AT&T Business Fiber vs Comcast Business Internet

Two business internet tools side by side. Prices are the starting plan a small business would pick, in USD.

Compare	AT&T Business FiberAT&T	Comcast Business InternetComcast
In one line	Fiber internet with equal upload and download speeds, no annual contract	Cable business internet with 1-year or 5-year pricing
Starting price	From $60/mo	From $70/mo
Six-person team	$60/mo	$70/mo
Plans	Per location, online-only prices plus taxes and fees, no annual contract: Fiber 300 $60/mo (listed against $70); Fiber 500 $100 ($110); 1 GIG $140 ($160); 2 GIG $185; 5 GIG $285. With an eligible AT&T business wireless plan, $20 to $50 off (300 for $40, 500 for $60, 1 GIG for $90, 2 GIG for $135, 5 GIG for $235), starting within 3 bills. No promo end date or later price shown; price and speeds vary by address. Wi-Fi gateway included, no equipment fees, no data caps; $99 installation waived (bill credit) on online orders of 300 Mbps and up; 5G backup included from 1 GIG; new customers on Fiber 300 get a $100 AT&T Visa reward card; switching from another provider, AT&T covers its early termination fee up to $750; static IP blocks extra, price not published; 30-day risk-free cancellation	Per location; prices include a $10/mo discount for paperless billing plus autopay from a bank account. 1-year pricing, 1-year contract: Standard 300 Mbps $70/mo for months 1-12, $100/mo months 13-24, $140/mo months 25-36, then regular rates; Performance 500 Mbps $100/mo (then $130, $170); Gigabit Extra 1.25 Gbps $150/mo (then $180, $220); 2 Gigabit 2 Gbps $180/mo (then $210, $250). 5-year price lock, 1-year contract: $110, $140, $190, $220/mo. $10/mo off for each of SecurityEdge Preferred, Wireless Connect or Comcast Business Mobile added (up to $30/mo). SecurityEdge security included. Equipment included only on gig-speed plans (fee on 300 and 500 Mbps not published). Installation, taxes and fees extra; early termination fee; $3.95/mo paper statement fee. New customers, limited-time offer (current one ends 11/8/26), price varies by address. No month-to-month price published; upload speeds not published; no data caps; 30-day money-back guarantee
Pricing model	Paid	Paid
Free trial	—	—
Users	One location; unlimited users; static IP extra	One location; 1-year contract
Integrations	Static IP blocks, 5G backup (1 GIG and up), AT&T Phone for Business, Office@Hand, Dynamic Defense	Wireless Connect backup, SecurityEdge, WiFi Pro, static IP, Business Voice, Mobile
Team size	Just me · 2–10 people · 11–50 people	Just me · 2–10 people · 11–50 people
Available in	US	US
Phone support	Every plan (US)	Every plan
Live chat	Every plan	Plans not stated
Support hours	Phone: Repair line 6 a.m. to midnight CT, every day, Ordering and billing line (888.944.0447) weekdays 8 a.m. to 6 p.m. CT	Phone: 24/7 · Live chat: Day or night
Incidents posted	We found no public status page for AT&T.	We found no public status page for Comcast.
Fit: Retail shop	76	80
Fit: Restaurant or café	76	78
Fit: Service business	78	80
Fit: Agency or studio	82	80
Fit: Trades or contractor	66	68
Fit: Online store	78	72
Why people pick it	Same upload and download speed, no contract or data cap Gateway included; 5G backup from 1 GIG	No data caps, 24/7 phone support Gig plans include equipment
Where it falls short	Only where AT&T fiber reaches (parts of 39 states) Static IP price not published; lowest price needs AT&T wireless	Price rises after 12 months Only where Comcast's network reaches
	Visit AT&T Business Fiber ↗	Visit Comcast Business Internet ↗

Six-person prices are what a team of six would pay on the published plans; "Not listed" means those plans don't cover six. How we calculate prices

AT&T Business Fiber: partner link. We may earn a commission; it never affects rankings.