asn.dev

Routing security

AS53820 CSUR

Unclassified ARIN

RPKI valid 100% 2 of 2 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 13 authorising this AS

Announcements

What this network originates

2 observed

Every prefix observed with AS53820 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
74.114.16.0/21RPKI validIRR51
165.140.172.0/22RPKI validIRR51

RPKI · ROAs

Route origin authorisations

13 ROAs

Signed statements by address holders that AS53820 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
23.134.32.0/24/24ARIN
23.178.0.0/24/24ARIN
23.178.1.0/24/24ARIN
23.252.224.0/20/20ARIN
74.114.16.0/21/21ARIN
165.140.172.0/22/22ARIN
199.4.190.0/24/24ARIN
204.101.73.0/24/24ARIN
204.101.75.0/24/24ARIN
204.101.78.0/24/24ARIN
204.101.84.0/24/24ARIN
2604:d040::/32/32ARIN
2606:7480::/32/32ARIN

ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.

RPKI · ASPA

Declared transit providers

6 declared

This network has signed an ASPA record naming its transit providers. Each is compared against the upstreams observed in routing paths.

ASNetworkASPARouting paths
AS174Cogent Communications, LLCDeclaredObserved
AS577Bell CanadaDeclarednot observed
AS22652Videotron LteeDeclarednot observed
AS46345LucioleDeclarednot observed
AS394232TelKel inc.Declarednot observed
AS396879airVitesseDeclarednot observed

An observed upstream that is not declared is not necessarily a leak: our upstream inference cannot tell a transit provider from a peer seen in the same position. A declared provider that is never observed is usually a backup path.

IRR

Registered route objects

14 objects · 10 not announced

Route objects naming AS53820 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
23.134.32.0/24ARINairVitesseMNT-LINUX-1052026-04-30Not announced
23.178.0.0/24ARINTelKel inc.MNT-TELKE2026-04-30Not announced
23.178.1.0/24ARINTelKel inc.MNT-TELKE2026-04-30Not announced
23.252.224.0/20ARINTelKel inc.MNT-TELKE2026-04-30Not announced
199.4.190.0/24ARINTelKel inc.MNT-TELKE2026-04-30Not announced
204.63.174.0/23RADBproxy route object for SAZZE by PACKETEXCHANGEMAINT-AS32572023-11-13Not announced
204.63.174.0/24NTTCOMProxy object for sazzeMAINT-NTTCOM-RA2015-05-14Not announced
204.63.175.0/24NTTCOMProxy object for sazzeMAINT-NTTCOM-RA2015-05-14Not announced
2604:d040::/32ARINairVitesseMNT-LINUX-1052026-04-30Not announced
2606:7480::/32ARINTelKel inc.MNT-TELKE2026-04-30Not announced
74.114.16.0/21ALTDBNET-CSUR-MAINMAINT-AS3968792026-02-04Announced
74.114.16.0/21ARINCoop de solidarite du Suroit-CSURMNT-CSS-2942026-04-30Announced
165.140.172.0/22ALTDBNET-CSUR-POINTEFORTUNEMAINT-AS3968792026-02-04Announced
165.140.172.0/22ARINCoop de solidarite du Suroit-CSURMNT-CSS-2942026-04-30Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS53820 directly show who expects to carry it.

AS-setWhereRelationship
AS-MZIMA-CUSTOMERSRADBLists AS53820 as a direct member
AS-TELKELALTDBLists AS53820 as a direct member
AS396879:AS-ALLALTDBLists AS53820 as a direct member
AS53820:AS-ALLALTDBLists AS53820 as a direct member

RPKI from rpki-client, validated 2026-10-16 12:09 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-16. Cross-check on bgp.he.net.