asn.dev

Routing security

AS263789 CORTUC S.A.

Residential APNIC Cable/DSL/ISP

RPKI valid 100% 6 of 6 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 2 authorising this AS

Announcements

What this network originates

6 observed

Every prefix observed with AS263789 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
138.121.84.0/22RPKI validIRR52
138.121.84.0/24RPKI validIRR13
138.121.85.0/24RPKI validIRR13
138.121.86.0/24RPKI validIRR13
138.121.87.0/24RPKI validIRR13
2803:8c40::/32RPKI validIRR29

RPKI · ROAs

Route origin authorisations

2 ROAs

Signed statements by address holders that AS263789 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
138.121.84.0/22/24LACNIC
2803:8c40::/32/32LACNIC

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

10 objects · 1 not announced

Route objects naming AS263789 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
131.121.84.0/22ALTDBCortucMAINT-AS279882024-05-17Not announced
138.121.84.0/22ALTDBCortucMAINT-AS279882024-05-17Announced
138.121.84.0/22LACNICLACNIC generated route for CORTUC S.A.MNT-AR-COSA91-LACNIC2025-04-26Announced
138.121.84.0/22RADBThis route object is for IFX Networks customer route which is being exported under this origin AS 263789MAINT-AS187472026-01-19Announced
138.121.84.0/24RADBThis route object is for IFX Networks customer route which is being exported under this origin AS 263789MAINT-AS187472026-01-19Announced
138.121.85.0/24RADBThis route object is for IFX Networks customer route which is being exported under this origin AS 263789MAINT-AS187472026-01-19Announced
138.121.86.0/24RADBThis route object is for IFX Networks customer route which is being exported under this origin AS 263789MAINT-AS187472026-01-19Announced
138.121.87.0/24RADBThis route object is for IFX Networks customer route which is being exported under this origin AS 263789MAINT-AS187472026-01-19Announced
2803:8c40::/32LACNICLACNIC generated route6 for CORTUC S.A.MNT-AR-COSA91-LACNIC2025-04-26Announced
2803:8c40::/32RADBCORTUC S.A.MAINT-AS279882025-12-26Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS263789 directly show who expects to carry it.

AS-setWhereRelationship
AS263789:AS-CLIENTESPeeringDBDeclared by the operator as its own set
AS-ANTEL-ALLRADBLists AS263789 as a direct member
AS-CTBC-TOOLS-11RADBLists AS263789 as a direct member
AS-DURAND1-CUSTOMERRADBLists AS263789 as a direct member
AS-E1-AUTOMATION-CUSTOMERRADBLists AS263789 as a direct member
AS-EMBRATELNETRADBLists AS263789 as a direct member
AS-GNT-CUSTOMERSRADBLists AS263789 as a direct member
AS-SILICA-AR-CUSTOMERSRADBLists AS263789 as a direct member
AS-UFLA-TRANSCUSTRADBLists AS263789 as a direct member
AS11014:AS-CUSTOMERSLACNICLists AS263789 as a direct member
AS263789:AS-CLIENTESLACNICLists AS263789 as a direct member
AS27988:AS-CUSTOMERSRADBLists AS263789 as a direct member
AS52320:AS-CUSTOMERSRADBLists AS263789 as a direct member
AS52363:AS-CORTUCLACNICLists AS263789 as a direct member

RPKI from rpki-client, validated 2026-10-27 12:06 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-27. Cross-check on bgp.he.net.