asn.dev

Routing security

AS31221 NLT-

Unclassified RIPE NSP

RPKI valid 11% 1 of 9 announcements
RPKI invalid 0 none
No ROA 8 not covered by any ROA
IRR registered 89% 1 missing · 0 other origin
ROAs 4 authorising this AS

Announcements

What this network originates

9 observed

Every prefix observed with AS31221 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
193.135.126.0/24No ROANo IRR52
2a02:6f0::/32No ROAIRR34
5.252.56.0/22No ROAIRR52
5.252.57.0/24No ROAIRR covering54
185.43.36.0/22No ROAIRR54
217.13.48.0/20No ROAIRR54
217.13.48.0/24No ROAIRR covering54
217.13.63.0/24No ROAIRR54
193.218.120.0/24RPKI validIRR54

RPKI · ROAs

Route origin authorisations

4 ROAs

Signed statements by address holders that AS31221 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
144.56.28.0/24/24RIPENCC
163.5.22.0/24/24RIPENCC
185.145.77.0/24/24RIPENCC
193.218.120.0/24/24RIPENCC

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

14 objects · 8 not announced

Route objects naming AS31221 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.

PrefixSourceDescriptionMaintainerChangedRouting
144.56.28.0/24RADBautogenMAINT-AS8342025-04-26Not announced
144.56.28.0/24RIPE—NETUTILS-MNT2025-04-25Not announced
163.5.22.0/24RADBautogenMAINT-AS8342025-03-21Not announced
163.5.22.0/24RIPE—NETUTILS-MNT2025-03-20Not announced
185.43.38.0/24RIPE—EUCLYDE-MNT2021-04-19Not announced
185.145.77.0/24RIPE—BALLYFR-MNT2022-07-20Not announced
217.13.48.0/21RIPEEuclyde HostingEUCLYDE-MNT2010-01-06Not announced
217.13.56.0/22RIPEEuclyde HostingEUCLYDE-MNT2010-01-06Not announced
5.252.56.0/22RIPE—EUCLYDE-MNT2024-03-05Announced
185.43.36.0/22RIPEEuclyde HostingEUCLYDE-MNT2015-04-03Announced
193.218.120.0/24RIPE—LIR-FR-ICSSA-1-MNT2021-06-15Announced
217.13.48.0/20RIPEEuclyde HostingEUCLYDE-MNT2013-02-13Announced
217.13.63.0/24RIPE—EUCLYDE-MNT2016-07-05Announced
2a02:6f0::/32RIPE—EUCLYDE-MNT2024-03-05Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS31221 directly show who expects to carry it.

AS-setWhereRelationship
AS-EUCLYDEPeeringDBDeclared by the operator as its own set
AS-CHMURTZ-SXBRIPELists AS31221 as a direct member
AS-EUCLYDERIPELists AS31221 as a direct member
AS-HURRICANEV6RADBLists AS31221 as a direct member
AS-KASTRIPELists AS31221 as a direct member
AS-LUXNETWORKRIPELists AS31221 as a direct member
AS-TRANSROUTE-SPECRIPELists AS31221 as a direct member
AS29075:AS-CUSTOMERSRIPELists AS31221 as a direct member
AS51664:AS-BILENDIRIPELists AS31221 as a direct member
AS8218:AS-CUSTOMERSRIPELists AS31221 as a direct member
AS8218:AS-FR-CUSTOMERSRIPELists AS31221 as a direct member

RPKI from rpki-client, validated 2026-10-12 12:10 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-12. Cross-check on bgp.he.net.