B2B contacts in SIC Optical Instruments & Lenses (3827)
RampedUp holds 21,551 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, 9,657 carry a professional email address and 2,216 carry a mobile number. Ranked #224 of 587 SIC codes.
What the records carry
Field coverage for Optical Instruments & Lenses (3827), counted from the October 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 | 9,657 | 44.8% | 19.3% |
| Personal email | 2,404 | 11.2% | 13.3% |
| Phone (any) | 19,230 | 89.2% | 35.3% |
| Mobile number | 2,216 | 10.3% | 7.4% |
| Primary contact record | 15,328 | 71.1% | 32.1% |
| All five present on one record | 451 | 2.1% | 1.6% |
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 number2,216
- Optical Instruments & Lenses (3827) with a professional email address9,657
- Optical Instruments & Lenses (3827) with all five fields present451
Why a second filter changes the answer. The October 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 |
|---|---|---|---|---|
| 222 | Wines, Brandy, And Brandy Spirits (2084) | 21,788 | 10,622 | 3,600 |
| 223 | Regulation and Administration of Communications, Electric, Gas, and Ot (9631) | 21,624 | 6,420 | 543 |
| 225 | Architectural Metal Work (3446) | 21,170 | 10,216 | 2,180 |
| 226 | Dairy Products, Exc. Dried Or Canned (5143) | 20,064 | 8,811 | 1,705 |
Questions about this slice
How many Optical Instruments & Lenses (3827) contacts does RampedUp have?
RampedUp holds 21,551 professional profiles for Optical Instruments & Lenses (3827) as of the October 2026 build, which is 0.0% of all profiles carrying a SIC code and 0.0% of the global file of 893,501,354.
How many Optical Instruments & Lenses (3827) contacts have an email address?
9,657 carry a professional email address (44.8% of Optical Instruments & Lenses (3827) records) and 2,404 carry a personal email address (11.2%).
How many Optical Instruments & Lenses (3827) contacts have a phone number?
19,230 carry a phone number of some kind (89.2%), of which 2,216 are mobile numbers (10.3% 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.