Glossary
Range database
Definition
A commercial dataset mapping number ranges to carriers, line types and risk scores, queried by services deciding whether to accept a number.
Why it matters
Published numbering plans form the basis, then portability data and observed behaviour are layered on top. When a service says "this number is not supported", it queried such a database and received an unfavourable answer. Providers cannot change that result; they can only offer ranges that score well in those databases.
Related terms
- VoIP vs non-VoIP numberA classification based on which block a number was allocated from, either a VoIP block or a mobile carrier range; the delivery technology does not matter.
- Recycled numberA recycled number is one previously held by someone else and reissued, potentially carrying that holder's existing service registrations.
Related reading
Sources
- ITU-T E.164 national numbering plans (Operational Bulletin annex) · International Telecommunication UnionPer-country numbering plans, mobile ranges, trunk prefixes
- ITU-T Recommendation E.212 — Mobile network identification · International Telecommunication UnionMobile country codes and network codes used to identify carriers
Part of the HushSMS glossary — 18 terms defined.