Telephone & Telegraph Apparatus companies

9 companies file with the SEC under industry code 3661, Telephone & Telegraph Apparatus. The largest by market value include Ciena Corp, Fabrinet and Clearfield, Inc.. Open a company for its income statement, balance sheet, cash flow, and SEC filings.

Ciena Corp10-Q filed Sep 3, 2026 CIEN Fabrinet10-Q filed Nov 3, 2026 FN Clearfield, Inc.10-Q filed Aug 6, 2026 CLFD ADTRAN Holdings, Inc.10-Q filed Aug 4, 2026 ADTN Audiocodes Ltd20-F filed Mar 30, 2026 AUDC Franklin Wireless Corp10-K filed Sep 28, 2026 FKWL Voip-pal.com Inc10-Q filed Aug 14, 2026 VPLM Clearone Inc10-Q filed Aug 14, 2026 CLRO DNA X, Inc.10-Q filed Aug 19, 2026 SONM

Listed largest first, by the order of the SEC's ticker file. Industry codes are the Standard Industrial Classification (SIC) codes the SEC assigns to each filer.