AS8866 — VIVACOM-AS BULGARIA

Network type: residential

AS8866 announces 419 IPv4 prefixes covering 1,018,112 addresses and 18 IPv6 prefixes.

About this network

Vivacom Bulgaria EAD (VIVACOM-AS) — the principal network of Bulgaria's incumbent telecom operator, the former Bulgarian Telecommunications Company. The rDNS still carries the old identity throughout: everything resolves under btc-net.bg.

What it's used for

• Mass-market fixed broadband. The overwhelming majority of the space uses generic per-address naming of the form IP-ADDR.ip.btc-net.bg, the classic signature of a national incumbent's subscriber pools. Interleaved with them are the access and core routers that serve those pools: hosts named var-bras-1 and similar are BRAS units — broadband remote access servers, the equipment that terminates household DSL and fibre sessions.
• Backbone and metro transport, visible as core routers named for the cities they sit in (plo-cr-1, har-cr-1 — Plovdiv, Haskovo).
• A minority of business and hosting assignments carry customer names directly (mail2.master-bg.com, dsrv1.comsoft.bg), alongside a block still under telnet.bg, an ISP absorbed into the group.

Notable

• Large eyeball address space: roughly 770,000 IPv4 addresses across close to a thousand prefixes, plus an extensive IPv6 deployment (over 200 announced v6 prefixes) — unusually thorough dual-stack for the region.
• Vivacom is a converged fixed-and-mobile operator, but the evidence in this AS is fixed broadband: BRAS naming and static per-IP pools, not the APN and carrier-grade NAT naming a mobile core produces.

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

Announced prefixes

• 5.61.110.0/24
• 37.143.192.0/18
• 37.157.136.0/21
• 37.157.160.0/20
• 37.157.176.0/21
• 37.157.184.0/22
• 37.157.188.0/23
• 37.157.190.0/24
• 46.10.0.0/17
• 46.10.128.0/20
• 46.10.144.0/21
• 46.10.152.0/22
• 46.10.157.0/24
• 46.10.158.0/23
• 46.10.160.0/23
• 46.10.164.0/22
• 46.10.168.0/21
• 46.10.177.0/24
• 46.10.178.0/24
• 46.10.180.0/22
• 46.10.184.0/21
• 46.10.192.0/23
• 46.10.195.0/24
• 46.10.196.0/22
• 46.10.200.0/21
• 46.10.208.0/21
• 46.10.216.0/24
• 46.10.218.0/23
• 46.10.220.0/22
• 46.10.224.0/19
• 46.40.64.0/21
• 46.40.72.0/23
• 46.40.74.0/24
• 46.40.76.0/22
• 46.40.80.0/20
• 46.40.96.0/19
• 46.47.64.0/18
• 46.237.64.0/18
• 46.249.64.0/20
• 46.249.80.0/21
• 46.249.88.0/22
• 46.249.92.0/23
• 46.249.95.0/24
• 62.73.64.0/24
• 62.73.66.0/23
• 62.73.68.0/22
• 62.73.72.0/21
• 62.73.80.0/21
• 62.73.88.0/22
• 62.73.92.0/23
• 62.73.94.0/24
• 62.73.96.0/20
• 62.73.118.0/24
• 62.73.120.0/21
• 62.176.64.0/22
• 62.176.70.0/23
• 62.176.72.0/21
• 62.176.80.0/20
• 62.176.96.0/23
• 62.176.99.0/24
• 62.176.100.0/22
• 62.176.104.0/21
• 62.176.112.0/22
• 62.176.116.0/23
• 62.176.119.0/24
• 62.176.122.0/23
• 62.176.124.0/22
• 77.78.0.0/22
• 77.78.12.0/22
• 77.78.18.0/23
• 77.78.20.0/22
• 77.78.24.0/24
• 77.78.26.0/23
• 77.78.28.0/22
• 77.78.32.0/22
• 77.78.36.0/23
• 77.78.42.0/23
• 77.78.44.0/22
• 77.78.48.0/23
• 77.78.51.0/24
• 77.78.54.0/23
• 77.78.56.0/24
• 77.78.58.0/23
• 77.78.60.0/22
• 77.85.0.0/17
• 77.85.128.0/19
• 77.85.160.0/21
• 77.85.168.0/23
• 77.85.172.0/23
• 77.85.174.0/24
• 77.85.176.0/20
• 77.85.192.0/22
• 77.85.196.0/23
• 77.85.199.0/24
• 77.85.200.0/22
• 77.85.204.0/23
• 77.85.207.0/24
• 77.85.208.0/21
• 77.85.216.0/22
• 77.85.221.0/24

