subnet.im

AS199081Lancom Ltd.

GreeceRegistryRIPE NCC

As of 26th September 2026, AS199081 (Lancom Ltd.), a network registered in Greece with RIPE NCC, originates 67 IPv4 prefixes covering 28.9k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 5,784th-largest of the 79,516 networks we see originating IPv4, and the 21st-largest of 225 in Greece. It is seen behind 25 upstream networks, most often AS3356 (Lumen (Level 3)) and AS3257 (GTT Communications Inc.), and in front of 28 downstream networks. 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

67

IPv6 prefixes

6

IPv4 addresses

28.9k

IPv6 /64s

17.1M

Upstream graph

The networks AS199081 is seen behind, one and two hops out, drawn from real AS paths.

AS199081Toward the internet core
Upstream graph for AS199081: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS199081Lancom Ltd.This networkAS174Cogent Communicat…AS3257GTT Communication…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS9002RETN LimitedAS151326DCConnect Communi…AS6667Elisa OyjAS398465Rackdog LLCAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS6453TATA Communicatio…AS51907Kanton Zug

Networks observed one and two hops upstream of AS199081 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

212

adjacent networks

Upstreams
2512%
Peers
15975%
Downstreams
2813%

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

Upstreams of AS199081
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer3,067107
AS3257GTT Communications Inc.USPeer2,50592
AS9002RETN LimitedGBPeer1,78254
AS174Cogent Communications, LLCUSPeer1,04697
AS6939Hurricane Electric LLCUSPeer39733
AS24940Hetzner Online GmbHDEPeer1002
AS50673Serverius Holding B.V.NLPeer6945
AS50869Free-IX Remote PeeringCHPeer582
AS25091IP-Max SACHPeer282
AS39122Blacknight Internet Solutions LimitedIEPeer282

Prefixes

All 73

The largest blocks AS199081 originates, widest first.

Largest prefixes originated by AS199081
PrefixAddressesVisibility
5.172.192.0/204.1k81/81
109.68.144.0/212k81/81
178.21.168.0/212k81/81
91.193.60.0/221k81/81
185.70.76.0/221k81/81
185.205.96.0/221k81/81
185.232.240.0/221k80/81
195.35.92.0/221k80/81
46.226.194.0/2351280/81
185.168.38.0/2351281/81

Routing health

How AS199081'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%73
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%73
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 67 prefixes

IPv6 — 6 prefixes

  • /4016.8M × /6416.7%1
  • /4865.5k × /6483.3%5

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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