asn.dev

Routing security

AS21903 ARNHEM-01

Unclassified ARIN

RPKI valid 100% 9 of 9 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 12 authorising this AS

Announcements

What this network originates

9 observed

Every prefix observed with AS21903 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
23.183.104.0/24RPKI validIRR56
2602:fa6d:40::/43RPKI validIRR33
2602:fa6d:60::/46RPKI validIRR29
2602:fa6d:64::/47RPKI validIRR30
2602:fa6d:70::/46RPKI validIRR30
2602:fa6d:78::/47RPKI validIRR30
2602:fa6d:80::/46RPKI validIRR34
2602:fa6d:200::/47RPKI validIRR30
2602:fa6d:abc::/48RPKI validIRR30

RPKI · ROAs

Route origin authorisations

12 ROAs

Signed statements by address holders that AS21903 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
23.183.104.0/24/24ARIN
2001:470:da::/48/48ARIN
2602:fa6d:40::/43/43ARIN
2602:fa6d:60::/46/46ARIN
2602:fa6d:64::/47/47ARIN
2602:fa6d:70::/46/46ARIN
2602:fa6d:74::/46/46ARIN
2602:fa6d:78::/47/47ARIN
2602:fa6d:80::/46/46ARIN
2602:fa6d:200::/47/47ARIN
2602:fa6d:941::/48/48ARIN
2602:fa6d:abc::/48/48ARIN

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 · 4 not announced

Route objects naming AS21903 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
2001:470:da::/48ARINNET-2001-470-da---48-AS21903MNT-HURC2024-05-07Not announced
2602:fa6d:74::/46ARINSeattle, WA SEA01 Allocation #2MNT-ANL-3572024-03-05Not announced
2602:fa6d:300::/48ARINPrefix delegated to devhackMNT-ANL-3572024-03-06Not announced
2602:fa6d:941::/48ARINZRH01MNT-ANL-3572025-01-31Not announced
23.183.104.0/24ARINARNHEM-4NETMNT-ANL-3572024-07-05Announced
2602:fa6d:40::/43ARINDallas, TX AllocationMNT-ANL-3572024-03-05Announced
2602:fa6d:60::/46ARINSeattle, WA SEA02 AllocationMNT-ANL-3572024-03-05Announced
2602:fa6d:64::/47ARINSEA03 AllocationMNT-ANL-3572024-03-20Announced
2602:fa6d:64::/47RADBVultr Customer RouteMAINT-AS204732026-09-26Announced
2602:fa6d:70::/46ARINSeattle, WA SEA01 Allocation #1MNT-ANL-3572024-03-05Announced
2602:fa6d:78::/47ARINSeattle, WA SEA01 AnycastMNT-ANL-3572024-03-05Announced
2602:fa6d:80::/46ARINFremont AllocationMNT-ANL-3572024-06-23Announced
2602:fa6d:200::/47ARINGlobal Anycast AllocationMNT-ANL-3572024-03-05Announced
2602:fa6d:abc::/48ARINprefix for services used at DMAMNT-ANL-3572026-02-02Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS21903 directly show who expects to carry it.

AS-setWhereRelationship
AS21903:AS-DOWNSTREAMSPeeringDBDeclared by the operator as its own set
AS-COFRACTALARINLists AS21903 as a direct member
AS-FOGIXPRIPELists AS21903 as a direct member
AS-FREMIXARINLists AS21903 as a direct member
AS-HURRICANERADBLists AS21903 as a direct member
AS-HURRICANEV6RADBLists AS21903 as a direct member
AS-IFOGALTDBLists AS21903 as a direct member
AS-IFOGRIPELists AS21903 as a direct member
AS-MISAKA-CUSTOMERS2RIPELists AS21903 as a direct member
AS-NEXRILARINLists AS21903 as a direct member
AS-TRANSROUTE-SPECRIPELists AS21903 as a direct member
AS13830:AS-PUREVOLTAGERADBLists AS21903 as a direct member
AS20473:AS-VULTRRADBLists AS21903 as a direct member
AS21903:AS-DOWNSTREAMSARINLists AS21903 as a direct member
AS21903:AS-FMT2ARINLists AS21903 as a direct member
AS33495:AS-MEMBERSALTDBLists AS21903 as a direct member
AS60438:AS-FREMIXRIPELists AS21903 as a direct member
AS917:AS-CUSTOMERSARINLists AS21903 as a direct member
AS917:AS-CUSTOMERS-LARGEARINLists AS21903 as a direct member

RPKI from rpki-client, validated 2026-10-15 12:09 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-15. Cross-check on bgp.he.net.