AS5578 — AS-BENESTRA SWAN, a.s.

AS5578 announces 116 IPv4 prefixes covering 314,112 addresses and 17 IPv6 prefixes.

About this network

AS-BENESTRA is held by SWAN, a.s. of Bratislava, Slovakia's largest domestically owned alternative telecoms operator. Benestra merged into SWAN in the late 2010s, and SWAN later absorbed the mobile operator 4ka.

What it's used for

• Fixed connectivity, data services and internet access, historically weighted toward corporate and public-sector customers, which is the segment Benestra was built around and which SWAN still serves under its own brand.
• Consumer fixed and mobile services sit under the 4ka brand within the same group, so the AS carries a mix rather than a purely business estate.

Notable

• The Benestra name survived a long chain of ownership changes in the Slovak alternative-operator market before landing at SWAN; the AS handle is the last visible trace of it.
• With a few hundred thousand addresses, this is one of the larger non-incumbent networks in Slovakia.

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

Announced prefixes

• 62.65.160.0/19
• 62.152.224.0/19
• 62.168.64.0/18
• 62.197.192.0/18
• 80.250.240.0/20
• 81.88.128.0/20
• 82.119.224.0/22
• 82.119.230.0/23
• 82.119.232.0/21
• 83.168.128.0/18
• 84.245.64.0/20
• 84.245.80.0/21
• 84.245.90.0/23
• 84.245.92.0/23
• 84.245.94.0/24
• 84.245.96.0/19
• 85.248.0.0/20
• 85.248.16.0/21
• 85.248.28.0/23
• 85.248.30.0/24
• 85.248.32.0/22
• 85.248.38.0/23
• 85.248.40.0/21
• 85.248.48.0/20
• 85.248.64.0/21
• 85.248.72.0/23
• 85.248.75.0/24
• 85.248.76.0/23
• 85.248.79.0/24
• 85.248.80.0/20
• 85.248.96.0/20
• 85.248.112.0/21
• 85.248.120.0/22
• 85.248.125.0/24
• 85.248.126.0/23
• 85.248.128.0/20
• 85.248.144.0/21
• 85.248.156.0/22
• 85.248.160.0/19
• 85.248.192.0/19
• 85.248.224.0/21
• 85.248.232.0/23
• 85.248.234.0/24
• 85.248.236.0/22
• 85.248.240.0/21
• 85.248.248.0/24
• 85.248.250.0/23
• 85.248.252.0/22
• 94.124.144.0/21
• 185.130.220.0/22
• 185.161.174.0/23
• 185.220.120.0/22
• 193.58.192.0/22
• 193.58.196.0/23
• 193.108.132.0/23
• 193.110.186.0/23
• 194.1.172.0/22
• 194.1.224.0/21
• 195.12.128.0/21
• 195.12.136.0/24
• 195.12.138.0/23
• 195.12.140.0/22
• 195.12.144.0/20
• 195.46.64.0/19
• 195.62.16.0/23
• 195.72.0.0/19
• 195.98.0.0/22
• 195.98.4.0/23
• 195.98.6.0/24
• 195.98.8.0/21
• 195.98.16.0/20
• 195.98.134.0/24
• 195.168.0.0/18
• 195.168.64.0/19
• 195.168.96.0/21
• 195.168.104.0/22
• 195.168.108.0/23
• 195.168.111.0/24
• 195.168.112.0/20
• 195.168.128.0/18
• 195.168.192.0/20
• 195.168.209.0/24
• 195.168.210.0/23
• 195.168.212.0/22
• 195.168.217.0/24
• 195.168.220.0/22
• 195.168.224.0/20
• 195.168.241.0/24
• 195.168.242.0/23
• 195.168.244.0/22
• 195.168.248.0/21
• 195.245.78.0/23
• 212.26.160.0/19
• 212.81.0.0/20
• 212.81.17.0/24
• 212.81.18.0/23
• 212.81.20.0/22
• 212.81.24.0/21
• 213.215.64.0/24
• 213.215.66.0/23

and 33 more.

