NAICS Code 33421: Telephone Apparatus Manufacturing
NAICS industry
Definition
This industry comprises establishments primarily engaged in manufacturing wire telephone and data communications equipment. These products may be stand-alone or board-level components of a larger system. Examples of products made by these establishments are central office switching equipment, cordless and wire telephones (except cellular), PBX equipment, telephone answering machines, LAN modems, multi-user modems, and other data communications equipment, such as bridges, routers, and gateways.
Government contracts for this product: PSC 7G21 IT Network: Digital Network Products
Code facts
- Part of
-
-
31-33
-
334
- 3342
-
334
-
31-33
- Codes under it
- 1
- Contract awards
- 241 In the last 12 months
- Contract obligations
- $454,800,010 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Business activities under NAICS 334210
- Carrier equipment (i.e., analog, digital), telephone, manufacturing
- Central office and switching equipment, telephone, manufacturing
- Communications headgear, telephone, manufacturing
- Cordless telephones (except cellular) manufacturing
- Data communications equipment (e.g., bridges, gateways, routers) manufacturing
- Facsimile equipment, standalone, manufacturing
- Keysets, telephone, manufacturing
- Local area network (LAN) communications equipment (e.g., bridges, gateways, routers) manufacturing
- Modems, carrier equipment, manufacturing
- Multiplex equipment, telephone, manufacturing
- PBX (private branch exchange) equipment manufacturing
- Private branch exchange (PBX) equipment manufacturing
- Repeater and transceiver equipment, carrier line, manufacturing
- Subscriber loop equipment, telephone, manufacturing
- Switching equipment, telephone, manufacturing
- Telephone answering machines manufacturing
- Telephone carrier line equipment manufacturing
- Telephone carrier switching equipment manufacturing
- Telephones (except cellular telephone) manufacturing
- Telephones, coin-operated, manufacturing
- Toll switching equipment, telephone, manufacturing
- Wide area network communications equipment (e.g., bridges, gateways, routers) manufacturing
Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $1,422,994 |
| FY2026 | $1,434,114,920 |
| FY2025 | $454,800,010 |
| FY2024 | $234,871,184 |
| FY2023 | $193,173,262 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Rohde & Schwarz Usa, Inc. | $650,689,424 | |
| 2 | Frequentis Usa, Inc. | $546,685,043 | |
| 3 | Iron Bow Technologies, LLC | $114,996,517 | |
| 4 | Colossal Contracting LLC | $55,273,109 | |
| 5 | L3Harris Technologies, Inc. | $18,271,600 | |
| 6 | Gzo, Inc. | $13,262,400 | |
| 7 | Motorola Solutions, Inc. | $9,884,714 | |
| 8 | L3Harris Technologies, Inc. | $5,451,635 | |
| 9 | JSI Telecom Inc. | $3,705,990 | |
| 10 | HPI Federal LLC | $2,330,133 |
See the full FY2025 ranking of NAICS 33421 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Transportation | $1,199,720,218 | |
| 2 | Air Force | $137,948,455 | |
| 3 | Social Security Administration | $55,247,751 | |
| 4 | Department of the Army | $30,498,985 | |
| 5 | Department of the Navy | $4,917,054 | |
| 6 | Department of Justice | $3,843,166 | |
| 7 | Defense Logistics Agency | $3,093,241 | |
| 8 | Department of State | $439,995 | |
| 9 | Department of Health and Human Services | $341,075 | |
| 10 | Smithsonian Institution | $194,828 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 7G21 IT and Telecom – Network: Digital Network Products (Hardware and Perpetual License Software) | $1,198,786,349 | |
| 2 | 7C20 IT and Telecom – Data Center Products (Hardware and Perpetual License Software) | $170,780,004 | |
| 3 | 7G20 IT and Telecom – Network: Analog Voice Products (Hardware and Perpetual License Software) | $18,579,936 | |
| 4 | 7C21 IT and Telecom – Other Data Center Facilities Products (Hardware and Perpetual License Software) | $17,808,858 | |
| 5 | 7G22 IT and Telecom – Network: Satellite and RF Communications Products (HW, Perpetual License Software) | $10,725,000 | |
| 6 | 5810 Communications Security Equipment and Components | $6,095,791 | |
| 7 | 5805 Telephone and Telegraph Equipment | $2,757,787 | |
