Company · TMUS · CIK 1283699

T-Mobile US, Inc. (TMUS) SEC filings and CIK.

TMUS’s SEC Central Index Key (CIK) is 0001283699, or 1283699 without leading zeros. The SEC’s ticker file lists it as T-Mobile US, Inc.. The same CIK also trades as TMUSZ, TMUSI, TMUSL.

Ticker: TMUS
CIK: 0001283699
Other tickers: TMUSZ, TMUSI, TMUSL
Insider transactions: None loaded

Recent filings we observed

No filings for this CIK appear in our current observation window. The full history is available from the filings endpoint below and on SEC.gov.

Get TMUS SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=1283699&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/1283699" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/1283699?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · T-Mobile US, Inc. on SEC.gov

Questions

What is TMUS’s CIK number?

TMUS’s SEC Central Index Key (CIK) is 0001283699, or 1283699 without leading zeros. The SEC’s ticker file lists it as T-Mobile US, Inc.. The same CIK also trades as TMUSZ, TMUSI, TMUSL.

How do I find T-Mobile US, Inc.’s 10-K?

Request /api/v1/filings?cik=1283699&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

We hold no filings or insider data for this company beyond its ticker and CIK, so this page is not submitted to search engines.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-11. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/tmus.md

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