$ query “AS216129” --type=asn → 1 result(s)

AS216129 · GUARDNETWORK-AS

SEBEK sp. z o.o

AS216129 is run by SEBEK sp. z o.o and is a residential access provider, based in Poland since 2023. The system announces 5 632 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in Germany, with additional presence in Poland and the United States, and smaller footprints in 4 additional countries.

Basic Information

Country
🇵🇱 Poland
Category
Internet Service Provider
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
October 18, 2023
Last Changed
March 04, 2026
Last Seen
July 25, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
22 / 15
IPv6 Prefixes (raw / aggregated)
8 / 3
IPv4 Addresses
5 632
Largest IPv4 Prefix
/21 (2 048 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇩🇪 Germany (5 120 IPs), 🇵🇱 Poland (3 840 IPs), 🇫🇮 Finland (512 IPs) and 4 more
Prefix Changed
July 01, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
5 upstreams providing transit
Downstream Customers
1 downstream buying transit
Unclassified
3 unclassified BGP neighbors
Degree
9 unique BGP neighbors
Reach
1 network in customer cone

Upstream Providers (5)

Prefix Lists

IPv4 Prefixes (22 total)

  • 148.253.208.0/21 (2 048 addresses (/21 prefix))
  • 31.57.117.0/24 (256 addresses (/24 prefix))
  • 143.20.155.0/24 (256 addresses (/24 prefix))
  • 2.27.253.0/24 (256 addresses (/24 prefix))
  • 31.58.85.0/24 (256 addresses (/24 prefix))
  • 31.77.241.0/24 (256 addresses (/24 prefix))
  • 104.234.24.0/24 (256 addresses (/24 prefix))
  • 107.161.154.0/24 (256 addresses (/24 prefix))
  • 31.57.13.0/24 (256 addresses (/24 prefix))
  • 31.56.180.0/24 (256 addresses (/24 prefix))
  • 185.28.84.0/24 (256 addresses (/24 prefix))
  • 188.220.148.0/24 (256 addresses (/24 prefix))
  • 188.220.205.0/24 (256 addresses (/24 prefix))
  • 199.83.103.0/24 (256 addresses (/24 prefix))
  • 202.181.188.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (8 total)

  • 2a13:d200::/32
  • 2a13:d201::/46
  • 2a13:d201:6::/47