Anchored Registry · address directory
150.251.46.0/23
ULTRANET · AM
As the registry publishes it
inetnum: 150.251.46.0 - 150.251.47.255netname: ULTRANETstatus: LEGACYorg: ORG-UL307-RIPE (Ultranet LLC) — its only sponsored resourcesponsoring-org: ORG-RNB17-RIPE (RTM Networks B.V.)
What a PI assignment costs
RIPE charges a member €75 a year for each provider-independent address assignment, on top of €1,800 for the membership — the 2026 Charging Scheme. Everything above that is the sponsor’s own price:
| Sponsoring LIR | PI assignment / year | Their price page |
|---|---|---|
| Bakker IT NL | €135 | check it |
| iFog CH | 99 CHF | check it |
| Snapserv CH | €125 | check it |
| ServPerso BE | quoted | not linked |
| Ipregistry — | €240 | not linked |
Read from each sponsor’s own published price list on 2026-08-22, 5 days ago. iFog publishes in Swiss francs and the figures are its own, not a conversion. Where a row says “not linked”, the price was not re-read against the vendor’s page and should be checked before you rely on it.
Anchored Registry quotes rather than publishing a figure, because an AS number and an address assignment do not cost the same to sponsor and one number for both would overcharge somebody.
Sponsor history
| 2026-08-27 | gained | — | ORG-RNB17-RIPE |
Be told before you find out the hard way
One message if 150.251.46.0/23 changes hands or changes sponsor.
RIPE publishes only the current database and no dated archive, so this is not something you can look up later — it is only knowable if somebody was watching. Free, no account, and a way out in every message.
RTM Networks B.V. sponsors 51 resources in total. If you are weighing a move: I am Tropynin Oleg, ORG-TO334-RIPE, a RIPE member with my own autonomous system AS41800. Nothing about your routing changes and RIPE charges nothing for the transfer.