Guides
HLR lookup vs MNP lookup vs number validation: what each one answers
Validation checks the digits, MNP finds the current network, HLR asks the network if the number is live. What each answers, costs and misses.
7 min read
Articles tagged “Number validation”
2 articles.
Guides
How to check if a phone number is active (and what "active" really means)
Valid, active, reachable and registered mean different things. The methods for checking each one, what they cost and where every method falls short.
7 min read