Altice USA
Altice USA
Altice USA was a major U.S. broadband, cable television, mobile, voice, advertising, and local-news company headquartered in Long Island City, New York. The company was formed after Altice acquired Cablevision Systems Corporation and Suddenlink Communications and combined their U.S. operations. For years, the business operated under the Altice USA corporate name while using Optimum as its principal consumer-facing brand across broadband, television, phone, and mobile services.
An important current correction is required for older headquarters pages. Effective November 7, 2025, Altice USA, Inc. officially changed its corporate name to Optimum Communications, Inc. The New York Stock Exchange ticker also changed from ATUS to OPTU, with trading under the new symbol beginning on November 19, 2025. Therefore, Altice USA is now the former corporate name, while Optimum Communications, Inc. is the current legal corporate name.
Optimum Communications currently provides broadband, video, mobile, voice, business connectivity, advertising, and local news services. The company serves approximately 4.3 million residential and business customer relationships across 21 states. Its additional businesses include Optimum Media, which provides advertising and data solutions, and News 12, its hyperlocal news network. Dennis Mathew currently serves as Chairman and Chief Executive Officer.
Optimum Communications, Inc.
1 Court Square West
Long Island City, NY 11101
United States
The company’s 2025 Form 10-K identifies 1 Court Square West as its principal business address. This remains the verified current corporate headquarters following the Altice USA to Optimum Communications name change.
The principal corporate office is the same as the headquarters
1 Court Square West
Long Island City, NY 11101
Corporate functions based there include executive leadership, finance, investor relations, legal, regulatory, communications, strategy, and other company-wide operations.
Current SEC filings use
Optimum Communications, Inc.
1 Court Square West
Long Island City, NY 11101
No separate primary corporate mailing address is prominently published.
Optimum’s consumer contact materials also display
1 Court Square West
Long Island City, NY 11101
This confirms the same address across both corporate filings and current customer-facing materials.
The headquarters address itself has not changed as part of the 2025 rebrand. What changed was the corporate identity.
Older pages may still identify
Altice USA, Inc.
1 Court Square West
Long Island City, NY 11101
That company name should now be updated to
Optimum Communications, Inc.
516-803-2300
This is the main corporate telephone number listed in the company’s SEC filings.
833-671-4549
Current Optimum customers can call this number for support, upgrades, service questions, billing, and technical assistance.
1 Court Square West, Long Island City, NY 11101
1 Court Square West, Long Island City, NY 11101
Optimum does not prominently publish one universal consumer Customer Service email.
Current investor contacts include department-specific emails through the Investor Relations organization, while customers are primarily directed to phone, chat, app, and store support.
Broadband, Telecommunications, Cable Television, Mobile, Voice, Advertising, Business Connectivity and Local News
2015 as Altice USA
The business later changed its corporate name to Optimum Communications in November 2025.
Approximately
9,517 active employees globally as of December 31, 2025
Approximately 10.5% were located outside the United States, primarily in Jamaica and Canada.
Approximately
4.3 million customer relationships
across 21 states.
The company does not publish public walk-in hours for its Long Island City corporate headquarters.Customer support is available through phone and digital channels.
Investor Relations
https://investors.optimum.com/
Careers
https://www.optimum.com/careers
Optimum provides residential broadband internet using both fiber-to-the-home and upgraded hybrid fiber-coax networks. The company currently makes 1 Gbps broadband available across much of its HFC footprint, while selected fiber markets support symmetrical speeds of up to 8 Gbps.
Optimum Fiber provides fiber-to-the-home connectivity in eligible markets. Fiber service can offer symmetrical upload and download speeds and is designed for heavy streaming, gaming, remote work, cloud applications, and homes with many connected devices.
Optimum provides video and television packages with live channels, entertainment programming, premium options, on-demand content, and supported streaming integrations. Video remains a major revenue category for the company.
Optimum Mobile provides wireless service for consumers. The mobile business has grown as the company increasingly focuses on combining broadband and wireless relationships within the same household.
Optimum provides residential voice services for customers who want a traditional home telephone connection bundled with broadband or other services.
Optimum Business provides broadband connectivity for small businesses and other commercial customers. Offerings may include higher-speed internet, voice, Wi-Fi, managed networking, and related business communications tools.
Larger commercial customers can access dedicated connectivity, Ethernet, fiber, managed services, and other network solutions depending on location and requirements.
The company provides wholesale connectivity and network-related services to other businesses and communications providers.
Optimum Media is the company’s advertising and data-solutions business. It helps local, regional, and national advertisers reach audiences across multiple screens using targeted advertising and analytics capabilities.
News 12 is Optimum’s hyperlocal news operation serving communities in the New York metropolitan region and surrounding markets. It provides local news, weather, traffic, community reporting, and regional programming.
Optimum provides home Wi-Fi equipment and managed wireless-network functionality as part of qualifying internet services.
