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Contact Quantum Fiber Customer Service

Quantum Fiber Phone Numbers and Emails

Toll-Free Number:

  • (833) 250-6306
Call customer service
Send Message

Customer Service:

  • (469) 627-1856

Legal:

  • (800) 837-2047
    Privacy Inquiries

Quantum Fiber Emails:

Customer Service
Legal
DMCA Inquiries
qfmobile@lumen.com
App Support
Is this your business?

Quantum Fiber Customer Service Overview

The aggregated data is based on calls made from PissedConsumer.com website and questionnaires provided by PissedConsumer.com users.

  • More commonly used way of contact is by phone.

    Source Distribution
    91% phone 9% email
  • The best phone number to call Quantum Fiber is 8332506306. 86% of consumers used this number to address their issues and concerns.

  • The longest wait times are on Monday and Friday, while the shortest are on Sunday. The average call time is 5 minutes.

  • People call Quantum Fiber mainly because of product/ service, staff and request for information.

View full overview ›

How to Contact Quantum Fiber?

Most Popular Number:

(833) 250-6306
Total calls: 37 Issues resolved: 4 Last call: Dec 10, 2025

The Quantum Fiber phone number for general customer service inquiries is 1-833-250-6306. You can call this helpline to learn about the company’s services and products, check service availability in your area, upgrade to a faster plan, or schedule installation, activation, or support for their equipment. You can also contact Quantum Fiber customer care to resolve billing discrepancies or set up an autopay. If you want to cancel your account or transfer a service to a new location, the Help Center team will be ready to assist. The phone line is available daily between 7 a.m. and 11 p.m. CST. For Privacy Policy concerns, dial 1-800-837-2047.

The Quantum Fiber email address to get in touch with the customer service team is fibersuccess@q.com. You can email your questions, concerns, and complaints to this address, and the support representatives will consider your comments and contact you back to provide the required information or instructions to resolve your issues. The same Quantum Fiber contact email can be used to request tech expert’s advice or troubleshoot internet issues or modem/router problems. If you experience difficulties accessing or navigating the app, you can email your report to qfmobile@lumen.com. The Data Protection Officer is available at privacy@lumen.com for your Privacy Policy concerns. The DMCA inquiries can be sent to dmca@centurylink.com.

The Quantum Fiber headquarters mailing address is Q Fiber, LLC, 931 14th Street, Denver, Colorado 80202, United States. You can use this address to request information about the company, its services, and availability in your area. You can also learn about plans and fees, payment methods, service cancellation, or transfer opportunities to a new location. The same Quantum Fiber address can be used to reach the customer service team with feedback, complaints, and suggestions. Legal inquiries and official correspondence can be sent to this Quantum Fiber office as well. The Data Protection Officer is available at the mentioned address to deal with the Privacy Policy-related matters and Data Protection requests.

To reach the customer service team via the Quantum Fiber website, find the chat icon in the bottom right corner of the homepage and provide your contact information to start the session. Alternatively, you can visit the Contact Us page and access the Quantum Fiber chat by clicking the Chat Now button. The live operators are available daily from 7 a.m. to 11 p.m. CST. If you prefer communicating via social media, click the platform’s icon in the Connect Online section to follow or DM the company. Additionally, you will find links to the official app, which also provides an opportunity to get in touch with Quantum Fiber support.

PissedConsumer Club

Contact Information

Quantum Fiber Website:

Quantum Fiber Help Center:

Corporate Office Address:

Q Fiber, LLC
931 14th Street
Denver, Colorado 80202
United States

Other Info (opening hours):

Phone Hours:

Sunday - Saturday: 7:00am - 11:00pm CST

More contact details

Quantum Fiber Rating Based on 6 Reviews

Rating details

2.0
more details
Billing Practices
Diversity of Products or Services
Coverage Area
Discounts and Special Offers

Rating stats

Rating trend

Summary of Quantum Fiber Customer Service Calls

43 TOTAL
CALLS
04:42 AVG CALL
DURATION
33% ISSUES
RESOLVED

Top Reasons of Customers Calls

Consumers Call the Most From

Why Do People Call Quantum Fiber?

Product/ Service Question:

  • “Connection not working”
  • “Outage”
  • “Not working”

Staff Question:

  • “No service”
  • “Very poor coverage for new service”
  • “Customer service issues unresolved after 7+ calls and 30 days trying to resolve issues”

Request for Information Question:

  • “Help with account”
  • “Help connecting Roku fire stick”
  • “I need help with wireless router”

Payments and Charges Question:

  • “Pay bill”
  • “Bill”

Website/ Application Question:

  • “No show for installation appointment many times”
  • “Install additional WiFi 360 Pod”

Account Question:

  • “Forgot my password”

Return/ Replace Question:

  • “Return label difficulty”

Cards Question:

  • “Change credit card for auto pay”

Other Question:

  • “Tv”
  • “Try to keep my scheduled date”
  • “Can a pod be unplugged and plugged back in without reprogramming”

Compare Quantum Fiber Customer Service To

Companies are selected automatically by the algorithm. A company's rating is calculated using a mathematical algorithm that evaluates the information in your profile. The algorithm parameters are: user's rating, number of resolved issues, number of company's responses etc. The algorithm is subject to change in future.

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