Autonomous system
AS8866 VIVACOM-AS BULGARIA
Residential RIPE
Summary
Vivacom Bulgaria
isp residential legacy
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 namedvar-bras-1and 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 undertelnet.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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 8 exchanges in 5 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.194.14 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.210.162 |
| NetIX | Sofia, Bulgaria | 185.1.226.218 |
| NetIX Greece | Thessaloniki, Greece | 185.0.28.44 |
| InterLAN-IX | Bucharest, Romania | 2001:7f8:64:225:0:5:7463:1 |
| Bulgarian Internet eXchange | Sofia, Bulgaria | 193.169.198.161 |
| Balkan Internet Exchange | Sofia, Bulgaria | 185.1.30.17 |
| Greek Internet Exchange - Thessaloniki | Thessaloniki, Greece | 185.1.123.9 |
Transit providers
39 upstream, 110 downstream and 181 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 581 prefixes · 1.02M addresses IPv6 66 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BG | Bulgaria | 647 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS8866- Registry name
- VIVACOM-AS
- Registrant
- BT95-ADM
- Abuse contact
- abuse-ip@vivacom.bg
- Registered
- 2002-07-01
- Last changed
- 2026-04-11
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1,218 valid, 0 with no ROA
- ROAs
- 205 authorising AS8866
- ASPA
- no ASPA record
- IRR
- 100% registered · 1,218 of 1,218 announcements
- Route objects
- 1,417 naming AS8866
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,775 prefixes, as published 2026-10-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere