The company has significant revenue concentration with a few large carriers in each region, such as AT&T, T-Mobile, and Verizon (85% in U.S. & Canada) and Telefónica (70% in Europe). This creates substantial risk if any key tenant reduces spending, consolidates, or negotiates less favorable terms.
Filing excerpt
U.S. & Canada: AT&T Inc. (“AT&T”); T-Mobile US, Inc. (“T-Mobile”); and Verizon Communications Inc. (“Verizon Wireless”) accounted for an aggregate of 85% of U.S. & Canada property segment revenue.
What this signalsFilings often name leadership changes, deals and spending plans.
Competitors
Regions named
Competitors named
sec-10kcustomerConcentrationGet every 10-K signal for American Tower 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/c8ce61a4-9dcc-4a5e-8fc8-c4489b6f6488 returns this record as JSON. POST /v1/companies/enrich returns every signal for americantower.com.
{
"signal_id": "c8ce61a4-9dcc-4a5e-8fc8-c4489b6f6488",
"signal_type": "sec-10k",
"signal_subtype": "customerConcentration",
"detected_at": "2026-03-03T05:51:34.074+00:00",
"company": {
"name": "American Tower",
"domain": "americantower.com"
},
"data": {
"detail": "The company has significant revenue concentration with a few large carriers in each region, such as AT&T, T-Mobile, and Verizon (85% in U.S. & Canada) and Telefónica (70% in Europe). This creates substantial risk if any key tenant reduces spending, consolidates, or negotiates less favorable terms.",
"metrics": {
"pct": 0.85,
"timeframe": "current_year",
"pct_context": "Revenue concentration from top 3 tenants in U.S. & Canada segment"
},
"summary": "Top tenants account for 70-85% of revenue in each major geographic segment.",
"excerpts": "U.S. & Canada: AT&T Inc. (“AT&T”); T-Mobile US, Inc. (“T-Mobile”); and Verizon Communications Inc. (“Verizon Wireless”) accounted for an aggregate of 85% of U.S. & Canada property segment revenue.",
"relevance": 1,
"sentiment": "negative",
"confidence": "high",
"source_url": "https://www.sec.gov/Archives/edgar/data/1053507/000105350726000035/amt-20251231.htm",
"filing_date": "2026-02-24",
"filing_year": 2026,
"fiscal_year_end": "12/31",
"sales_relevance": "Diversification strategy",
"signal_category": "market",
"regions_mentioned": [
"U.S. & Canada",
"Africa & APAC",
"Europe",
"Latin America"
],
"competitors_mentioned": [
"AT&T Inc.",
"T-Mobile US, Inc.",
"Verizon Communications Inc.",
"Bharti Airtel Limited",
"MTN Group Limited",
"Telefónica S.A.",
"América Móvil",
"TIM S.p.A."
]
}
}
curl https://signals.autobound.ai/v1/signals/c8ce61a4-9dcc-4a5e-8fc8-c4489b6f6488 \
-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":"americantower.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.