Level 3 Communications LLC: What It Is & Why They Call

Published by Jon Morgan | Co-Founder & Chief Editor

Last updated: October 3, 2026

FACT CHECKED by Jon Tobin, Business Attorney

Methodology
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Level 3 was a business communications and network company whose operations became part of CenturyLink, now Lumen. A legacy Level 3 carrier name or network record does not prove who is calling.

Lumen describes its business as networking, edge cloud, collaboration, cybersecurity, and managed services [1]. Check the current provider and service terms rather than assuming an old Level 3 label describes today’s offer.

Quick Summary

• Level 3 is not a typical consumer cell-phone brand. It is best understood as a legacy business and wholesale communications name.
• Lumen is the current brand to check. Level 3’s former operations became part of CenturyLink and then Lumen.
• Caller ID is not proof. A displayed carrier name can be inaccurate or spoofed.

What Does Level 3 Communications LLC Do?

Level 3 operated network infrastructure for carriers and businesses. It connected business and carrier networks rather than primarily selling household mobile plans.

Its services included IP connectivity, private networking, voice, data transport, internet transit, and managed services. Lumen’s current portfolio includes networking, collaboration, edge, cloud, and security services.

A Level 3 name may appear in an intermediary carrier record. For a specific call or account, check the contracting provider and use its official support channel; a network label alone does not identify the person who placed the call.

Level 3 Cell Phone Carrier

Level 3 was not a consumer wireless carrier selling mobile plans directly to the public. It supported carriers, internet providers, and businesses.

A wholesale carrier can sit behind another brand. That role explains why a legacy Level 3 name may appear in a carrier lookup without identifying the caller.

Level 3 VoIP number

A Level 3 or Lumen-related VoIP record does not mean calls are free or available to everyone. VoIP sends calls over IP networks.

Price and caller-ID treatment depend on the provider, plan, destination, and contract. Lumen says it is moving toward ending ordinary sales of non-Mass Markets voice and communications services while maintaining contractual and regulatory obligations [2]. Confirm the current product and price directly with the provider.

Read Lumen’s communication services support guidance before buying, renewing, or changing voice service. Existing service continues under applicable obligations, and additions or changes go through the account team’s review rather than ordinary new sales.

Advantages of level 3 communications VoIP (Voice over Internet Protocol)

Business VoIP can offer useful features, but the benefits depend on the provider and implementation. Confirm which features your specific service includes and how it handles outages before relying on them.

• It can combine calling, voicemail, caller-ID controls, and collaboration tools.
• It can support distributed teams across compatible devices and locations.
• It may reduce hardware or long-distance costs, but service fees and usage charges still apply.
• Call quality depends on bandwidth, network design, power, device setup, and emergency-calling support.
• A business should review security, number portability, recording, retention, and outage procedures.

These are general VoIP considerations, not a guarantee about a legacy Level 3 plan or any current Lumen offer. Compare the contract, supported equipment, emergency calling arrangements, and continuity plan before switching.

Is Level 3 LLC and Lumen the Same Company?

Level 3’s network and operations became part of CenturyLink after the acquisition closed on November 1, 2017 [3]. CenturyLink later adopted the Lumen brand, so an older Level 3 reference may appear alongside that name.

The completed Level 3 acquisition announcement documents the transaction, and the Lumen rebranding announcement explains the later brand change. These corporate events do not establish the identity of an individual caller.

An old Level 3 reference may coexist with a Lumen account or carrier record. The LLC label does not make a call trustworthy.

Is a Call From Level 3 Communications LLC Legitimate or a Scam?

Seeing “Level 3 Communications” on caller ID does not establish that the call is legitimate or that Lumen contacted you. Scammers can alter the displayed name or number to impersonate a business or government agency [4].

The Federal Trade Commission’s phone scam guidance explains why caller ID is not proof of identity. If a caller asks for passwords, security codes, payment details, or remote access, hang up and contact the business using a number from its official website or your contract.

You can report unwanted calls through the federal complaint channel [5]. Save the displayed number, date, time, and what the caller requested.

The FCC’s unwanted calls complaint page explains the reporting categories and process. A report may inform enforcement, but the FCC does not resolve individual unwanted-call complaints or promise an immediate stop.

FAQs

References:

1. https://www.lumen.com/en-us/about.html
2. https://www.lumen.com/content/docs/communication.html
3. https://ir.lumen.com/news/news-details/2017/CenturyLink-completes-acquisition-of-Level-3/default.aspx
4. https://consumer.ftc.gov/articles/phone-scams
5. https://consumercomplaints.fcc.gov/hc/en-us/articles/115002234203-Unwanted-Calls-Texts-Phone