Autonomous system
AS20545 GRENA-AS Tbilisi, Georgia
Unclassified RIPE
Summary
GRENA
education research nren georgia
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-20010302andTSU-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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Internet Exchange Association of Georgia-Kutaisi | Kutaisi, Georgia | 185.1.224.12 |
| Internet Exchange Association of Georgia-Tbilisi | Tbilisi, Georgia | 185.1.224.12 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 6.40K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GE | Georgia | 5 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS20545- Registry name
- GRENA-AS
- Registrant
- GRENA-MNT
- Abuse contact
- contact@grena.ge
- Registered
- 2002-04-19
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 22 valid, 0 with no ROA
- ROAs
- 4 authorising AS20545
- ASPA
- no ASPA record
- IRR
- 95% registered · 21 of 22 announcements
- Route objects
- 24 naming AS20545
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere