Lumen Technologies
Lumen Technologies, Inc. is a global telecommunications and technology company that provides networking, connectivity, cloud, cybersecurity, edge computing and digital infrastructure services to businesses, government organizations and other customers. The company operates extensive fiber and communications infrastructure and increasingly focuses its strategy on enterprise connectivity, high-capacity networking and infrastructure designed to support artificial intelligence, cloud computing and other data-intensive applications.
Lumen traces its history through predecessor telecommunications companies including Century Telephone Enterprises, CenturyTel and CenturyLink. The company adopted the Lumen Technologies name in 2020 as part of a broader strategy focused on enterprise technology and digital infrastructure. Lumen continues to operate several legacy and customer-facing brands and services while investing heavily in fiber expansion, network modernization and an AI-ready digital backbone.
Lumen Technologies is headquartered at 100 CenturyLink Drive, Monroe, Louisiana 71203. As of December 31, 2025, the company employed approximately 24,000 people globally, including about 3,400 outside the United States. Lumen Technologies common stock trades on the New York Stock Exchange under ticker symbol LUMN.
318-388-9000. This is Lumen Technologies’ current SEC-listed corporate telephone number associated with its principal executive offices in Monroe, Louisiana.
Lumen customer support varies according to business service and account type. For general corporate escalation after standard Customer Service has been attempted, Lumen publishes 318-388-9800 for its Customer Advocacy Team.
Lumen Technologies, Inc., 100 CenturyLink Drive, Monroe, LA 71203, United States. This is the company’s current principal executive-office address.
Lumen Technologies, Inc., 100 CenturyLink Drive, Monroe, Louisiana 71203, United States. Current 2026 SEC filings and Lumen’s official office directory continue to identify this location as the company’s corporate headquarters.
Customer Advocacy: execservices@lumen.com. Lumen also publishes investor.relations@lumen.com for institutional investors and bondholders and boardinquiries@lumen.com for appropriate Board communications.
Lumen Technologies operates in telecommunications, fiber networking, enterprise connectivity, digital infrastructure, cybersecurity, cloud connectivity, edge computing and network services.
Lumen’s corporate history extends through predecessor organizations dating back more than a century, while the company operated for many years under the CenturyLink name before adopting Lumen Technologies in 2020.
Approximately 24,000 employees globally. As of December 31, 2025, Lumen employed approximately 24,000 people worldwide, including approximately 3,400 employees outside the United States.
Lumen does not publish ordinary public walk-in hours for its Monroe headquarters. Customer and technical-support hours depend on the product and service involved, while corporate departments generally operate during standard business schedules.
https://www.lumen.com/ The official Lumen website provides information about enterprise networking, cybersecurity, cloud connectivity, digital infrastructure, customer support and corporate operations.
https://ir.lumen.com/ Lumen Technologies, Inc. trades on the New York Stock Exchange under ticker symbol LUMN, and Investor Relations provides earnings releases, SEC filings, annual reports and shareholder information.
https://jobs.lumen.com/ Lumen recruits for technology, networking, cybersecurity, sales, customer success, finance, government services and corporate roles.
Lumen provides enterprise networking services designed to connect business locations, data centers, cloud environments and other critical systems across local, national and global networks.
The company operates extensive fiber infrastructure and provides high-capacity connectivity to businesses requiring reliable data transmission and network performance.
Lumen provides dedicated internet connectivity for enterprises that require consistent bandwidth, business-grade performance and service-level commitments.
Lumen provides internet protocol transit services that connect large networks, digital platforms and service providers to global internet infrastructure.
Businesses can use Lumen Ethernet solutions to connect offices, data centers and network environments using scalable private connectivity.
Lumen wavelength services provide high-capacity optical connections for customers moving large amounts of data between locations.
The company provides dark-fiber solutions to qualifying customers that want greater control over network design, capacity and equipment.
Lumen Network as a Service provides customers with flexible digital access to networking capabilities that can be activated and managed through software-based tools.
Lumen connects enterprise customers with major cloud environments and data centers through secure networking and private connectivity services.
Lumen provides security solutions including network protection, threat monitoring, DDoS mitigation and other services designed to protect digital infrastructure.
Distributed denial-of-service protection helps organizations detect and mitigate malicious network traffic that can disrupt websites, systems and applications.
Lumen’s edge services allow customers to process data closer to users and devices, reducing latency for applications that require faster response times.
Lumen is investing in high-capacity network infrastructure designed to support artificial intelligence workloads, large data transfers and connectivity between AI data centers and cloud platforms.
Businesses can outsource selected networking operations and monitoring functions to Lumen specialists.
Lumen provides enterprise voice and communications services, including selected SIP, calling and collaboration products.
The company supports contact-center connectivity and communications technology for businesses managing customer-service operations.
Lumen provides secure communications, networking and technology services to federal, state and local government organizations.
Enterprise customers can use Lumen consulting, implementation and technical services for network transformation, security and infrastructure projects.
318-388-9000. This is Lumen Technologies’ current corporate headquarters telephone number.
