subnet.im

AS8918Coolwave Communications Limited

IrelandRegistryRIPE NCC

As of 23rd October 2026, AS8918 (Coolwave Communications Limited), a network registered in Ireland with RIPE NCC, originates 4 IPv4 prefixes covering 25.1k addresses. By IPv4 address space that makes it the 6,198th-largest of the 79,658 networks we see originating IPv4, and the 15th-largest of 194 in Ireland. It is seen behind 25 upstream networks, most often AS31655 (Gamma Telecom Holdings Ltd) and AS24785 (Joint Transit (Broadband Hosting B.V.)). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

4

IPv6 prefixes

0

IPv4 addresses

25.1k

IPv6 /64s

0

Upstream graph

The networks AS8918 is seen behind, one and two hops out, drawn from real AS paths.

AS8918Toward the internet core
Upstream graph for AS8918: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8918Coolwave Communic…This networkAS6939Hurricane Electri…AS7713PT Telkom Indones…AS20562Open Peering (Bro…AS24785Joint Transit (Br…AS31655Gamma Telecom Hol…AS20130Depaul UniversityAS35280F5 Networks SARLAS1299Arelion (fka. Tel…AS13030Init7 (Switzerlan…AS32590Valve CorporationAS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS8918 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

152

adjacent networks

Upstreams
2516%
Peers
12784%
Downstreams
00%

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

Upstreams of AS8918
NetworkCountryRelationshipPathsVantage pts
AS31655Gamma Telecom Holdings LtdGBPeer10777
AS24785Joint Transit (Broadband Hosting B.V.)NLPeer9777
AS20562Open Peering (Broadband Hosting B.V.)NLPeer5226
AS7713PT Telkom Indonesia TbkIDPeer63
AS18106Viewqwest Pte LtdSGPeer42
AS6939Hurricane Electric LLCUSPeer42
AS25091IP-Max SACHPeer21
AS132337AxclusiveSGPeer21
AS7195EdgeUnoCOPeer21
AS49544i3D.net B.VNLPeer21

Prefixes

The largest blocks AS8918 originates, widest first.

Largest prefixes originated by AS8918
PrefixAddressesVisibility
213.239.0.0/1816.4k77/77
212.4.192.0/198.2k77/77
212.4.195.0/2425677/77
213.239.0.0/2425677/77

Routing health

How AS8918'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%4

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 4 prefixes

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS8918 started or stopped in this period.

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