AT&T vs Xfinity: Fiber vs Cable in 2026

AT&T and Xfinity compete head-to-head in 8,469 ZIP codes per FCC data — the biggest cable-vs-telco battleground in the country. The short version: where AT&T Fiber is built, its symmetrical speeds and pricing from $50/mo beat cable; where it isn’t, Xfinity’s cable (and Internet Air as the AT&T fallback) is usually the faster pick.

8,469ZIP codes where both compete
24,531AT&T ZIPs (FCC)
8,807Xfinity ZIPs (FCC)

Side by side

AT&TXfinity
Starting pricefrom $50/mofrom $45/mo
Price termsAT&T Fiber Internet 300, with Auto Pay and Paperless Billing. Taxes and fees extra.300 Mbps with Auto Pay and paperless billing; pricing varies by address, taxes and fees extra. Multi-year price guarantee on eligible plans.
Top advertised speed5 Gbps10 Gbps
TechnologyFiber, Internet Air & DSLCable & Fiber
FCC footprint24,531 ZIPs / 49 states8,807 ZIPs / 41 states
Upload speedsMatch downloads (fiber)Typically 20–250 Mbps on cable
Price behaviorNo promo on Fiber 300; a 12-month discount on 500 and upMulti-year price guarantee on eligible plans
EquipmentIncludedGateway included on national plans
Where each is strongestFiber in 25 states, Air nearly everywhereCable across 41 states

Coverage: FCC Broadband Data Collection (Dec 2024), residential filings. Pricing is indicative; promotional rates vary by address.

Which should you pick?

If this is youPickWhy
AT&T Fiber reaches your addressAT&Tsymmetrical uploads, All-Fi Hub included, no annual contract
Only AT&T Internet Air (5G) vs Xfinity cableXfinitycable’s 1–2 Gbps beats 5G’s ~100 Mbps typical
You want the lowest first-year billXfinityXfinity 300 Mbps from $45/mo vs AT&T Fiber 300 at $50/mo
You have AT&T wirelessAT&T$15–$25/mo off the internet bill with eligible AT&T wireless

See which one actually serves your address:

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Frequently asked questions

Is AT&T Fiber better than Xfinity?
Where AT&T Fiber is actually built — roughly 5,400 ZIP codes of AT&T’s 24,531 total — yes for most users: symmetrical speeds, fiber from $50/mo, and equipment included. Xfinity wins where AT&T only offers Internet Air (5G) or DSL, and on long-run price protection with its multi-year guarantee.
Is AT&T or Xfinity cheaper?
First year: Xfinity, narrowly — its 300 Mbps plan is from $45/mo, against AT&T Fiber 300 at $50/mo with Auto Pay and Paperless Billing. AT&T’s 300 Mbps price has no 12-month promo, while Xfinity’s eligible plans carry a multi-year price guarantee, so compare the second-year price too.
Do AT&T and Xfinity serve the same areas?
They overlap in 8,469 ZIP codes per FCC Dec-2024 filings — mostly metro areas across Texas, the Midwest, California, and the Southeast. Which technologies overlap at your specific address decides the real matchup; check your ZIP.

More comparisons

Disclosure: EZ Internet is an independent retailer and comparison site. We are authorized to sell both AT&T and Xfinity, and are paid a commission by whichever one you order. You pay the provider's own price; we never add a markup. A few provider promotions are online-only and can't be ordered by phone, and we tell you when that applies. The comparison above comes from FCC coverage data and published pricing either way. Neither page is a provider’s official site. Trademarks belong to their owners and identify the services compared. Coverage is FCC Broadband Data Collection data; pricing is indicative and varies by address.

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