> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/naics/517810/ # NAICS code 517810: All Other Telecommunications The companies classified under NAICS 517810, where they are based, how big they are and how the code maps to SIC. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** NAICS 517810 is the code for All Other Telecommunications, in sector 51: Information. The companies counted under it are mostly very small: 71% have 50 or fewer employees, and 78% are headquartered in the United States. ## What is NAICS 517810? NAICS 517810 is the code for All Other Telecommunications. It belongs to sector 51: Information. NAICS, the North American Industry Classification System, is the standard U.S. government agencies use to sort businesses by what they mainly do, and each digit narrows the category. Most of the companies counted also carry SIC 4899, Communication services, in the older SIC system (98%). NAICS is a North American system, so companies outside the US, Canada and Mexico are placed in it by classification. - 71% of the companies counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. - The largest group is headquartered in the United States (78%). Within the US, California is the biggest state (21%). - Most were founded in the 2010s (45%), then the 2000s (32%). **Figure: How NAICS 517810 is built.** The code 517810 split into its parts: sector 51, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 517810. Each digit narrows the category.* ## Which companies are classified under NAICS 517810? The biggest by headcount range include Shaw Communications, Digi Spain Telecom, Sorenson Communications, Entel Perú and China Mobile International. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | Shaw Communications | Calgary, Canada | 10,001+ | | Digi Spain Telecom | Madrid, Spain | 10,001+ | | Sorenson Communications | Salt Lake City, UT | 10,001+ | | Entel Perú | Lima, Peru | 1,001 to 5,000 | | China Mobile International | New Territories, China | 1,001 to 5,000 | | Vantage Data Centers | Denver, CO | 1,001 to 5,000 | | Newfold Digital | Jacksonville, FL | 1,001 to 5,000 | | Wateen Telecom | Lahore, Pakistan | 1,001 to 5,000 | | Sasktel | Regina, Canada | 1,001 to 5,000 | | Centerfield | Los Angeles, CA | 1,001 to 5,000 | | Eastlink | Halifax, Canada | 1,001 to 5,000 | | Classic Tech | Kathmandu, Nepal | 1,001 to 5,000 | | Livexchange Technologies | Toronto, Mexico | 1,001 to 5,000 | | Tak Communications | Sioux Falls, SD | 1,001 to 5,000 | | Aviat Networks | Austin, TX | 501 to 1,000 | | Verveba Telecom | Richardson, TX | 501 to 1,000 | | Tucows | Toronto, Canada | 501 to 1,000 | | Bt Ireland | Dublin, Ireland | 501 to 1,000 | | Affinitiv | Buffalo Grove, IL | 501 to 1,000 | | Alaska Communications | Anchorage, AK | 501 to 1,000 | | Unitek Global Services | Jackson, MS | 501 to 1,000 | | Bite Latvija | Riga, Latvia | 501 to 1,000 | | Greater Media | Braintree, MA | 501 to 1,000 | | Mitto | Zurich, Switzerland | 201 to 500 | | Digital Nasional Berhad | Kuala, Malaysia | 201 to 500 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## Where are NAICS 517810 companies based? The largest groups are headquartered in the United States (78%), Canada (8%) and the United Kingdom (3%). **Figure: Where companies in NAICS 517810 are based.** Bars for the share of counted companies in NAICS 517810 headquartered in each country: United States 78%, Canada 8%, United Kingdom 3%, Spain 1%. *Share of counted companies in NAICS 517810 by headquarters country.* Within the United States, California (21%), Florida (10%) and New York (9%) lead. **Figure: US headquarters of companies in NAICS 517810, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 517810 headquartered in each state. The largest are California 21%, Florida 10%, New York 9%. *Share of counted US companies in NAICS 517810 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 517810? 71% of them have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of companies in NAICS 517810.** Seven columns for the share of counted companies in NAICS 517810 in each employee range: 11 to 50 71%, 51 to 200 19%, 201 to 500 7%, 501 to 1,000 1%, 1,001 to 5,000 2%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted companies in NAICS 517810 in each employee range.* ## How old are NAICS 517810 companies? Most were founded in the 2010s (45%), then the 2000s (32%). **Figure: When companies in NAICS 517810 were founded.** Eight columns for the share of counted companies in NAICS 517810 founded in each era: Before 1960 2%, 1960s 1%, 1970s 1%, 1980s 4%, 1990s 13%, 2000s 32%, 2010s 45%, 2020s 3%. *Share of counted companies in NAICS 517810 by the era they were founded in, for the ones that list a founding year.