| 8 | 5999 Miscellaneous Electrical and Electronic Components | $2,330,383 | |
| 9 | 7B22 IT and Telecom – Compute: Servers (Hardware and Perpetual License Software) | $2,227,124 | |
| 10 | 5821 Radio and Television Communication Equipment, Airborne | $1,820,000 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Maryland | $1,260,710,263 | |
| 2 | Virginia | $125,982,508 | |
| 3 | Florida | $18,259,074 | |
| 4 | Texas | $9,518,578 | |
| 5 | Colorado | $3,941,415 | |
| 6 | Georgia | $3,650,283 | |
| 7 | California | $2,924,139 | |
| 8 | District of Columbia | $2,472,672 | |
| 9 | New York | $2,033,100 | |
| 10 | North Carolina | $1,608,060 | |
| 11 | Kentucky | $1,503,000 | |
| 12 | South Carolina | $490,634 | |
| 13 | Indiana | $149,220 | |
| 14 | Delaware | $144,227 | |
| 15 | Pennsylvania | $142,898 | |
| 16 | Montana | $137,555 | |
| 17 | Alabama | $108,530 | |
| 18 | Arizona | $107,724 | |
| 19 | North Dakota | $48,709 | |
| 20 | Oklahoma | $43,291 | |
| 21 | Alaska | $37,941 | |
| 22 | Missouri | $33,485 | |
| 23 | New Mexico | $25,370 | |
| 24 | Iowa | $18,989 | |
| 25 | Louisiana | $15,958 | |
| 26 | Illinois | $15,682 | |
| 27 | Tennessee | $12,358 | |
| 28 | New Jersey | $12,274 | |
| 29 | Oregon | $3,300 |
Show all 29
Shares are of everything obligated under NAICS 33421 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 6,483 listed here. See the rest on GovTribe.
Codes under 33421
| NAICS code | Size standard |
|---|---|
| 334210 Telephone Apparatus Manufacturing | 1,250 employees |
Quick answers
What is NAICS 33421?
NAICS 33421 is Telephone Apparatus Manufacturing, a NAICS industry in NAICS 31-33, Manufacturing.
What is the NAICS code for telephone answering machines manufacturing?
The NAICS code for telephone answering machines manufacturing is 334210, Telephone Apparatus Manufacturing. Its SBA small business size standard is 1,250 employees.
What is the NAICS code for cordless telephones (except cellular) manufacturing?
The NAICS code for cordless telephones (except cellular) manufacturing is 334210, Telephone Apparatus Manufacturing. Its SBA small business size standard is 1,250 employees.
What is the NAICS code for telephones (except cellular telephone) manufacturing?
The NAICS code for telephones (except cellular telephone) manufacturing is 334210, Telephone Apparatus Manufacturing. Its SBA small business size standard is 1,250 employees.
What codes are under NAICS 33421?
NAICS 33421 has one code under it with its own GovTribe page, 334210 Telephone Apparatus Manufacturing.
How much do federal agencies spend under NAICS 33421?
Federal contracts under NAICS 33421 obligated $454,800,010 in fiscal year 2025 and $2,318,382,370 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 33421?
The contractors with the most obligated under NAICS 33421 in fiscal years 2026 and 2027 are Rohde & Schwarz Usa, Inc. ($650,689,424); Frequentis Usa, Inc. ($546,685,043); and Iron Bow Technologies, LLC ($114,996,517).
Which agencies buy the most under NAICS 33421?
The agencies that obligated the most under NAICS 33421 in fiscal years 2026 and 2027 are Department of Transportation ($1,199,720,218), Air Force ($137,948,455) and Social Security Administration ($55,247,751).
Which PSC codes are used with NAICS 33421?
The PSC codes with the most obligated under NAICS 33421 in fiscal years 2026 and 2027 are 7G21 IT and Telecom – Network: Digital Network Products (Hardware and Perpetual License Software), 7C20 IT and Telecom – Data Center Products (Hardware and Perpetual License Software) and 7G20 IT and Telecom – Network: Analog Voice Products (Hardware and Perpetual License Software).
Where is the work under NAICS 33421 performed?
By place of performance, the states with the most contract obligations under NAICS 33421 over the last 12 months are Maryland ($1,260,710,263), Virginia ($125,982,508) and Florida ($18,259,074).
What is the latest contract opportunity under NAICS 33421?
The latest contract opportunity under NAICS 33421 is Phone Server Replacement at Seba Dalkai Boarding S, solicitation from Bureau of Indian Education (BIA), posted November 10, 2026.
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See everything under NAICS 33421
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