SIC 3661—Telephone and Telegraph Apparatus

Where 3661 sits

1. D Manufacturing
2. 36 Electronic and Other Electrical Equipment and Components, Except Computer Equipment
3. 366 Communications Equipment
4. 3661 Telephone and Telegraph Apparatus

Description

Establishments primarily engaged in manufacturing wire telephone and telegraph equipment. Included are establishments manufacturing modems and other telephone and telegraph communications interface equipment.

What 3661 includes

6-digit codes

• 366100 — Telephone and Telegraph Apparatus
• 366101 — Telephones and Telephone Apparatus
• 366102 — Telegraph and Related Apparatus
• 366199 — Telephone and Telegraph Apparatus, NEC

8-digit codes

• 36610000 — Telephone and telegraph apparatus
• 36610100 — Telephones and telephone apparatus
• 36610101 — Autotransformers for telephone switchboards
• 36610102 — Communication headgear, telephone
• 36610103 — Facsimile equipment
• 36610104 — Headsets, telephone
• 36610105 — Modems
• 36610106 — Switching equipment, telephone
• 36610107 — Telephone answering machines
• 36610108 — Telephone central office equipment, dial or manual
• 36610109 — Telephone dialing devices, automatic
• 36610110 — Telephone sets, all types except cellular radio
• 36610111 — Telephone station equipment and parts, wire
• 36610112 — Telephones, sound powered (no battery)
• 36610113 — Telephones, underwater
• 36610114 — Toll switching equipment, telephone
• 36610200 — Telegraph and related apparatus
• 36610201 — PBX equipment, manual or automatic
• 36610202 — Telegraph office switching equipment
• 36610203 — Telegraph or telephone carrier and repeater equipment
• 36610204 — Telegraph station equipment and parts, wire
• 36619900 — Telephone and telegraph apparatus, nec
• 36619901 — Carrier equipment, telephone or telegraph
• 36619902 — Data sets, telephone or telegraph
• 36619903 — Electronic secretary
• 36619904 — Message concentrators
• 36619905 — Multiplex equipment, telephone and telegraph
• 36619906 — Switchboards, telephone or telegraph
• 36619907 — Telephone cords, jacks, adapters, etc.
• 36619908 — Fiber optics communications equipment

Example activities

• auto-transformers for telephone switchboards
• carrier equipment, telephone and telegraph
• communications headgear, telephone
• data sets, telephone and telegraph
• facsimile equipment
• headsets, telephone
• message concentrators
• modems
• multiplex equipment, telephone and telegraph
• switchboards, telephone and telegraph
• switching equipment, telephone
• telegraph office switching equipment
• telephone answering machines
• telephone central office equipment, dial and manual
• telephone dialing devices, automatic
• telephone sets, except cellular radio telephone
• telephone station equipment and parts, wire
• telephones, sound powered (no battery)
• telephones underwater
• toll switching equipment, telephone

Cross-references for 3661

• Establishments primarily engaged in manufacturing cellular radio telephones are classified in Industry 3663.

3661 in other systems