I get repeated call from this and other numbers. just beep-beep-beep. other last 4 digits are: 8158, 5967,6571 and 3371. One research response said it was a fax number.
I traced these 'beep' numbers to an apartment located on 13th Ave West in Vancouver, BC. Longitude 49.26, Latitude -123.14 (copy paste into google maps search), unfortunately this only provides a range of house numbers. The beep is an computerized auto-dialer - first one to answer gets the sales pitch. The number is a land line. Can't pinpoint the owner, because the number is private. These telemarketers buy up a range of hundreds of numbers - in this case 604-681-XXXX. That's all I've got. Can't keep or block them all - as these guys just change 1 digit and they're calling again! Occasionally I call back immediately and let it ring until it connects - this jams up their auto-dial system for that number - no one answers of course - if the call goes through, just stay on the line until it hangs up. They've been calling my number for 6 years now, and this is the closest I've come to tracing it.