and 337 more.

Upstream networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS57463 NetIX Communications JSC
• AS9002 RETN Limited
• AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
• AS44901 Belcloud LTD
• AS34549 meerfarbig GmbH & Co. KG
• AS24482 SG.GS
• AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI
• AS48362 Stadtwerke Feldkirch
• AS50673 Serverius Holding B.V.
• AS401753 BIXCE Inc
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS48185 team.blue NV
• AS216285 MYIP NETWORKS G.P.
• AS49673 Truenetwork LLC
• AS37721 Virtual Technologies & Solutions
• AS3303 Swisscom (Schweiz) AG
• AS37100 SEACOM Limited
• AS56655 Gigahost AS
• AS206499 LOCIX LIMITED
• AS20766 Association "Gitoyen"
• AS12552 GlobalConnect AB

Downstream networks

• AS34295 Geo BG Net SPLtd.
• AS29084 Comnet Bulgaria Holding Ltd.
• AS39401 Link+ Ltd
• AS21415 Vivacom Bulgaria EAD
• AS34754 Vivacom Bulgaria EAD
• AS8795 Vivacom Bulgaria EAD
• AS51859 Mainstream doo Beograd
• AS13236 DATACOM LTD
• AS16344 Information Services PLC
• AS34569 Vivacom Bulgaria EAD
• AS43561 Vivacom Bulgaria EAD
• AS60560 VARNA Prof. Dr. Paraskev Stoyanov
• AS50013 Multicomp Ltd.
• AS197050 BORIANA-EOOD
• AS201384 Luxoft Professional Romania S.R.L.
• AS206804 EstNOC OU
• AS49850 International Fair Plovdiv AD
• AS29122 i-Wet Ltd.
• AS205132 Vivacom Bulgaria EAD
• AS39635 Mini Maritsa Iztok EAD
• AS51660 Suvorovo NET Ltd
• AS21433 Accenture UK Limited
• AS14789 Cloudflare, Inc.
• AS44718 Fraport Twin Star Airport Management AD
• AS50889 NVIDIA Ltd

Adjacent networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS57463 NetIX Communications JSC
• AS34295 Geo BG Net SPLtd.
• AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
• AS9002 RETN Limited
• AS44901 Belcloud LTD
• AS34549 meerfarbig GmbH & Co. KG
• AS50673 Serverius Holding B.V.
• AS24482 SG.GS
• AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI
• AS48362 Stadtwerke Feldkirch
• AS216285 MYIP NETWORKS G.P.
• AS401753 BIXCE Inc
• AS206499 LOCIX LIMITED
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS48185 team.blue NV
• AS49673 Truenetwork LLC
• AS56655 Gigahost AS
• AS37100 SEACOM Limited
• AS37721 Virtual Technologies & Solutions
• AS3303 Swisscom (Schweiz) AG
• AS12552 GlobalConnect AB

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• AMS-IX Amsterdam — Amsterdam, Netherlands
• NetIX — Sofia, Bulgaria
• NetIX Greece — Thessaloniki, Greece
• Bulgarian Internet eXchange — Sofia, Bulgaria
• Balkan Internet Exchange — Sofia, Bulgaria
• Greek Internet Exchange - Thessaloniki — Thessaloniki, Greece