318-388-9000. The number is associated with Lumen’s principal executive offices at 100 CenturyLink Drive in Monroe.
318-388-9000. This is the primary corporate-level number listed in Lumen’s SEC filings.
318-388-9000. Routine service issues should normally be handled through the Customer Service or technical-support channel associated with the customer’s account.
Lumen Customer Support numbers vary according to product and account. Enterprise customers should use the service contact provided in their Customer Handbook, portal or account documentation.
There is no one universal Lumen Customer Service number covering every enterprise and legacy telecommunications product. Customers should use the account-specific support information provided by Lumen.
1-800-871-9244 is published for U.S. sales inquiries, including Option 3 for appropriate sales routing.
1-800-871-9244. Lumen publishes this U.S. sales number for businesses interested in enterprise networking and technology services.
318-388-9800 is Lumen’s Customer Advocacy Team number for customers who have already contacted standard Customer Service but require additional support.
Lumen billing contacts vary according to product and enterprise account, so customers should use the number printed on their invoice or the support information in their account portal.
Lumen operates offices across the United States and internationally, including major locations in Atlanta, Boston, Chicago, Dallas, Denver and Herndon, with local contacts varying by facility.
Individual Lumen office locations may have different telephone contacts, while most customer issues are handled through centralized enterprise-support systems rather than local office switchboards.
Lumen provides global enterprise services and maintains international offices, but support contacts vary by country and account rather than using one universal worldwide number.
Enterprise customers with urgent service outages should use the emergency or technical-support process associated with their service contract and customer handbook rather than the corporate headquarters line.
Lumen primarily publishes investor.relations@lumen.com for Investor Relations inquiries rather than a dedicated general shareholder hotline.
Lumen media inquiries are handled through the company’s corporate communications resources and Newsroom rather than ordinary Customer Service.
Lumen does not publish one universal public HR telephone number for outside applicants. Candidates should use the official Lumen Careers portal.
Not applicable. Lumen Technologies is a telecommunications and digital infrastructure company rather than a reservation-based business.
318-388-9800. This is specifically intended for customers who contacted Customer Service but require additional corporate-level advocacy or escalation.
For an existing Lumen enterprise account, use the Customer Service or technical-support information provided in the account portal, Customer Handbook, invoice or service documentation because support routing depends on the products purchased. Customers who have already contacted Customer Service but still require additional assistance can call the Customer Advocacy Team at 318-388-9800 or email execservices@lumen.com.
For corporate matters unrelated to an active service case, contact Lumen headquarters at 318-388-9000. Prospective business customers can call 1-800-871-9244, while institutional investors and bondholders should use investor.relations@lumen.com rather than customer-support channels.
Lumen Technologies, Inc., 100 CenturyLink Drive, Monroe, LA 71203, United States, Corporate Phone: 318-388-9000. This is the company’s current principal executive-office address.
100 CenturyLink Drive, Monroe, Louisiana 71203, United States. Lumen’s official office directory and current SEC filings continue to identify this address as the U.S. corporate headquarters.
Lumen Technologies, Inc., 100 CenturyLink Drive, P.O. Box 4065, Monroe, LA 71203, United States. This mailing format appears in current SEC records and should not be confused with a different headquarters location.
Lumen Board of Directors, P.O. Box 5061, Monroe, LA 71211, United States, Email: boardinquiries@lumen.com. This address is specifically intended for Board communications rather than ordinary customer complaints.
Lumen Customer Advocacy Team, Phone: 318-388-9800, Email: execservices@lumen.com. This specialized resource is intended for customers who have already contacted standard Customer Service and need further assistance.
Lumen Technologies, Inc. trades on the New York Stock Exchange under ticker symbol LUMN and maintains public-company reporting and Investor Relations resources.
Customers experiencing a problem involving network service, billing, installation, performance or account management should begin with the support process associated with their specific Lumen service because enterprise products can have different support teams and service-level procedures.
Use the support telephone number, portal or case-management process provided in the Lumen Customer Handbook, invoice or service agreement and clearly explain the issue.
For a technical or service issue, make sure a formal support ticket or case is opened and retain the case number for future follow-up.
Save invoices, contracts, service records, outage information, emails and prior case numbers that document the issue.
Continue using the existing support case whenever possible so Lumen can review the previous troubleshooting and communication history.
If a service problem remains unresolved, ask whether the case can be escalated to a higher-level technical or account-management team.
Enterprise customers with assigned account representatives should involve their account manager when a service or billing issue requires additional coordination.
If normal Customer Service has not resolved the matter, call 318-388-9800 or email execservices@lumen.com to reach Lumen’s Customer Advocacy Team.
Clearly state the requested correction, credit, technical fix or account action so the escalation team understands what outcome is being requested.
For broader unresolved corporate correspondence, contact Lumen Technologies, Inc., 100 CenturyLink Drive, Monroe, LA 71203, Phone: 318-388-9000 and reference the prior support case.
If a significant telecommunications, billing or contractual dispute remains unresolved, customers may consider the regulatory, contractual or consumer-protection process applicable to the service and jurisdiction.
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