AS20545 — GRENA-AS Tbilisi, Georgia

AS20545 announces 4 IPv4 prefixes covering 6,400 addresses and 1 IPv6 prefixes.

About this network

GRENA-AS is operated by Georgian Research and Educational Networking Association (GRENA).

What it's used for

• The address space carries research and educational network traffic, as indicated by the registrant name and netnames such as GE-GRENA-20010302 and TSU-Addresses.
• The AS announces 6,400 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, with 6 observed neighbours, suggesting a role as a national research and education network (NREN) providing connectivity to academic institutions.

Notable

• All registrants for the announced prefixes are listed as the Georgian Research and Educational Networking Association (GRENA), consistent with the AS holder.
• The address inventory includes a large /20 block (217.147.224.0/20) alongside smaller /22 and /24 blocks, reflecting a mix of legacy and newer allocations for the national research network.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 109.205.40.0/22
• 109.205.44.0/24
• 185.212.252.0/22
• 217.147.224.0/20
• 2a13:3b00::/29

Upstream networks

• AS174 Cogent Communications, LLC
• AS20965 GEANT Vereniging
• AS35805 JSC "Silknet"

Downstream networks

• AS47575 Ivane Javakhishvili Tbilisi State University
• AS29289 Georgian Technical University
• AS47810 Proservice LLC

Adjacent networks

• AS174 Cogent Communications, LLC
• AS20965 GEANT Vereniging
• AS47575 Ivane Javakhishvili Tbilisi State University
• AS29289 Georgian Technical University
• AS35805 JSC "Silknet"
• AS47810 Proservice LLC

Internet exchanges

• Internet Exchange Association of Georgia-Kutaisi — Kutaisi, Georgia
• Internet Exchange Association of Georgia-Tbilisi — Tbilisi, Georgia