* ## How NAICS 517810 compares - 71% of companies in NAICS 517810 have 50 or fewer employees, against 60% across all NAICS codes on this site. - 48% were founded in 2010 or later, against 30% across all NAICS codes on this site. - California holds 21% of the US companies here, against 14% across all NAICS codes on this site. ## How do NAICS 517810 companies describe themselves? A code is assigned by classification, and a company does not choose its own, so the label a company uses for itself can differ. The most common labels here are Advertising Services (33%), Telecommunications (27%) and Public Relations and Communications Services (8%). **Figure: How companies in NAICS 517810 describe themselves.** Bars for the share of counted companies in NAICS 517810 that give each industry on their public profile: Advertising Services 33%, Telecommunications 27%, Public Relations and Communications Services 8%, Media Production 7%, IT Services and IT Consulting 7%, Technology; Information and Internet 5%. *Share of counted companies in NAICS 517810 by the industry they list on their public profile.* ## NAICS 517810 and the SIC system NAICS replaced SIC in 1997, but the two do not line up one to one: companies filed under one NAICS code can carry several SIC codes. These are the ones seen most. | Code | Title | Share of counted | | --- | --- | --- | | SIC 4899 | Communication services | 98% | ## Where NAICS codes come from NAICS is maintained by the U.S. Census Bureau with Canada and Mexico and revised every five years; the current edition is NAICS 2022. To check exactly what a code includes, search the [official NAICS index](https://www.census.gov/naics/) or read the Census Bureau's [guide to understanding NAICS](https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html). Pick a code by what a company mostly does, not by who it sells to. ## How do you reach the people at NAICS 517810 companies? The people to talk to are usually product, engineering and revenue leaders. You can build the list from this code in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the companies with NAICS code 517810 (All Other Telecommunications) ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the product, engineering and revenue leaders at companies with NAICS code 517810, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Others in sector 51: [NAICS 513210: Software Publishers](https://enrich.chat/naics/513210/)[NAICS 518210: Computing Infrastructure Providers, Data](https://enrich.chat/naics/518210/)[NAICS 517112: Wireless Telecommunications Carriers](https://enrich.chat/naics/517112/)[NAICS 513110: Newspaper Publishers](https://enrich.chat/naics/513110/)[NAICS 513130: Book Publishers](https://enrich.chat/naics/513130/)[NAICS 519210: Libraries and Archives](https://enrich.chat/naics/519210/)[NAICS 513120: Periodical Publishers](https://enrich.chat/naics/513120/)[NAICS 516120: Television Broadcasting Stations](https://enrich.chat/naics/516120/) NAICS 517810 by state: [California](https://enrich.chat/naics/517810/california/)[Florida](https://enrich.chat/naics/517810/florida/)[Texas](https://enrich.chat/naics/517810/texas/) ## Frequently asked questions ### What is NAICS code 517810? NAICS 517810 is the code for All Other Telecommunications, in sector 51: Information. ### What is the SIC code for NAICS 517810 (All Other Telecommunications)? 98% of the companies counted carry SIC 4899 (Communication services), but the two systems do not map one to one. ### Which companies are classified under NAICS 517810? The biggest by headcount range include Shaw Communications, Digi Spain Telecom, Sorenson Communications, Entel Perú and China Mobile International. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 517810 companies based? The largest groups are headquartered in the United States (78%), Canada (8%) and the United Kingdom (3%). ### How big are the companies in NAICS 517810? 71% have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. ### How do I find a company's NAICS code? Search the official NAICS index at the U.S. Census Bureau for the code that matches what the company mostly does. Public companies in the US also list a SIC code in their SEC EDGAR profile. ## Try this prompt Find the people at NAICS 517810 companies ```text Use www.enrich.chat to find the product, engineering and revenue leaders at companies with NAICS code 517810, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 517810 in California](https://enrich.chat/naics/517810/california/) - [NAICS 517810 in Florida](https://enrich.chat/naics/517810/florida/) - [NAICS 517810 in Texas](https://enrich.chat/naics/517810/texas/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)