How to Cancel Mediacom Internet in 2026 (Return Equipment + Avoid Fees)

Updated 2026-03-03 · 6 min read

Cancel Mediacom Internet

1. Call 1-855-633-4226 (residential customer service)
2. Say "cancel my internet service"
3. You'll be transferred to the retention department — expect discount offers
4. If you're sure: "I've already set up service elsewhere. Please process the cancellation."
5. Confirm your final bill date — Mediacom does not prorate mid-cycle (you pay through end of billing period)
6. Get a confirmation number and the agent's name
7. Ask about equipment return instructions

Can You Cancel Online?

No. Mediacom requires a phone call to cancel. You cannot cancel through:

• The Mediacom website or app
• Email
• Online chat

You must call 1-855-633-4226. This is intentional — it gives their retention team a chance to offer you a deal. If you want to keep service at a lower price, this works in your favor.

Equipment Return

1. Photograph everything with serial numbers visible before returning
2. Return: cable modem, router (if rented), coaxial cables, power adapters
3. Option 1: Drop off at your nearest Mediacom office (fastest, get a receipt)
4. Option 2: Request a prepaid shipping label (UPS or FedEx)
5. Get a receipt no matter which method you use
6. Keep the receipt for at least 12 months
7. Equipment must be returned within 10 business days of cancellation

Early Termination Fee

• Mediacom promotional contracts typically include an ETF of $120-$240 if canceled before the term ends
• Moving? If Mediacom doesn't serve your new address, the ETF is usually waived — bring proof of new address
• Service issues? Document outages and speed problems — repeated service failures can justify ETF waiver
• Month-to-month: If your promotion ended and you're on month-to-month pricing, there's no ETF

Negotiate a Better Deal Instead

• Mediacom retention agents can offer 30-50% discounts for 12-month commitments
• Know the competition: "T-Mobile is offering me 5G home internet for $50/month" — even if you're not actually switching
• Ask about loyalty pricing — longtime customers sometimes qualify for unadvertised rates
• If they won't budge, hang up and call back — different agents have different authority levels

Alternatives to Mediacom

• T-Mobile 5G Home Internet: $50/month, no contracts, no equipment rental fees — works great in many Mediacom service areas
• Verizon 5G Home: $35-60/month — if available, often faster than cable
• Starlink: $120/month — expensive but available everywhere, no contracts
• Local fiber providers: Check for municipal fiber or local ISPs — often better than national chains
• Xfinity/Spectrum: If available in your area, competitive cable options with better infrastructure

After Cancellation

• Monitor your bank statement for 3 months — confirm no further charges
• If Mediacom keeps billing, call with your confirmation number
• Check for final bill credits — you may be owed a prorated refund or deposit return
• Security deposit (if you paid one): Mediacom should refund within 30-60 days
• If disputes arise, file a complaint with your state attorney general or the FCC

Bottom line: Call 1-855-633-4226, be firm through retention offers if you're set on leaving, photograph equipment before returning, and keep your receipt. If Mediacom is your only option and you negotiate well, you might get a significantly better rate — ISPs would rather give discounts than lose customers.