subnet.im

AS154971 Cloud Lab s.r.o.

SlovakiaRegistryRIPE NCC

As of 24th October 2026, AS15497 (1 Cloud Lab s.r.o.), a network registered in Slovakia with RIPE NCC, originates 18 IPv4 prefixes covering 18.7k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 7,339th-largest of the 79,664 networks we see originating IPv4, and the 15th-largest of 191 in Slovakia. It is seen behind 10 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS174 (Cogent Communications, LLC), and in front of 12 downstream networks. 95% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 95% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

18

IPv6 prefixes

1

IPv4 addresses

18.7k

IPv6 /64s

4.3B

Upstream graph

The networks AS15497 is seen behind, one and two hops out, drawn from real AS paths.

AS15497Toward the internet core
Upstream graph for AS15497: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS154971 Cloud Lab s.r.o.This networkAS174Cogent Communicat…AS3223Voxility LLPAS6939Hurricane Electri…AS24940Hetzner Online Gm…AS49544i3D.net B.VAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS20130Depaul UniversityAS132337AxclusiveAS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS15497 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

65

adjacent networks

Upstreams
1015%
Peers
4366%
Downstreams
1218%

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

Upstreams of AS15497
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer1,875121
AS174Cogent Communications, LLCUSPeer68342
AS3223Voxility LLPGBPeer43873
AS49544i3D.net B.VNLPeer372
AS24940Hetzner Online GmbHDEPeer252
AS3303Swisscom (Schweiz) AGCHPeer61
AS24482SG.GSSGPeer22
AS132337AxclusiveSGPeer11
AS262355VSX NetworksBRPeer11
AS22356Durand do Brasil LtdaBRPeer11

Prefixes

The largest blocks AS15497 originates, widest first.

Largest prefixes originated by AS15497
PrefixAddressesVisibility
62.149.0.0/198.2k76/76
31.28.160.0/221k76/76
31.28.164.0/221k76/76
31.28.168.0/221k76/76
31.28.172.0/221k76/76
31.28.176.0/221k76/76
31.28.180.0/221k76/76
31.28.184.0/221k76/76
31.28.188.0/221k76/76
31.28.169.0/2425676/76

Routing health

How AS15497'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

  • Valid94.7%18
  • Invalid0.0%0
  • No ROA5.3%1

Propagation

  • Globally propagated90% of full-feed peers or more94.7%18
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%5.3%1

Prefix sizes

IPv4 — 18 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS15497 started or stopped in this period.

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