subnet.im

AS48921Yoursafe Holding B.V.

NetherlandsRegistryRIPE NCC

As of 26th September 2026, AS48921 (Yoursafe Holding B.V.), a network registered in the Netherlands with RIPE NCC, originates 2 IPv4 prefixes covering 1.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 33,367th-largest of the 79,516 networks we see originating IPv4, and the 463rd-largest of 1,023 in the Netherlands. It is seen behind 2 upstream networks, most often AS24971 (MasterDC s.r.o.) and AS3356 (Lumen (Level 3)), and in front of 1 downstream network. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

1

IPv4 addresses

1.3k

IPv6 /64s

34.4B

Upstream graph

The networks AS48921 is seen behind, one and two hops out, drawn from real AS paths.

AS48921Toward the internet core
Upstream graph for AS48921: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS48921Yoursafe Holding …This networkAS3356Lumen (Level 3)AS24971MasterDC s.r.o.AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS1299Arelion (fka. Tel…AS9002RETN Limited

Networks observed one and two hops upstream of AS48921 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

6

adjacent networks

Upstreams
233%
Peers
350%
Downstreams
117%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS48921
NetworkCountryRelationshipPathsVantage pts
AS24971MasterDC s.r.o.CZPeer82073
AS3356Lumen (Level 3)USPeer37780

Prefixes

The largest blocks AS48921 originates, widest first.

Largest prefixes originated by AS48921
PrefixAddressesVisibility
83.223.48.0/221k81/81
195.20.32.0/2425681/81
2a04:16c0::/2934.4B × /6464/64

Routing health

How AS48921's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /2934.4B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS48921 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.