AS8918 — CARRIER1-AS

AS8918 announces 7 IPv4 prefixes covering 24,320 addresses and 0 IPv6 prefixes.

About this network

CARRIER1-AS is held today by Coolwave Communications Limited, a Dublin wholesale voice and messaging carrier (SIP trunking, voice origination and termination, global DIDs, A2P SMS, IoT SIMs). Coolwave is now part of the Gamma group — Gamma Telecom appears as one of the AS's upstreams.

What it's used for

• Carrier infrastructure for Coolwave's voice and messaging platform, not consumer or hosting services: roughly 24,000 IPv4 addresses across 212.4.192.0/19 and 213.239.0.0/18, with no IPv6 announced.
• The AS peers heavily for its size, including at AMS-IX and NL-ix — what a voice/messaging wholesaler needs in order to reach its interconnect partners cheaply.

Notable

• The CARRIER1 name is a handle that outlived its holder. Inside 212.4.192.0/19 the individual /24s are still CARRIER1-NETS objects under a CARRIER1-MNT maintainer, while the enclosing allocations were renamed to IE-COOLWAVE-19980810 and IE-COOLWAVE-20000228. Nothing about the current network is a 1990s pan-European carrier.
• Essentially no rDNS resolves across either block, and the delegated reverse servers for the 212.4 space do not answer — so there is no eyeball, hosting or subscriber signature to be found. The space backs a B2B telecoms platform.

Interesting

• The aut-num object still carries import policies for a long list of customer ASNs that no longer appear in the routing table. Routing-policy objects age badly, and a stale aut-num can make a network look far larger than it is.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 212.4.192.0/19
• 213.239.0.0/20
• 213.239.16.0/21
• 213.239.24.0/22
• 213.239.28.0/24
• 213.239.30.0/23
• 213.239.32.0/19

Upstream networks

• AS31655 Gamma Telecom Holdings Ltd
• AS24785 Broadband Hosting B.V.
• AS20562 Broadband Hosting B.V.
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS6696 VERIXI SA
• AS56655 Gigahost AS
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS12779 IT.Gate S.p.A.
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS48185 team.blue NV
• AS20485 Joint Stock Company TransTeleCom
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS37721 Virtual Technologies & Solutions
• AS48362 Stadtwerke Feldkirch
• AS50673 Serverius Holding B.V.
• AS204092 Association GRIFON

Adjacent networks

• AS31655 Gamma Telecom Holdings Ltd
• AS24785 Broadband Hosting B.V.
• AS20562 Broadband Hosting B.V.
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS50673 Serverius Holding B.V.
• AS12779 IT.Gate S.p.A.
• AS48362 Stadtwerke Feldkirch
• AS6696 VERIXI SA
• AS48185 team.blue NV
• AS56655 Gigahost AS
• AS37721 Virtual Technologies & Solutions
• AS204092 Association GRIFON
• AS50300 CustodianDC Limited
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS24482 SG.GS
• AS20485 Joint Stock Company TransTeleCom

Routing security

• RPKI: 0 valid, 0 invalid and 4 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-BBNED-AMSIX1, AS-BSVE:AS-AMSIX-PEERS, AS-CARRIERONE, AS-DDITS:AS-PEERS, AS-DOCLER:AS-PEERS, AS-FINECOM-PEERS-AMSIX, AS-GAMMATELECOM, AS-GTTCUST, AS-HWNG-DOWNSTREAMS, AS-MANDA-AMSIX-PEERS-V4, AS-MFNX, AS-TITANAMSIX, AS-XO-B, AS-XPOINTML, AS1200:AS-AMS-IX-PEERS, AS16243:AS-PEERS-AMSIX, AS174:AS-COGC-028, AS20847:AS-PREVIDER-PEERS, AS20932:AS-PEERING, AS25151:AS-NL-IX-PEERS, AS28747:AS-AMS-IX-PEERS, AS28747:AS-NL-IX-PEERS, AS34968:AS-AMS-IX-PEERS, AS6777:AS-AMS-IX-RS, AS6777:AS-AMS-IX-RS-SETS.

Internet exchanges

• AMS-IX Amsterdam — Amsterdam, Netherlands
• Neutral Internet Exchange — Amsterdam, Netherlands