Internet provider · 38-STATE · Cable · Fiber

Xfinity

Largest US ISP. Cable tech with fiber-class top tiers in select markets. Aggressive 12-month promo pricing, hard data cap unless you upgrade, and the $15/mo gateway fee adds up.

🟡 CAVEATS Works, but check the fine print.
Parent company
Comcast Corporation (NASDAQ: CMCSA)
Founded
1963
Headquarters
Philadelphia, PA
Service types
Cable · Fiber
States served
38 states: AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MS, MO, NC, NH, NJ, NM, OH, OR, PA, SC, TN, TX, UT, VA, VT, WA, WV
ZIPs covered
~22,000
Residential subs
~31,300,000 (2026-Q1)
Gateway fee
$15/mo
Install fee
$100
Contract
None

Plans & pricing

TierDownUpPriceData cap
Connect (75 Mbps) 75 Mbps 10 Mbps $30/mo 1,228 GB
Connect More (200 Mbps) 200 Mbps 10 Mbps $45/mo 1,228 GB
Fast (400 Mbps) 400 Mbps 10 Mbps $60/mo 1,228 GB
Superfast (800 Mbps) 800 Mbps 20 Mbps $75/mo 1,228 GB
Gigabit 1.1 Gbps 35 Mbps $85/mo 1,228 GB
Gigabit Extra (2 Gbps) 2.1 Gbps 200 Mbps $100/mo 1,228 GB

Notes: Promotional pricing 12 months; goes up $20-30/mo at month 13. Data cap of 1.2 TB unless you pay $30/mo Unlimited add-on.

Ownership & corporate history

Ownership type: publicly-traded (since 1963)

Previously known as / acquired: Comcast Cable · AT&T Broadband (acquired 2002) · MediaOne (acquired 2000) · TCI (acquired 1999)

Xfinity is the consumer-facing brand. Comcast Cable Communications is the legal operating company. NBCUniversal is part of the same parent corporation (Comcast Corp). The retail stores are mostly corporate-operated as 'Xfinity Stores' — easier to navigate than Verizon's split-brand mess, but local store hours and equipment policies vary by market.

Customer service & support

Customer service
1-800-934-6489
Technical support
1-800-934-6489
Billing
1-800-934-6489
Support portal
https://www.xfinity.com/support
Billing portal
https://customer.xfinity.com/
Escalation email
[email protected]
Mailing address
Comcast Customer Service, P.O. Box 7468, Newark, NJ 07101 (billing correspondence)

Returning your equipment

Accepted return methods: ups-store-prepaid-label · xfinity-store-corporate · fedex-prepaid-label

You must return: xFi Gateway / cable modem, Set-top boxes (X1, Flex, XiOne, Xumo Stream Box if rented), Voice modem (if you had Xfinity Voice), Remote controls

⚠ Do NOT drop equipment at these stores

These branded retail stores share the carrier's name but cannot accept equipment returns for this service. Confirm before driving:

  • Xfinity Mobile retail kiosks (mall kiosks selling phones — staff often can't process internet/TV equipment)
  • Comcast Business stores (separate business division — cannot accept residential returns)

Common mistake: Xfinity is generally easier than Fios because most equipment can be returned at corporate-run Xfinity Stores. But Xfinity MOBILE kiosks (the phone-only mall locations) are not the same as Xfinity Internet stores — bring your residential equipment to a full-service Xfinity Store, not a Mobile kiosk.

Official return-equipment instructions →

Where you can actually go in person

Confirmed company-operated stores that can sign up service AND accept equipment returns. Authorized-retailer addresses are tagged separately because they cannot always handle returns.

Safety, legal, and regulatory flags

Data breaches

Does Xfinity serve your address?

Use our ZIP-coverage tool to confirm availability — we cross-reference live FCC Form 477 data with the carrier's own footprint map.

Check coverage at my ZIP →

Sources & verification

Last verified 2026-06-06. Records over 180 days old are auto-flagged for re-verification.

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