in Knoxville because its 2,000/300 Mbps cable plan reaches about 64% of the city, giving more shoppers access to strong performance. AT&T wins on top-end speed and price: its 5,000/5,000 Mbps fiber tier reaches about 51%, and its starting price is $35 versus Xfinity’s $40; both reach about 89% overall. Choose Xfinity for broader access to a fast plan and a balanced connection, or AT&T if fiber reaches your address and you value faster uploads, gaming performance, or the lower starting price.
At a glance
AT&T vs. Xfinity, side by side.
| Provider | Type | Top speed | City coverage | Starting price | Best for |
|---|---|---|---|---|---|
| AT&T |
Fiber | 5 Gig 5 Gig upload |
89% | $35/mo | Top fiber speeds |
| Xfinity |
Cable | 2 Gig 300 Mbps upload |
89% | $40/mo | Solid cable option |
Coverage map
Two different questions, two views. Top speed shows who offers the faster plan where you can actually get it. Coverage shows who reaches more of each ZIP. Or pick a single provider to see just its footprint.
Neighborhood breakdown
Both providers reach about 89% of Knoxville overall, but availability can change from block to block and by ZIP or neighborhood. AT&T’s 5,000/5,000 Mbps fiber tier reaches about 51% of the city, while Xfinity’s 2,000/300 Mbps cable tier reaches about 64%, so check the exact address before choosing.
| ZIP | Neighborhoods | Coverage | Top speed | Rank score | Winner | |||
|---|---|---|---|---|---|---|---|---|
| AT&T | Xfinity | AT&T | Xfinity | AT&T | Xfinity | |||
| 37921 | West Knoxville, Lonsdale, Mechanicsville, Marble City | 74% | 100% | 5 Gig | 2 Gig | 70 | 80 | Xfinity |
| 37920 | South Knoxville, Vestal, Island Home, Lake Forest | 74% | 97% | 5 Gig | 2 Gig | 70 | 78 | Xfinity |
| 37918 | Fountain City, Halls Crossroads, Gibbs | 69% | 100% | 5 Gig | 2 Gig | 65 | 80 | Xfinity |
| 37917 | North Knoxville, Old North Knoxville, Whittle Springs, Edgewood | 60% | 100% | 5 Gig | 2 Gig | 57 | 80 | Xfinity |
| 37938 | Halls, Halls Crossroads, North Knoxville | 13% | 95% | 5 Gig | 2 Gig | 12 | 76 | Xfinity |
| 37914 | East Knoxville, Chilhowee Park, Burlington, Holston Hills | 69% | 94% | 5 Gig | 2 Gig | 66 | 76 | Xfinity |
| 37919 | Bearden, Sequoyah Hills, West Hills, Rocky Hill | 63% | 99% | 5 Gig | 2 Gig | 60 | 80 | Xfinity |
| 37912 | Fountain City, Inskip, Cedar Lane | 70% | 100% | 5 Gig | 2 Gig | 66 | 80 | Xfinity |
| 37923 | Cedar Bluff, West Hills, Ball Camp | 69% | 99% | 5 Gig | 2 Gig | 65 | 79 | Xfinity |
| 37922 | Farragut, Concord, Choto | 60% | 80% | 5 Gig | 2 Gig | 57 | 64 | Xfinity |
| 37924 | East Knoxville, Carter, Ritta | 52% | 97% | 5 Gig | 2 Gig | 49 | 78 | Xfinity |
| 37931 | Karns, Hardin Valley, Solway | 61% | 100% | 5 Gig | 2 Gig | 58 | 80 | Xfinity |
| 37915 | East Knoxville, Morningside, Parkridge, Fourth and Gill | 58% | 95% | 5 Gig | 2 Gig | 55 | 77 | Xfinity |
| 37909 | West Hills, West Haven, Cedar Bluff area | 84% | 100% | 5 Gig | 2 Gig | 80 | 80 | Xfinity |
| 37932 | Hardin Valley, Farragut area, Pellissippi | 43% | 85% | 5 Gig | 2 Gig | 41 | 68 | Xfinity |
| 37916 | Fort Sanders, University of Tennessee, Cumberland Avenue Strip | 29% | 96% | 5 Gig | 2 Gig | 27 | 77 | Xfinity |
| 37902 | Downtown Knoxville, World’s Fair Park, Gay Street, Old City | 39% | 93% | 5 Gig | 2 Gig | 37 | 75 | Xfinity |
| 37996 | University of Tennessee, UT Campus, Fort Sanders | 0% | 56% | — | 2 Gig | — | 45 | Xfinity |
| 37901 | Downtown Knoxville (PO Box/administrative) | 39% | 93% | 5 Gig | 2 Gig | 37 | 75 | Xfinity |
| 37939 | West Knoxville, Bearden area | 67% | 100% | 5 Gig | 2 Gig | 64 | 80 | Xfinity |
| 37928 | North Knoxville (PO Box/administrative) | 82% | 100% | 5 Gig | 2 Gig | 78 | 80 | Xfinity |
| 37927 | Downtown Knoxville (PO Box/administrative) | 83% | 100% | 5 Gig | 2 Gig | 79 | 80 | Xfinity |
| 37933 | West Knoxville, Hardin Valley, Farragut area | 0% | 5% | — | 1 Gig | — | 4 | Xfinity |
| 37940 | South Knoxville, Knoxville | 88% | 100% | 5 Gig | 2 Gig | 84 | 80 | AT&T |
Rank score (0–100) is each provider’s Speed Score, discounted for weak upload, times the share of that ZIP it reaches — the same rule that orders providers on the Knoxville city page, so it moves as availability changes street to street.
Which is better for…
The right pick comes down to what you actually do online.
Get connected
Pick your provider and check availability at your address.
- 5 Gig down · 5 Gig up Fiber
- 1 Gig down · 1 Gig up Fiber
- 100 Mbps down · 20 Mbps up Copper
- 2 Gig down · 300 Mbps up Cable
- 1 Gig down · 35 Mbps up Cable
See what’s actually available at your address
Coverage changes from one street to the next. Check your exact address in seconds.
Check my addressFrequently asked questions
Is AT&T internet available at my Knoxville address?
AT&T reaches about 89% of Knoxville across all technologies, while its 5,000/5,000 Mbps fiber tier reaches about 51% of the city. Availability varies by block, so check your exact address and confirm which technology is offered.
Which is cheaper in Knoxville, AT&T or Xfinity, and what will I actually pay?
AT&T starts at $35/mo, compared with Xfinity’s $40/mo, and both are promotional starting rates. Confirm the post-promo rate, equipment fees, and any contract before signing, then compare the final terms for your address.
Which is faster for gaming, working from home, or 4K streaming?
AT&T’s fiber tier reaches 5,000/5,000 Mbps where available, while Xfinity’s cable tier reaches 2,000/300 Mbps where available. AT&T is better for gaming and video calls because of its stronger upload speed, but check availability and your household’s needs before deciding.