Upstream networks

• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS37721 Virtual Technologies & Solutions
• AS1836 green.ch AG
• AS48362 Stadtwerke Feldkirch
• AS212024 Marc Schmitt
• AS34019 Hivane Association
• AS12859 BIT BV
• AS24482 SG.GS
• AS213241 TECHIT.BE SRL
• AS29504 Freenet Liberec, z.s.
• AS3303 Swisscom (Schweiz) AG
• AS37100 SEACOM Limited
• AS8551 Bezeq International Ltd.
• AS6797 GlobalConnect AB
• AS12779 IT.Gate S.p.A.
• AS20485 Joint Stock Company TransTeleCom
• AS47232 ISP Alliance a.s.
• AS56662 Marcin Gondek
• AS17639 Converge ICT Solutions Inc.
• AS29632 Netassist International EOOD
• AS202297 Skylon Solutions Limited
• AS9002 RETN Limited

Downstream networks

• AS12837 "1 CLOUD LAB" LLC
• AS6862 GraTex International a.s.
• AS25373 National Agency for Network and Electronic Services
• AS48473 Towercom a.s.
• AS58328 IMAFEX, s.r.o.
• AS15962 Orange Slovensko a.s.
• AS2607 Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET
• AS203933 DataCentrum
• AS64488 IOPS, s.r.o.
• AS56800 LAST MILE spol. s r.o.
• AS206194 Dobry internet s. r. o.
• AS202819 edoma.net s.r.o.
• AS8264 Marlink AS
• AS212974 TomaNet s.r.o.
• AS206055 Specure GmbH
• AS16006 RUPKKI s.r.o.
• AS50128 CNC, a.s.
• AS61241 DONAU INFORMATIK s.r.o.
• AS57716 Skynet Telecom s.r.o.
• AS50242 LEVONET, s.r.o.
• AS208429 Platon Technologies, s.r.o.
• AS31117 ENERGOTEL a.s.
• AS198543 MAC TV s.r.o.
• AS206198 ELVISDK, s.r.o.
• AS196900 Axalnet, s.r.o.

Adjacent networks

• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS6939 Hurricane Electric LLC
• AS31117 ENERGOTEL a.s.
• AS12837 "1 CLOUD LAB" LLC
• AS6862 GraTex International a.s.
• AS213241 TECHIT.BE SRL
• AS15962 Orange Slovensko a.s.
• AS25373 National Agency for Network and Electronic Services
• AS48473 Towercom a.s.
• AS58328 IMAFEX, s.r.o.
• AS8551 Bezeq International Ltd.
• AS8778 Slovanet a.s.
• AS37100 SEACOM Limited
• AS2607 Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET
• AS50128 CNC, a.s.
• AS1836 green.ch AG
• AS37721 Virtual Technologies & Solutions
• AS20485 Joint Stock Company TransTeleCom
• AS6797 GlobalConnect AB
• AS29504 Freenet Liberec, z.s.
• AS203933 DataCentrum
• AS64488 IOPS, s.r.o.
• AS24482 SG.GS

Routing security

• RPKI: 53 valid, 0 invalid and 5 not-found announcements; 55 ROAs.
• ASPA: none published.
• IRR: 91% of announcements registered; 64 route objects.
• Listed in as-sets: AS-BENESTRA, AS-EMAXSIXPEERS, AS-ENERGOTEL_SIX_PEERS, AS-EWSK-SIX, AS-MANDA-DECIX-PEERS-V4, AS-MANDA-DECIX-PEERS-V6, AS-PRIMANETSIXPEERS, AS-RIS-RRC05, AS-SIXSK-MEMBERS, AS-SIXSTIP-SET, AS-SWAN, AS-VIX-MEMBERS, AS42000:AS-SIXSK-PEERINGS, AS6695:AS-DECIX-FRA-CONNECTED, AS6695:AS-DECIX-FRA-RS, AS6695:AS-DECIX-FRA-RS-V6.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• Peering.cz — Prague, Czech Republic
• NIX.CZ - Neutral Internet eXchange for the Czech Republic — Prague, Czech Republic
• Vienna Internet Exchange — Vienna, Austria
• Slovak Internet eXchange Bratislava — Bratislava, Slovakia