Clean your phone list before you spend a cent
Nuvio Engine teamJune 27, 20265 min read
Most imported phone lists carry 8 to 15 percent junk: wrong lengths, stray characters, duplicates across sources and numbers stored in three different formats.
Normalising to E.164 makes deduplication reliable, because +1 (415) 555-0134 and 4155550134 finally compare as equal.
Structural validation catches impossible numbers before your provider bills you for them. Nuvio Phone Verification does both in one pass across US and Canadian lists.