asn.dev

Routing security

AS21947 BCI

Hosting APNIC

RPKI valid 88% 15 of 17 announcements
RPKI invalid 0 none
No ROA 2 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 15 authorising this AS

Announcements

What this network originates

17 observed

Every prefix observed with AS21947 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
198.60.195.0/24No ROAIRR52
205.167.162.0/23No ROAIRR52
64.25.128.0/20RPKI validIRR53
66.109.128.0/19RPKI validIRR53
69.51.64.0/18RPKI validIRR53
69.165.112.0/20RPKI validIRR53
192.150.152.0/21RPKI validIRR52
192.225.176.0/20RPKI validIRR52
199.195.120.0/21RPKI validIRR53
204.11.244.0/22RPKI validIRR52
209.137.224.0/19RPKI validIRR53
209.200.192.0/19RPKI validIRR53
216.14.224.0/19RPKI validIRR53
216.47.48.0/20RPKI validIRR53
2001:1940::/32RPKI validIRR33
2604:300::/32RPKI validIRR33
2607:f8e0::/32RPKI validIRR33

RPKI · ROAs

Route origin authorisations

15 ROAs

Signed statements by address holders that AS21947 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
64.25.128.0/20/20ARIN
66.109.128.0/19/19ARIN
69.51.64.0/18/18ARIN
69.165.112.0/20/20ARIN
192.150.152.0/21/21ARIN
192.225.176.0/20/20ARIN
199.195.120.0/21/21ARIN
204.11.244.0/22/22ARIN
209.137.224.0/19/19ARIN
209.200.192.0/19/19ARIN
216.14.224.0/19/19ARIN
216.47.48.0/20/20ARIN
2001:1940::/32/32ARIN
2604:300::/32/32ARIN
2607:f8e0::/32/32ARIN

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

34 objects · 2 not announced

Route objects naming AS21947 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
23.129.0.0/24RADBProxy object for Marcus Daly Memorial Hospital Corp. via Blackfoot CommunicationsMAINT-AS153052023-11-13Not announced
170.173.16.0/22RADBProxy object for Blackfoot CommunicationsMAINT-AS153052023-11-13Not announced
64.25.128.0/20ARINBlackfoot CommunicationsMNT-BTC-132025-03-25Announced
64.25.128.0/20RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
66.109.128.0/19ARINBlackfoot CommunicationsMNT-BTC-132025-03-26Announced
66.109.128.0/19RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
69.51.64.0/18ARINBlackfoot CommunicationsMNT-BTC-132025-03-26Announced
69.51.64.0/18RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
69.165.112.0/20ARINBlackfoot CommunicationsMNT-BTC-132025-03-25Announced
69.165.112.0/20RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
192.150.152.0/21ARINBlackfoot CommunicationsMNT-BTC-132025-03-26Announced
192.150.152.0/21RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
192.225.176.0/20ARINBlackfoot CommunicationsMNT-BTC-132025-03-26Announced
192.225.176.0/20RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
198.60.195.0/24RADBMadison School DistrictMAINT-AS219472023-11-13Announced
199.195.120.0/21ARINBlackfoot CommunicationsMNT-BTC-132025-03-26Announced
199.195.120.0/21RADBModwest, Inc.MAINT-AS219472023-11-13Announced
204.11.244.0/22ARINBlackfoot CommunicationsMNT-BTC-132025-03-25Announced
204.11.244.0/22RADBModwest, Inc.MAINT-AS219472025-02-26Announced
205.167.162.0/23RADBBlackfoot Communications - Hellgate SchoolMAINT-AS219472023-11-13Announced
209.137.224.0/19ARINBlackfoot CommunicationsMNT-BTC-132025-03-26Announced
209.137.224.0/19RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
209.200.192.0/19ARINBlackfoot CommunicationsMNT-BTC-132025-03-25Announced
209.200.192.0/19RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
216.14.224.0/19ARINBlackfoot CommunicationsMNT-BTC-132025-03-26Announced
216.14.224.0/19RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
216.47.48.0/20ARINBlackfoot CommunicationsMNT-BTC-132025-03-26Announced
216.47.48.0/20RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
2001:1940::/32ARINBlackfoot CommunicationsMNT-BTC-132025-03-24Announced
2001:1940::/32RADBBlackfootMAINT-AS219472025-02-26Announced
2604:300::/32ARINBlackfoot CommunicationsMNT-BTC-132025-03-24Announced
2604:300::/32RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced
2607:f8e0::/32ARINBlackfoot DatacenterMNT-BTC-132025-03-24Announced
2607:f8e0::/32RADBBlackfoot CommunicationsMAINT-AS219472025-02-26Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS21947 directly show who expects to carry it.

AS-setWhereRelationship
AS-BLACKFOOTARINLists AS21947 as a direct member
AS-BLACKFOOTRADBLists AS21947 as a direct member
AS-GBLXRIPELists AS21947 as a direct member
AS-HURRICANEV6RADBLists AS21947 as a direct member
AS-SYRINGACUSTOMERSRADBLists AS21947 as a direct member
AS-TRANSARIARADBLists AS21947 as a direct member
AS-TRANSARIA-V6RADBLists AS21947 as a direct member
AS3742:AS-PALTDBLists AS21947 as a direct member
AS7575:AS-PEERRADBLists AS21947 as a direct member

RPKI from rpki-client, validated 2026-10-13 12:16 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-13. Cross-check on bgp.he.net.