CIK 0001001807 · Telephone Communications (No Radiotelephone) (SIC 4813) · NYSE · fiscal year ends 12/31
| Filed | Form | Description | Period |
|---|---|---|---|
| 2026-10-20 | 3 | PRIMARY DOCUMENT | 2026-10-07 |
| 2026-10-02 | 6-K | 6-K | 2026-10-02 |
| 2026-10-02 | 6-K | 6-K | 2026-10-02 |
| 2026-10-02 | 6-K | 6-K | 2026-10-02 |
| 2026-10-01 | 6-K | 6-K | 2026-09-30 |
| 2026-10-01 | 6-K | 6-K | 2026-09-30 |
| 2026-09-18 | 6-K | 6-K | 2026-09-18 |
| 2026-09-08 | 6-K | 6-K | 2026-09-08 |
| 2026-08-07 | 3 | PRIMARY DOCUMENT | 2026-08-04 |
| 2026-08-07 | 6-K | 6-K | 2026-08-07 |
| 2026-08-07 | 6-K | 6-K | 2026-08-07 |
| 2026-08-07 | 6-K | 6-K | 2026-08-07 |
| 2026-07-31 | 6-K | 6-K | 2026-07-31 |
| 2026-07-15 | 3 | PRIMARY DOCUMENT | 2026-07-07 |
| 2026-07-01 | 6-K | 6-K | 2026-07-01 |
| 2026-06-25 | 6-K | 6-K | 2026-06-25 |
| 2026-06-24 | 6-K | 6-K | 2026-06-24 |
| 2026-06-18 | 6-K | 6-K | 2026-06-18 |
| 2026-06-10 | 6-K | 6-K | 2026-06-10 |
| 2026-06-08 | 6-K | 6-K | 2026-06-08 |
| 2026-06-04 | 6-K | 6-K | 2026-06-04 |
| 2026-06-04 | 6-K | 6-K | 2026-06-04 |
| 2026-06-03 | 6-K | 6-K | 2026-06-03 |
| 2026-05-29 | 6-K | 6-K | 2026-05-29 |
| 2026-05-19 | 6-K | 6-K | 2026-05-16 |
Forms on file (last 1,000): 6-K 572, 20-F 24, 3 20, IRANNOTICE 11, CORRESP 5, UPLOAD 4, 20-F/A 4, NT 20-F 3. Source: SEC EDGAR, as filed; this page is public data and not investment advice.
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