The Scenario
Three days after a fundraising drive closed, 120 people replied "STOP" to the text messages. A volunteer coordinator collected all the opt-out numbers into column A of the 'Opt-Outs' worksheet. Now they need to go into DialMyCalls' Do Not Contact list before the next campaign broadcast goes out in 48 hours.
Nobody caught this immediately. The coordinator discovered it this morning when she noticed the opt-out worksheet was sitting unprocessed in a shared folder. The next broadcast is already scheduled.
The bad version:
- Open DialMyCalls, navigate to the DNC settings, and start adding phone numbers one at a time through the "Add number" form.
- Realize after the twentieth entry that there's a bulk-upload option, but it wants a specific CSV format — so you go back to the workbook, export it, reformat the single column, re-upload.
- The import succeeds but you have no record of which numbers were already on the DNC list vs. which ones were newly added — something the compliance team will ask about later.
120 numbers, a deadline 48 hours out, and a compliance team that wants an audit trail. The math on doing this by hand doesn't work.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent inside your Excel workbook. It reads the workbook and through its DialMyCalls integration it can check each number against the existing DNC list, add only the ones that are missing, and write a status back so you have a record. Open the sidebar and ask.
Read all phone numbers in column A of the 'Opt-Outs' worksheet, check each against the DialMyCalls Do Not Contact list, and add any number not already present. Write 'Added' or 'Already on DNC' into column B for each row.
What You Get
- Every number in column A checked against the live DialMyCalls DNC registry.
- New numbers added to DNC in bulk.
- Column B written with 'Added' or 'Already on DNC' for each row — a timestamped record you can hand to compliance.
- No duplicate entries created in the DNC list.
What If the Data Is Not Quite Ready
Phone numbers are in inconsistent formats (some with dashes, some with parentheses)
Before checking against DNC, normalize all numbers in column A to digits-only 10-digit format, then check each against the DialMyCalls Do Not Contact list and add missing ones.
Opt-outs span two worksheets: 'Opt-Outs-Q1' and 'Opt-Outs-Q2'
Combine all phone numbers from the 'Opt-Outs-Q1' and 'Opt-Outs-Q2' worksheets, deduplicate, then check each against the DialMyCalls DNC list and add any number not already present. Write the result status back into column B of each source worksheet.
You need the current full DNC list exported for a compliance report at the same time
Fetch the full DialMyCalls Do Not Contact list and write all blocked numbers into a new 'DNC Registry' worksheet. Then check column A of the 'Opt-Outs' worksheet against that list and add any missing numbers to DialMyCalls DNC.
Normalize, dedup, check DNC, add missing, and write a summary in one shot
Take all numbers in column A of the 'Opt-Outs' worksheet. Normalize to 10-digit format. Remove duplicates, keeping first occurrence. Check each against the DialMyCalls DNC list. Add any number not already present. Write 'Added', 'Already on DNC', 'Duplicate — skipped', or 'Invalid format' into column B. Then write a summary row at the top: total checked, newly added, already present, skipped.
Compliance gets a complete, annotated record of the entire operation in one pass.
Try It
Get the 7-day free trial of SheetXAI and open any Excel workbook with a list of phone numbers you need to block in DialMyCalls, then ask it to sync them to your DNC registry. See also: Bulk Import Contacts Into DialMyCalls Groups and the DialMyCalls hub overview.