The My Optimum app allows customers to check bills, make payments, enroll in AutoPay, review account information, check network status, and manage selected services.
Optimum offers support through telephone, online chat, account tools, the My Optimum app, and physical retail stores.
Optimum operates retail locations where customers can receive account assistance, return equipment, review plans, and obtain help with eligible products and services.
516-803-2300
516-803-2300
516-803-2300
516-803-2300
For existing customers:
833-671-4549
833-671-4549
844-305-6001
Optimum publishes this number for customers considering new service.
833-671-4549 for existing customer support
844-305-6001 for new customer inquiries
Optimum does not publish a separate national billing-only line. Existing customers can use
833-671-4549
833-671-4549
The same current customer-support line handles technical-support routing.
General Optimum Mobile support is routed through current customer-service channels rather than a separately promoted universal corporate line.
No universal regional-office number is published.
Optimum retail stores have location-specific numbers where available.
No universal public international Customer Service number is prominently published.
No corporate emergency hotline is publicly promoted. Existing customer assistance is available through 24/7 customer-service channels.
John Hsu: 917-405-2097
Sarah Freedman: 631-660-8714
Lisa Anselmo: 516-279-9461
Taylor Chapman: 214-850-8985
No universal public HR phone number is prominently published.
https://www.optimum.com/careers
Not applicable.
For most existing-customer issues, call 833-671-4549. This is the current support number Optimum publishes for customers who need service, account help, upgrades, technical assistance, or billing support. Before calling, have the account holder’s name, service address, account number, billing details, and a description of the problem ready. If the issue involves equipment or an outage, note the equipment model, error messages, and troubleshooting steps already attempted.
Customers can also use online chat or the My Optimum app. For problems that may be easier to resolve in person, such as equipment returns, account verification, or certain service changes, an Optimum retail location can be more efficient. New customers should use 844-305-6001, while existing customers should use 833-671-4549 so the representative can access the active account.
For corporate, investor, regulatory, or media matters, do not rely on the ordinary consumer line. Corporate matters can be directed to 516-803-2300, while investor and media inquiries should use the specialized contacts published by Optimum Communications.
Complaints may involve billing errors, service outages, installation issues, internet speed, equipment, mobile service, cancellation, technician visits, advertising, account changes, or customer-service interactions. Before escalating, gather the account number, service address, bills, payment records, screenshots, speed-test records if relevant, technician appointment information, and case numbers from earlier contacts.
Call 833-671-4549 and explain the issue clearly. Ask the representative to review the account history, billing entries, service records, or technical notes connected with the complaint. Request a reference number whenever one is available and record the date, time, and representative’s name. A clear timeline of the problem can make later escalation substantially easier.
Ask to be transferred to the team most closely connected with the problem, such as billing, technical support, retention, mobile, installation, or equipment support. If the issue concerns a business account, use the appropriate business-services channel rather than residential support. Providing precise dates, disputed amounts, service outages, or device information can help the specialized team resolve the complaint faster.
If the first-level representative cannot resolve the issue, request a supervisor or escalation specialist. Explain what steps have already been attempted, which promises were made, and what remains unresolved. Ask that all relevant notes be added to the account and request written confirmation when the company agrees to a billing adjustment, service credit, cancellation, or other remedy.
Use Optimum’s online support, chat, or documented digital contact methods to create a written record of the dispute. Save transcripts, screenshots, emails, and confirmation numbers. Written documentation is particularly useful when the complaint concerns recurring billing, cancellation requests, equipment returns, or multiple unsuccessful technician appointments.
For a serious unresolved matter, write to:
Optimum Communications, Inc.
1 Court Square West
Long Island City, NY 11101
Include the account number, service address, previous case numbers, dates, disputed charges or service issues, and the resolution requested. Send copies rather than original records and keep proof of delivery.
If the issue involves a contractual dispute, regulatory matter, mobile-service problem, privacy issue, or another specialized concern, ask Optimum to identify the correct internal escalation or legal/regulatory team. Review the applicable service agreement for any required notice procedure before beginning arbitration or another formal dispute process.
Telecommunications and cable complaints may fall under different regulators depending on the issue and jurisdiction. The Federal Communications Commission can handle certain broadband, telephone, accessibility, and communications-related complaints, while state or local cable-franchise authorities may have jurisdiction over other issues.
For billing or payment problems, customers may also contact their state Attorney General, consumer-protection agency, or card issuer when appropriate. A chargeback should generally be reserved for a genuine payment dispute and should not replace an attempt to resolve an ordinary service complaint directly with Optimum.
If all reasonable escalation channels fail, review the current Optimum service agreement for arbitration, small-claims, legal-notice, or dispute-resolution provisions. Keep complete records of bills, service interruptions, support transcripts, account notes, and corporate correspondence because these documents may be important in any formal proceeding.
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