Extreme reliance on three tenants creates significant risk and makes relationship management with these key accounts a top corporate priority. Any disruption with these tenants would have a material impact on the entire business, creating a need for robust customer management and diversification strategies.
Filing excerpt
Our largest tenants are T-Mobile, AT&T and Verizon Wireless, which collectively accounted for approximately 90% of our 2025 site rental revenues.
What this signalsFilings often name leadership changes, deals and spending plans.
Vendors
sec-10kcustomerConcentrationGet every 10-K signal for Crown Castle and the companies you sell to, in the tools you already use.
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This page shows a preview. The full sec-10k record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.
Company
linkedin_urlValue in the APIindustriesValue in the APIemployee_count_lowValue in the APIemployee_count_highValue in the APIrevenueValue in the APIdescriptionValue in the APISignal
signal_nameValue in the APIassociationValue in the APIGET /v1/signals/9e0880fe-2fae-4ad7-b3cc-92a0b49d0414 returns this record as JSON. POST /v1/companies/enrich returns every signal for crowncastle.com.
{
"signal_id": "9e0880fe-2fae-4ad7-b3cc-92a0b49d0414",
"signal_type": "sec-10k",
"signal_subtype": "customerConcentration",
"detected_at": "2026-02-24T09:23:47.443+00:00",
"company": {
"name": "Crown Castle",
"domain": "crowncastle.com"
},
"data": {
"detail": "Extreme reliance on three tenants creates significant risk and makes relationship management with these key accounts a top corporate priority. Any disruption with these tenants would have a material impact on the entire business, creating a need for robust customer management and diversification strategies.",
"metrics": {
"pct": 0.9,
"timeframe": "current_year",
"pct_context": "Portion of 2025 site rental revenues from T-Mobile, AT&T, and Verizon"
},
"summary": "T-Mobile, AT&T, and Verizon account for 90% of 2025 site rental revenues.",
"excerpts": "Our largest tenants are T-Mobile, AT&T and Verizon Wireless, which collectively accounted for approximately 90% of our 2025 site rental revenues.",
"relevance": 0.8,
"sentiment": "neutral",
"confidence": "high",
"source_url": "https://www.sec.gov/Archives/edgar/data/1051470/000105147026000016/cci-20251231.htm",
"filing_date": "2026-02-23",
"filing_year": 2026,
"fiscal_year_end": "12/31",
"sales_relevance": "Diversification strategy",
"signal_category": "market",
"vendors_mentioned": [
"T-Mobile",
"AT&T",
"Verizon Wireless"
]
}
}
curl https://signals.autobound.ai/v1/signals/9e0880fe-2fae-4ad7-b3cc-92a0b49d0414 \
-H "X-API-KEY: $AUTOBOUND_API_KEY"curl -X POST https://signals.autobound.ai/v1/companies/enrich \
-H "X-API-KEY: $AUTOBOUND_API_KEY" \
-H "Content-Type: application/json" \
-d '{"domain":"crowncastle.com","limit":20}'Long text fields are shortened on this page.
Looking up one signal by its id is free. Enrich costs 2 credits per signal returned; a call with no results is free.