B2B contacts in SIC Optical Instruments & Lenses (3827)
RampedUp holds 21,067 professional profiles for Optical Instruments & Lenses (3827) as of the build — 0.0% of all profiles carrying a SIC code, and 0.0% of the global file. Of those, 9,359 carry a professional email address and 2,212 carry a mobile number. Ranked #223 of 585 SIC codes.
What the records carry
Field coverage for Optical Instruments & Lenses (3827), counted from the August 2026 build. The global column is there so you can see whether this slice runs above or below the file as a whole.
| Field on the record | Optical Instruments & Lenses (3827) records | Share of Optical Instruments & Lenses (3827) | Global share |
|---|---|---|---|
| Professional email | 9,359 | 44.4% | 18.9% |
| Personal email | 2,266 | 10.8% | 13.3% |
| Phone (any) | 18,723 | 88.9% | 34.9% |
| Mobile number | 2,212 | 10.5% | 7.4% |
| Primary contact record | 14,937 | 70.9% | 32.4% |
| All five present on one record | 421 | 2.0% | 1.5% |
Go deeper in the Count Explorer
Everything above is an exact count for Optical Instruments & Lenses (3827) on its own. To put Optical Instruments & Lenses (3827) together with a second filter — a title level, a job function, a company size band, a revenue band — open it in the Count Explorer. It arrives with Optical Instruments & Lenses (3827) already selected, and it tells you on every answer whether the number is exact or an estimate.
- Optical Instruments & Lenses (3827) with a mobile number2,212
- Optical Instruments & Lenses (3827) with a professional email address9,359
- Optical Instruments & Lenses (3827) with all five fields present421
Why a second filter changes the answer. The August 2026 cube holds one dimension at a time, so a count for Optical Instruments & Lenses (3827) on its own is read straight out of it and is exact. Combine Optical Instruments & Lenses (3827) with a second dimension and the cube has no such cell — the explorer estimates it, shows the ceiling it cannot exceed, and labels it an estimate rather than passing it off as a measured number.
Comparable SIC codes
The SIC codes ranked either side of Optical Instruments & Lenses (3827) by profile count.
| # | SIC code | Profiles | Professional email | Mobile |
|---|---|---|---|---|
| 221 | Radio Broadcasting Stations (4832) | 21,670 | 10,830 | 3,798 |
| 222 | Regulation and Administration of Communications, Electric, Gas, and Ot (9631) | 21,204 | 6,104 | 531 |
| 224 | Wines, Brandy, And Brandy Spirits (2084) | 20,927 | 9,915 | 3,463 |
| 225 | Architectural Metal Work (3446) | 20,694 | 9,876 | 2,163 |
Questions about this slice
How many Optical Instruments & Lenses (3827) contacts does RampedUp have?
RampedUp holds 21,067 professional profiles for Optical Instruments & Lenses (3827) as of the August 2026 build, which is 0.0% of all profiles carrying a SIC code and 0.0% of the global file of 895,093,624.
How many Optical Instruments & Lenses (3827) contacts have an email address?
9,359 carry a professional email address (44.4% of Optical Instruments & Lenses (3827) records) and 2,266 carry a personal email address (10.8%).
How many Optical Instruments & Lenses (3827) contacts have a phone number?
18,723 carry a phone number of some kind (88.9%), of which 2,212 are mobile numbers (10.5% of Optical Instruments & Lenses (3827) records).
Need this cross-filtered?
These are exact counts for Optical Instruments & Lenses (3827) on its own. For Optical Instruments & Lenses (3827) combined with a title level, a company size or a required field, use the explorer — or ask and we will run it against the live file.