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Updated June 2026!

Goodman’s Book Marks provides a navigational gateway to top-quality telecom resources and industry information for both professionals and consumers. From carrier directories and wireless insights to vendor listings and technical references, our site helps you find answers fast without the clutter.

 Who It’s For:

• Telecom engineers & technology researchers
• IT procurement teams and service planners
• Small businesses comparing telecom services
• Students and curious learners exploring telecom topics

Explore a comprehensive list of major and regional telecommunications carriers, long-distance resellers, CLECs, and broadband providers serving the United States.

·         Verizon Communications – https://www.verizon.com/ — Major national wireless & broadband provider.

·         AT&T Inc. – https://www.att.com/ — National wireless, broadband & enterprise services.

·         T-Mobile US – https://www.t-mobile.com/ — Major nationwide wireless carrier.

·         Comcast Corporation (Xfinity) – https://www.xfinity.com/ — Cable, internet & voice provider.

·         Charter Communications (Spectrum) – https://www.spectrum.com/ — Broadband & cable services.

·         Lumen Technologies (formerly CenturyLink) – https://www.lumen.com/ — Fiber and enterprise networks.

·         Cox Communications – https://www.cox.com/ — Broadband, phone & business connectivity.

·         Altice USA – https://www.alticeusa.com/ — Broadband, television & phone services.

·         Frontier Communications – https://frontier.com/ — Internet and phone services.

·         Vonage (Vonage Business / Consumer) – https://www.vonage.com/ — Cloud communications & VoIP.

·         GTT Communications – https://www.gtt.net/ — Global network and managed services.

·         Iridium Communications – https://www.iridium.com/ — Satellite voice & data.

·         AST SpaceMobile – https://www.space-mobile.com/ — Space-based broadband and connectivity.

·         Telephone and Data Systems, Inc. (TDS Telecom) – https://www.tdstelecom.com/ — Telecom & internet services.

·         Cable One / Sparklight – https://www.sparklight.com/ — Cable broadband & phone provider.

·         Brightspeed – https://www.brightspeed.com/ — Broadband & local phone services (assets spun off from Lumen).

·         Globalstar – https://www.globalstar.com/ — Satellite communications & IoT connectivity.

·         Cogent Communications – https://www.cogentco.com/ — Internet backbone & IP transit services.

·         Array Digital Infrastructure (formerly U.S. Cellular / UScellular brand) – https://www.arrayinc.com/ — Wireless infrastructure & spectrum asset management (brand formerly UScellular).

·         InterDigital, Inc. – https://www.interdigital.com/ — Wireless research, standards & connectivity tech (telecom-oriented IP and R&D).

Notes & Context

·         Some companies are cable/broadband providers (e.g., Charter, Comcast, Cox, Cable One) rather than traditional wireless carriers, but all fit within the telecommunications services industry.

·         A few, like AST SpaceMobile and Iridium, focus on satellite or space-based connectivity, which is an emerging subset of telecom services.

·         U.S. Cellular’s traditional mobile operations were acquired by T-Mobile in 2025; the remaining business was renamed Array Digital Infrastructure, but the historic UScellular website still exists as a brand reference.