All ASNs

Autonomous System details for AS39563

AS39563
CTA Systems B.V. • ucsystems.nl

AS39563 — CTA Systems B.V.

AS Name
UCSYSTEMS
Country
The Netherlands (NL)
Website
Number of IPv4
2,304
Number of IPv6
7.92 × 1028
ASN type
ISP
Status
Allocated
Registry
RIPE
Allocated
November 10, 2017
Last updated
June 25, 2021

IP Ranges

9 IPv4 prefixes, 1 IPv6 prefixes
Prefix Company Number of IPs
85.8.131.0/24 CTA Systems B.V. 256
185.80.8.0/24 CTA Systems B.V. 256
185.80.9.0/24 UC Systems COLO 256
185.80.10.0/24 UC Systems COLO 256
185.80.11.0/24 UC Systems COLO 256
185.231.16.0/24 CTA Systems B.V. 256
185.231.17.0/24 UC Systems COLO 256
185.231.18.0/24 UC Systems COLO 256
185.231.19.0/24 UC Systems COLO 256
2a0c:3900::/32 CTA Systems B.V. 7.92 × 1028

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Upstreams of AS39563

6 upstreams

AS39563 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS39563 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS39563

1 downstreams

AS39563 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.

Our IP address tools

Explore all tools

What is my IP?

Discover your public IP address and detailed information about your connection.

CIDR to IP Range Converter (IPv4 and IPv6)

Convert CIDR notation to IP address ranges and vice versa. Useful for network configuration and security.

IP to Hostname/rDNS Lookup

Perform a reverse DNS (rDNS) lookup to get the hostname for an IP address.

IPv6 Expander/Collapser

Expand or collapse IPv6 addresses to their full or shortened forms for better readability and usage.