We have used a variety of services to find the owners cellphones (seamless AI, truepeoplesearch, whitepages, etc.). However, each of them lists multiple cellphones (typically 3+) for each owner. We find that the first listed number is only right 20-30% of the time, and often its the 2nd, 3rd, 4th, etc. cellphone that is right.

Has anybody found a way (or a third party service) that will verify the cellphone? Would save us a lot of time calling these numbers that are wrong or no longer in service.