$ query “AS42157” --type=asn → 1 result(s)
AS42157 — A1BG
A1 Bulgaria EAD
AS42157 is a stub network registered to A1 Bulgaria EAD, registered in Bulgaria since 2006. The network announces 512 IPv4 addresses. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇧🇬 Bulgaria
- Category
- Internet Service Provider
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- December 29, 2006
- Last Changed
- March 04, 2026
- Last Seen
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 1 / 1
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 512
- Largest IPv4 Prefix
- /23 (512 addresses)
- Geolocated Countries
- 🇧🇬 BG (1 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 512 total (0.00%)
Connectivity Summary
- Upstream Providers
- 1 upstream autonomous systems providing transit
- Peers
- 0 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 0 downstream autonomous systems buying transit
- Degree
- 1 unique BGP neighbors (providers + customers + peers)
- Reach
- 0 — customer cone size measuring network influence
- Degree Rank
- #59 886
Upstream Providers (1)
- AS8717 — A1BG
Prefix Lists
IPv4 Prefixes (1 total)
- 151.251.64.0/23 (512 addresses)