subnet.im

AS58321Oxylion Sp. z o.o.

PolandRegistryRIPE NCCTypeEyeball

As of 27th September 2026, AS58321 (Oxylion Sp. z o.o.), an access network registered in Poland with RIPE NCC, originates 23 IPv4 prefixes covering 34k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 5,308th-largest of the 79,525 networks we see originating IPv4, and the 50th-largest of 2,096 in Poland. It is seen behind 9 upstream networks, most often AS12741 (Netia SA) and AS3257 (GTT Communications Inc.), and in front of 5 downstream networks. 96% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 58% of its routes reach at least 90% of full-feed peers, and 8 prefixes are also originated by another network.

At a glance

IPv4 prefixes

23

IPv6 prefixes

1

IPv4 addresses

34k

IPv6 /64s

34.4B

Upstream graph

The networks AS58321 is seen behind, one and two hops out, drawn from real AS paths.

AS58321Toward the internet core
Upstream graph for AS58321: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS58321Oxylion Sp. z o.o.This networkAS1299Arelion (fka. Tel…AS3257GTT Communication…AS6939Hurricane Electri…AS12741Netia SAAS24940Hetzner Online Gm…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS6667Elisa OyjAS398465Rackdog LLCAS20130Depaul UniversityAS6461Zayo BandwidthAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS58321 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

40

adjacent networks

Upstreams
923%
Peers
2665%
Downstreams
513%

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

Upstreams of AS58321
NetworkCountryRelationshipPathsVantage pts
AS12741Netia SAPLPeer2,253126
AS3257GTT Communications Inc.USPeer1,33491
AS1299Arelion (fka. Telia Carrier)SEPeer74137
AS6939Hurricane Electric LLCUSPeer1896
AS24940Hetzner Online GmbHDEPeer591
AS49544i3D.net B.VNLPeer531
AS5617Orange Polska Spolka AkcyjnaPLPeer222
AS24482SG.GSSGPeer174
AS20473The Constant Company, LLCUSPeer11

Prefixes

The largest blocks AS58321 originates, widest first.

Largest prefixes originated by AS58321
PrefixAddressesVisibility
109.199.0.0/198.2k81/81
81.161.192.0/204.1k81/81
109.207.48.0/204.1k81/81
5.104.248.0/212k81/81
81.161.192.0/212k81/81
81.161.200.0/212k81/81
176.227.160.0/212k81/81
178.249.88.0/212k81/81
185.34.76.0/221k81/81
185.73.88.0/221k81/81

Routing health

How AS58321'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

  • Valid95.8%23
  • Invalid4.2%1
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more58.3%14
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%41.7%10

Prefix sizes

IPv4 — 23 prefixes

IPv6 — 1 prefixes

  • /2934.4B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced195.114.1.0/2422nd Sept 2026
  • Withdrawn193.218.153.0/2421st Sept 2026
  • Withdrawn81.161.192.0/2421st Sept 2026
  • Withdrawn81.161.202.0/2421st Sept 2026

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