The Scenario
Your calling team starts Monday. It's Friday afternoon and the sales ops lead just sent you an Excel workbook with 1,500 leads — phone numbers in column B, company names in column A, nothing else. The last time someone handed the calling team a raw list without screening it, they burned two hours dialling disconnected numbers and got their outbound number flagged as spam by a VoIP carrier.
You need to know which numbers are mobile, which are landline, which are VoIP, and which are dead before Monday morning.
The bad version:
- Export column B to CSV, upload the batch to a phone validation tool, wait, download the result.
- Match the results back to the original workbook by phone number — which means cleaning the format differences between E.164 in the export and the format your sales team used when collecting.
- Manually add DO NOT CALL labels to the disconnected rows, realise there are 200 of them, and mark each one individually.
The calling team starts in 48 hours. The format matching and manual labelling alone will eat most of Friday evening.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent that lives inside your Excel workbook. It reads the worksheet and through its built-in Addressfinder integration it can verify every phone number, classify the line type, and write the results back — including a DO NOT CALL flag on disconnected rows — without any manual data handling.
For every phone number in column B, call Addressfinder Phone Verification and write the line type, connection status, and formatted E.164 number into columns C, D, and E
What You Get
- Column C: line type — MOBILE, LANDLINE, VOIP, or UNKNOWN
- Column D: connection status — CONNECTED, DISCONNECTED, or UNVERIFIABLE
- Column E: the number formatted as E.164 (e.g. +61412345678)
- Rows where column B is blank are skipped and left empty across columns C–E
What If the Data Is Not Quite Ready
Numbers are formatted inconsistently — some with country codes, some without
Normalise all phone numbers in column B to E.164 format assuming AU country code for numbers without a prefix, then verify each one using Addressfinder Phone Verification and write the line type and connection status to columns C and D
You need to flag DO NOT CALL rows and highlight them
Flag all rows where the phone in column B is disconnected or fails range checks as DO NOT CALL in column F and highlight those rows red
Some numbers belong to international leads, not AU
For phone numbers in column B, use the country in column A to determine the country code before running Addressfinder Phone Verification — write the line type, connection status, and E.164 number to columns C, D, and E
Screen, segment, flag, and summarise in one shot
For all phone numbers in column B: normalise to E.164 assuming AU, verify using Addressfinder Phone Verification, write line type to column C and connection status to column D, add DO NOT CALL in column E for any DISCONNECTED row, then write a summary table at the bottom of the sheet showing counts for mobile, landline, VoIP, and disconnected
One prompt, one pass — no stitching separate steps together on a Friday afternoon.
Try It
Get the 7-day free trial of SheetXAI and open your lead workbook before the next calling campaign, then ask it to run Addressfinder phone verification on your number column and flag the rows you shouldn't be dialling. For email validation on the same list, see validating emails with Addressfinder, or return to the hub overview.