Visibility index · United States
Mobile carriers
33 AI answers to 10 prompts name 15 brands. T-Mobile leads with 17.1% of mentions; the top 3 hold 48.7%.
Level 3n = 33 answers10 promptsupdated Oct 9, 2026AI Mode9ChatGPT8AI Overviews8Gemini8
AI answers
33
10 prompts
Last run Oct 9, 2026
Brands seen
15
Top 3 hold 48.7%
n = 33 answers
Concentration
Fragmented
HHI 1,133 · leader 17.1%
Leader
T-Mobile
17.1% of mentions
Top engine
AI Mode
27.3% of answers
4 engines sampled
Sources cited
99
Top: verizon.com 13.1%
n = 33 answers
What AI answers show
Brands and sources in the sampled answers
n = 33 answers10 promptsOct 9, 2026
Brands AI recommends
Share of brand mentions in Mobile carriers answers
n = 33 answers15 brands seen in total
Market concentrationFragmented
FragmentedModerateConcentrated
HHI 1,133Leader 17.1%Top 3 48.7%
Fragmented: no brand dominates. The top 3 hold 48.7% of mentions; the leader 17.1%.
Answers behind the ranking
Every engine sampled
- Google AI Mode9
- ChatGPT8
- AI Overviews8
- Gemini8
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