All ASNs

Autonomous System details for AS21437

AS21437
Aviti ltd. • aviti.net

AS21437 — Aviti ltd.

AS Name
AVITI-AS
Country
Ukraine (UA)
Website
Number of IPv4
2,560
Number of IPv6
0
ASN type
Business
Status
Allocated
Registry
RIPE
Allocated
December 10, 2001
Last updated
June 12, 2025

IP Ranges

10 IPv4 prefixes
Prefix Company Number of IPs
81.17.128.0/24 SI D ENERGIE ET DE E-COMMUNICATION DE L AIN SIVU 256
81.17.131.0/24 Qwerty Solutions SRL 256
81.17.132.0/24 Qwerty Solutions SRL 256
81.17.133.0/24 Qwerty Solutions SRL 256
81.17.134.0/24 Qwerty Solutions SRL 256
81.17.135.0/24 Qwerty Solutions SRL 256
81.17.136.0/24 SI D ENERGIE ET DE E-COMMUNICATION DE L AIN SIVU 256
81.17.138.0/24 Qwerty Solutions SRL 256
81.17.139.0/24 Qwerty Solutions SRL 256
193.104.133.0/24 Ovid Technologies 256

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.

Peers of AS21437

0 peers

AS21437 has no peers recorded.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS21437

1 upstreams

AS21437 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS21437 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS21437

0 downstreams

AS21437 has no downstreams recorded.

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.