$ query “AS20657” --type=asn → 1 result(s)
AS20657 · ATLANTIS
ATLANTIS BG Ltd.
AS20657 belongs to ATLANTIS BG Ltd. and is a residential access provider, based in Bulgaria. The system announces 4 096 IPv4 addresses. Most of its address space is geolocated to Bulgaria. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇧🇬 Bulgaria
- Category
- Internet Service Provider
- Network Role
- Access Provider
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- October 03, 2026
- Last Seen
- October 23, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 11 / 6
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 4 096
- Largest IPv4 Prefix
- /21 (2 048 addresses)
- Geolocated Countries
- 🇧🇬 Bulgaria (4 096 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 4 upstreams providing transit
- Peers
- 2 networks exchanging traffic without transit
- Downstream Customers
- 4 downstreams buying transit
- Degree
- 10 unique BGP neighbors
- Reach
- 4 networks in customer cone
Upstream Providers (4)
Prefix Lists
IPv4 Prefixes (11 total)
- 88.80.152.0/21 (2 048 addresses (/21 prefix))
- 88.80.132.0/23 (512 addresses (/23 prefix))
- 194.79.12.0/23 (512 addresses (/23 prefix))
- 195.68.214.0/23 (512 addresses (/23 prefix))
- 88.80.131.0/24 (256 addresses (/24 prefix))
- 193.108.24.0/24 (256 addresses (/24 prefix))