$ query “AS39563” --type=asn → 1 result(s)

AS39563 — UCSYSTEMS

CTA Systems B.V.

AS39563 is a hosting access provider operated by CTA Systems B.V., registered in the Netherlands since 2017. The network announces 2 304 IPv4 addresses. Supports IPv6.

Basic Information

Country
🇳🇱 Netherlands
Category
Hosting
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
November 10, 2017
Last Changed
March 04, 2026
Last Seen
March 05, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
9 / 3
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
2 304
Largest IPv4 Prefix
/22 (1 024 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇳🇱 NL (5 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Pristine — 0 flagged IPs out of 2 304 total (0.00%)

Connectivity Summary

Upstream Providers
3 upstream autonomous systems providing transit
Peers
101 autonomous systems exchanging traffic without transit fees
Downstream Customers
1 downstream autonomous systems buying transit
Degree
107 unique BGP neighbors (providers + customers + peers)
Reach
1 — customer cone size measuring network influence
Degree Rank
#1 401
Reach Rank
#9 235

Upstream Providers (3)

Prefix Lists

IPv4 Prefixes (9 total)

  • 185.80.8.0/22 (1 024 addresses)
  • 185.231.16.0/22 (1 024 addresses)
  • 85.8.131.0/24 (256 addresses)

IPv6 Prefixes (1 total)

  • 2a0c:3900::/32