Guides
Carrier and line type lookup, explained
What carrier and line type data is, allocated vs current network, how porting changes it, and how to read every field of a carrier lookup answer.
8 min read
Articles tagged “SMS routing”
2 articles.
Guides
Mobile number portability: why carrier lookups can be wrong
A number's prefix shows the network its range was given to, not the one serving it today. How porting works, where lookups fail and how to handle it.
7 min read