$ query “AS57823” --type=asn → 1 result(s)
AS57823 — ASKKNET
Libor Kotoucek
AS57823 is an enterprise stub network operated by Libor Kotoucek, based in Czechia since 2012. The network announces 2 048 IPv4 addresses. Supports IPv6.
Basic Information
- Country
- 🇨🇿 Czechia
- Category
- Business
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- February 16, 2012
- Last Changed
- March 04, 2026
- Last Seen
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 1 / 1
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 2 048
- Largest IPv4 Prefix
- /21 (2 048 addresses)
- Largest IPv6 Prefix
- /48
- Geolocated Countries
- 🇨🇿 CZ (2 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 2 048 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
- #63 487
Upstream Providers (1)
- AS16019 — VODAFONE-CZ-AS
Prefix Lists
IPv4 Prefixes (1 total)
- 176.107.120.0/21 (2 048 addresses)
IPv6 Prefixes (1 total)
- 2001:67c:2710::/48