T-Mobile US, Inc. is the second-largest wireless network operator in the United States with 140 million subscribers as of September 2025. Originally founded as VoiceStream Wireless in 1994, the company was renamed T-Mobile after Deutsche Telekom acquired plurality ownership in 2001 and currently holds a 51.4% stake. T-Mobile operates through primary retail brands T-Mobile and Metro by T-Mobile, offering mobile voice, data, and messaging services, with recent expansion into low-cost MVNO services through Mint Mobile and Ultra Mobile acquisitions. The company's growth strategy includes significant acquisitions including Sprint (2020), Assurance Wireless, Mint Mobile, Ultra Mobile (2024), and UScellular's wireless operations (August 2025). Signal Plug searches live against tmobile.com's mail server to find and verify email addresses for any T-Mobile US, Inc. employee.
Signal Plug searches live against tmobile.com's mail server — not a static database. Get a verified email for any T-Mobile US, Inc. employee with confidence score in under 2 seconds.
94% accuracy · No credit card required · 10 free searches/month
T-Mobile US, Inc. is the second-largest wireless network operator in the United States with 140 million subscribers as of September 2025. Originally founded as VoiceStream Wireless in 1994, the company was renamed T-Mobile after Deutsche Telekom acquired plurality ownership in 2001 and currently holds a 51.4% stake. T-Mobile operates through primary retail brands T-Mobile and Metro by T-Mobile, offering mobile voice, data, and messaging services, with recent expansion into low-cost MVNO services through Mint Mobile and Ultra Mobile acquisitions. The company's growth strategy includes significant acquisitions including Sprint (2020), Assurance Wireless, Mint Mobile, Ultra Mobile (2024), and UScellular's wireless operations (August 2025).
Competitive Advantage
T-Mobile operates as a subsidiary of Deutsche Telekom while also being publicly listed on NASDAQ, creating a unique dual-ownership structure; the company reversed the traditional acquisition model by having MetroPCS reverse-merge into T-Mobile in 2013, resulting in T-Mobile's NASDAQ listing; T-Mobile maintains multiple low-cost MVNO brands (Mint Mobile, Ultra Mobile) as separate entities rather than consolidating them under the T-Mobile name; the company's 2020 Sprint acquisition included the assumption of the federal Assurance Wireless Lifeline program, adding a social services component to its portfolio.
The most commonly verified format at T-Mobile US, Inc.:
Medium ConfidenceSignal Plug tests all common patterns against T-Mobile US, Inc.'s live mail server and returns whichever passes the SMTP check.
Run a live search for T-Mobile US, Inc. →Data-driven signals to help you prospect T-Mobile US, Inc. effectively.
B2B vendors and infrastructure providers sell to T-Mobile for network operations, infrastructure maintenance, and technology services. Enterprise software and telecom equipment companies target T-Mobile as a major buyer and integrator of communications solutions.
Primary Contact
Chief Technology Officer
Tuesday–Thursday, 9am–11am
Signal Plug performs live SMTP verification against tmobile.com's mail server — not a static scraped database — which means results reflect the real, current state of T-Mobile US, Inc.'s email infrastructure. Here's how to run a lookup:
Create a free account
Sign up at Signal Plug in under 30 seconds. No credit card required. The Free plan includes 10 searches per month so you can test the tool with real T-Mobile US, Inc. contacts before upgrading.
Enter the contact's name
Type the first and last name of the T-Mobile US, Inc. employee you want to reach. Signal Plug handles all seniority levels, from C-suite to individual contributors.
Enter the domain
Use tmobile.com. Signal Plug tests all common naming patterns automatically and returns only the format that passes the SMTP check.
Get a verified result
Signal Plug returns an email address with a confidence score (0–100) and deliverability status (Valid, Risky, or Catch-all) within 2 seconds. The confidence score tells you how reliable the result is before you use it.
Export and use
One-click CSV export lets you bring T-Mobile US, Inc. contacts into Salesforce, HubSpot, Outreach, Lemlist, or any other tool in your stack. Growth and Scale plan users can run bulk lookups across an entire list of T-Mobile US, Inc. names in a single batch.
T-Mobile US, Inc. competes directly with Verizon Communications, AT&T Inc., United States Cellular Corporation in the Telecommunications space.
| Company | Size | Tier | Focus | Email Format |
|---|---|---|---|---|
| T-Mobile US, Inc. | Wireless Network Operations | firstname.lastname | ||
| Verizon Communications | — | — | — | firstname.lastname |
| AT&T Inc. | — | — | — | firstname.lastname |
| United States Cellular Corporation | — | — | — | firstname.lastname |
Whether you're running outbound sales, recruiting, or building a partnership list, these are the roles most frequently contacted at Telecommunications like T-Mobile US, Inc..
Based on T-Mobile US, Inc.'s profile, the highest-value contacts for outbound are:
Signal Plug works for any role at any seniority level at tmobile.com. If you have a name and the domain, you can find a verified email.
How well T-Mobile US, Inc. fits a typical B2B outbound pipeline, based on available signals.
Moderate Fit
Funnel Fit Score
Most email finder tools pull from static databases of scraped email addresses. These databases go stale as people change jobs and companies update their email infrastructure. Signal Plug takes a different approach: every search performs a live check against tmobile.com's mail server using SMTP verification. This means results reflect the current state of T-Mobile US, Inc.'s email system — not a cached result from months or years ago.
Signal Plug enriches every result with supporting data: a confidence score (0–100), deliverability status (Valid, Risky, or Catch-all), job title where available, and LinkedIn profile URL. This context helps you prioritize which T-Mobile US, Inc. contacts to email first and personalize your outreach before you hit send. Plans start at $29/month for 500 searches — no annual contracts or seat fees.
Signal Plug performs a live SMTP check against tmobile.com's mail server for every query — not a static database lookup. Our platform-wide accuracy rate is 94%. Each result comes with a confidence score (0–100) so you can gauge reliability before using the address.
Free plan: 10 searches. Starter ($29/mo): 500. Growth ($149/mo): 2,000. Scale ($299/mo): 5,000. No company-specific caps.
No. Signal Plug generates and verifies emails in real time via SMTP checks — no static database of T-Mobile US, Inc. employee emails is maintained.
Yes. Growth and Scale plan users can upload a CSV of names and run bulk lookups against tmobile.com in a single batch.
T-Mobile was founded in 1994 as VoiceStream Wireless by John W. Stanton of Western Wireless Corporation.
Deutsche Telekom, a German telecommunications company, is the majority shareholder with a 51.4% stake as of April 2023.
T-Mobile has 140 million subscribers as of September 30, 2025.
T-Mobile operates under the brands T-Mobile, Metro by T-Mobile, Mint Mobile, Ultra Mobile, and Assurance Wireless.
Signal Plug searches in real time against tmobile.com's mail server to find and verify email addresses for T-Mobile US, Inc. employees. Enter a name, enter the domain, get a verified result with a confidence score in under 2 seconds.
Start finding emails free →10 free searches · No credit card required · Upgrade from $29/month