subnet.im

AS197091METROPORT Sp. z o.o.

PolandRegistryRIPE NCC

As of 27th September 2026, AS197091 (METROPORT Sp. z o.o.), a network registered in Poland with RIPE NCC, originates 4 IPv4 prefixes covering 2k addresses. By IPv4 address space that makes it the 25,307th-largest of the 79,523 networks we see originating IPv4, and the 503rd-largest of 2,096 in Poland. It is seen behind 7 upstream networks, most often AS3356 (Lumen (Level 3)) and AS9002 (RETN Limited), and in front of 10 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 75% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

4

IPv6 prefixes

0

IPv4 addresses

2k

IPv6 /64s

0

Upstream graph

The networks AS197091 is seen behind, one and two hops out, drawn from real AS paths.

AS197091Toward the internet core
Upstream graph for AS197091: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS197091METROPORT Sp. z o…This networkAS3356Lumen (Level 3)AS6939Hurricane Electri…AS9002RETN LimitedAS24940Hetzner Online Gm…AS49544i3D.net B.VAS3549Lumen (fka. Globa…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS6453TATA Communicatio…AS51907Kanton ZugAS2914NTT America, Inc.

Networks observed one and two hops upstream of AS197091 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

49

adjacent networks

Upstreams
714%
Peers
3265%
Downstreams
1020%

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

Upstreams of AS197091
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer57763
AS9002RETN LimitedGBPeer15816
AS6939Hurricane Electric LLCUSPeer4111
AS24940Hetzner Online GmbHDEPeer171
AS49544i3D.net B.VNLPeer111
AS24482SG.GSSGPeer102
AS137409GSL Networks Pty LTDAUPeer11

Prefixes

The largest blocks AS197091 originates, widest first.

Largest prefixes originated by AS197091
PrefixAddressesVisibility
217.11.136.0/221k81/81
195.43.72.0/2351281/81
195.43.73.0/2425615/81
217.11.136.0/2425681/81

Routing health

How AS197091'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%4
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more75.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%25.0%1

Prefix sizes

IPv4 — 4 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS197091 started or stopped in this period.

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