Free EDGAR tools / SIC codes / 3661
SIC 3661 — Telephone & Telegraph Apparatus
SIC code 3661 is the SEC's Standard Industrial Classification for Telephone & Telegraph Apparatus, part of the Manufacturing division. Filings from companies under this code are reviewed by the SEC's Office of Manufacturing. There are currently 10 listed companies (of 211 EDGAR registrants past and present) classified under 3661. Live data from SEC EDGAR, free, no login.
Listed companies in SIC 3661
| Company | Ticker | Exchange | Revenue (TTM) |
|---|---|---|---|
| CIENA CORP | CIEN | NYSE | $4.4B |
| Fabrinet | FN | NYSE | $3.5B |
| ADTRAN Holdings, Inc. | ADTN | Nasdaq | $1.0B |
| NETGEAR, INC. | NTGR | Nasdaq | $700.0M |
| AUDIOCODES LTD | AUDC | Nasdaq | $242.2M |
| Clearfield, Inc. | CLFD | Nasdaq | $181.3M |
| DNA X, Inc. | SONM | Nasdaq | $59.1M |
| FRANKLIN WIRELESS CORP | FKWL | Nasdaq | $51.9M |
| FiEE, Inc. | FIEE | Nasdaq | $2.6M |
| CLEARONE INC | CLRO | Nasdaq | — |
Companies currently listed on a major exchange, largest trailing-twelve-month revenue first (companies without extracted XBRL revenue sort last). Each links to its filings and financials.
Related SIC codes (major group 36)
Track filings from these companies
Every company above links to its edgar.tools page with filings, financials, and ownership. To watch the whole industry's filings in real time, open the live filing stream — or verify the classification at the source via EDGAR's browse-by-SIC search.
SIC 3661 API
Free JSON · no key · no loginGET https://app.edgar.tools/sic/3661.jsonCode definition plus the live company list.