$ query “AS43561” --type=asn → 1 result(s)
AS43561 — NET1-AS
Vivacom Bulgaria EAD
AS43561 is a mid-size transit provider operated by Vivacom Bulgaria EAD, established in Bulgaria in 2007. The network announces 768 IPv4 addresses. Supports IPv6.
Basic Information
- Country
- 🇧🇬 Bulgaria
- Category
- Internet Service Provider
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- August 23, 2007
- Last Changed
- March 04, 2026
- Last Seen
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 3 / 3
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 768
- Largest IPv4 Prefix
- /24 (256 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇧🇬 BG (3 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 768 total (0.00%)
Connectivity Summary
- Upstream Providers
- 1 upstream autonomous systems providing transit
- Peers
- 1 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 10 downstream autonomous systems buying transit
- Degree
- 12 unique BGP neighbors (providers + customers + peers)
- Reach
- 10 — customer cone size measuring network influence
- Degree Rank
- #9 756
- Reach Rank
- #3 187
Upstream Providers (1)
- AS8866 — VIVACOM-AS
Prefix Lists
IPv4 Prefixes (3 total)
- 37.157.191.0/24 (256 addresses)
- 95.87.209.0/24 (256 addresses)
- 95.87.255.0/24 (256 addresses)
IPv6 Prefixes (1 total)
- 2a02:1338::/32