Routing security
AS20545 GRENA-AS Tbilisi, Georgia
Unclassified RIPE
Announcements
What this network originates
Every prefix observed with AS20545 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2a13:3b00::/29 | RPKI valid | No IRR | 30 |
| 109.205.40.0/22 | RPKI valid | IRR | 54 |
| 109.205.44.0/24 | RPKI valid | IRR covering | 51 |
| 185.212.252.0/22 | RPKI valid | IRR | 54 |
| 217.147.224.0/20 | RPKI valid | IRR | 7 |
| 217.147.224.0/24 | RPKI valid | IRR | 51 |
| 217.147.225.0/24 | RPKI valid | IRR | 54 |
| 217.147.226.0/24 | RPKI valid | IRR | 54 |
| 217.147.227.0/24 | RPKI valid | IRR | 54 |
| 217.147.228.0/24 | RPKI valid | IRR covering | 54 |
| 217.147.229.0/24 | RPKI valid | IRR | 54 |
| 217.147.230.0/23 | RPKI valid | IRR | 51 |
| 217.147.230.0/24 | RPKI valid | IRR | 54 |
| 217.147.231.0/24 | RPKI valid | IRR | 54 |
| 217.147.232.0/24 | RPKI valid | IRR | 54 |
| 217.147.233.0/24 | RPKI valid | IRR | 54 |
| 217.147.234.0/24 | RPKI valid | IRR | 55 |
| 217.147.235.0/24 | RPKI valid | IRR | 54 |
| 217.147.236.0/24 | RPKI valid | IRR | 54 |
| 217.147.237.0/24 | RPKI valid | IRR | 54 |
| 217.147.238.0/24 | RPKI valid | IRR | 54 |
| 217.147.239.0/24 | RPKI valid | IRR | 54 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS20545 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 109.205.40.0/21 | /24 | RIPENCC |
| 185.212.252.0/22 | /22 | RIPENCC |
| 217.147.224.0/20 | /24 | RIPENCC |
| 2a13:3b00::/29 | /29 | RIPENCC |
ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.
RPKI · ASPA
Declared transit providers
No ASPA record This network has not published an ASPA object. ASPA lets a network sign the list of its transit providers, so routers can reject paths that route through anyone else (route leaks). Only a few thousand networks publish one so far, so its absence is normal.
IRR
Registered route objects
Route objects naming AS20545 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.
| Prefix | Source | Description | Maintainer | Changed | Routing |
|---|---|---|---|---|---|
| 109.205.40.0/21 | RIPE | Georgian Research and Educational Networking Association | GRENA-MNT | 2010-04-08 | Not announced |
| 109.205.40.0/24 | RIPE | Georgian Research and Educational Networking Association | GRENA-MNT | 2010-05-21 | Not announced |
| 109.205.41.0/24 | RIPE | Ministry of Education and Science of Georgia | GRENA-MNT | 2010-05-21 | Not announced |
| 217.147.228.0/23 | RIPE | ACNET | GRENA-MNT | 2001-09-22 | Not announced |
| 217.147.232.0/23 | RIPE | Georgian Technical University | GRENA-MNT | 2001-09-22 | Not announced |
| 109.205.40.0/22 | RIPE | Georgian Research and Educational Networking Association | GRENA-MNT | 2015-09-21 | Announced |
| 185.212.252.0/22 | RIPE | Georgian Research and Educational Networking Association | GRENA-MNT | 2017-07-14 | Announced |
| 217.147.224.0/20 | RIPE | Georgian Research and Educational Networking Association, GRENA | GRENA-MNT | 2011-08-08 | Announced |
| 217.147.224.0/24 | RIPE | GRENA Network Backbone | GRENA-MNT | 2002-08-21 | Announced |
| 217.147.225.0/24 | RIPE | GRENA Radio Network | GRENA-MNT | 2001-09-22 | Announced |
| 217.147.226.0/24 | RIPE | High Energy Physics Institute | GRENA-MNT | 2001-09-22 | Announced |
| 217.147.227.0/24 | RIPE | Open Society Georgia Foundation | GRENA-MNT | 2001-09-22 | Announced |
| 217.147.229.0/24 | RIPE | Georgian Research and Educational Networking Association | GRENA-MNT | 2016-04-01 | Announced |
| 217.147.230.0/23 | RIPE | GRENA Servers | GRENA-MNT | 2022-04-21 | Announced |
| 217.147.230.0/24 | RIPE | GRENA Servers | GRENA-MNT | 2022-04-21 | Announced |
| 217.147.231.0/24 | RIPE | Tbilisi State University | GRENA-MNT | 2009-03-12 | Announced |
| 217.147.232.0/24 | RIPE | Georgian Technical University Network | GRENA-MNT | 2009-03-12 | Announced |
| 217.147.233.0/24 | RIPE | Georgian Technical University Network | GRENA-MNT | 2009-03-12 | Announced |
| 217.147.234.0/24 | RIPE | Tbilisi Pedagogical Institute | GRENA-MNT | 2001-09-22 | Announced |
| 217.147.235.0/24 | RIPE | GRENA Customers | GRENA-MNT | 2003-03-19 | Announced |
| 217.147.236.0/24 | RIPE | IREX Georgia | GRENA-MNT | 2002-08-21 | Announced |
| 217.147.237.0/24 | RIPE | GRENA BACKBOUNE NETWORK | GRENA-MNT | 2009-03-12 | Announced |
| 217.147.238.0/24 | RIPE | GRENA Tbilisi ADSL Customers | GRENA-MNT | 2009-03-12 | Announced |
| 217.147.239.0/24 | RIPE | Georgian Research and Educational Networking Association, GRENA | GRENA-MNT | 2007-10-01 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS20545 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-AZERSATMEMBERS | RIPE | Lists AS20545 as a direct member |
AS-BGP_PEERS | RIPE | Lists AS20545 as a direct member |
AS-DELTA | RIPE | Lists AS20545 as a direct member |
AS-DELTA2 | RIPE | Lists AS20545 as a direct member |
AS-GRENA-BGP-PEERS | RIPE | Lists AS20545 as a direct member |
AS-GRENA-GEANT | RIPE | Lists AS20545 as a direct member |
AS-GRENA-TELENET | RIPE | Lists AS20545 as a direct member |
AS-GRT2 | RIPE | Lists AS20545 as a direct member |
AS-GRT4 | RIPE | Lists AS20545 as a direct member |
AS-MAGTICOM | RIPE | Lists AS20545 as a direct member |
AS-RADIOMSUTODESY | RIPE | Lists AS20545 as a direct member |
AS-SET-MAGTI | RIPE | Lists AS20545 as a direct member |
AS-SET-SILKNET-LOCAL | RIPE | Lists AS20545 as a direct member |
AS-SET-UTG | RIPE | Lists AS20545 as a direct member |
AS-SMS | RIPE | Lists AS20545 as a direct member |
AS-T-NET | RIPE | Lists AS20545 as a direct member |
AS-VOXILITY-SET | APNIC | Lists AS20545 as a direct member |
AS-VOXILITY-SET | RADB | Lists AS20545 as a direct member |
AS-VOXILITY-SET | RIPE | Lists AS20545 as a direct member |
RPKI from rpki-client, validated 2026-10-14 18:17 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-14. Cross-check on bgp.he.net.