asn.dev

Routing security

AS266387 World Fast Telecomunicacoes ME

Unclassified APNIC

RPKI valid 100% 4 of 4 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 3 authorising this AS

Announcements

What this network originates

4 observed

Every prefix observed with AS266387 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
170.81.20.0/22RPKI validIRR53
191.37.140.0/22RPKI validIRR53
191.37.142.0/24RPKI validIRR54
2804:3710::/32RPKI validIRR31

RPKI · ROAs

Route origin authorisations

3 ROAs

Signed statements by address holders that AS266387 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
170.81.20.0/22/24LACNIC
191.37.140.0/22/24LACNIC
2804:3710::/32/48LACNIC

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

17 objects · 13 not announced

Route objects naming AS266387 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
170.81.20.0/23ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
170.81.20.0/23RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
170.81.20.0/24ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
170.81.21.0/24ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
170.81.22.0/23ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
170.81.22.0/23RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
170.81.22.0/24ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
170.81.23.0/24ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
191.37.140.0/23ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
191.37.140.0/24ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
191.37.141.0/24ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
191.37.142.0/23ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
191.37.143.0/24ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Not announced
170.81.20.0/22ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Announced
191.37.140.0/22ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Announced
191.37.142.0/24ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Announced
2804:3710::/32ALTDBWorld Fast Telecomunicacoes MEMAINT-AS2663872025-03-19Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS266387 directly show who expects to carry it.

AS-setWhereRelationship
AS-267613RADBLists AS266387 as a direct member
AS-CTBC-CUSTOMERS131RADBLists AS266387 as a direct member
AS-CTBC-TOOLS-2RADBLists AS266387 as a direct member
AS-DURAND1-CUSTOMERRADBLists AS266387 as a direct member
AS-E1-AUTOMATION-CUSTOMERRADBLists AS266387 as a direct member
AS-EMBRATELNETRADBLists AS266387 as a direct member
AS-G-LAB-CUSTOMERSRADBLists AS266387 as a direct member
AS-HWNG-DOWNSTREAMSALTDBLists AS266387 as a direct member
AS-KODDOSRIPELists AS266387 as a direct member
AS-MAXIHOSTRADBLists AS266387 as a direct member
AS-MOB-CUSTOMER-AS263626RADBLists AS266387 as a direct member
AS-SB-AUTOMATION-CUSTOMERRADBLists AS266387 as a direct member
AS-STORMWALL-SETRADBLists AS266387 as a direct member
AS-STORMWALL-SETRIPELists AS266387 as a direct member
AS-TELIUM-CUSTOMERSRADBLists AS266387 as a direct member
AS-TELYRADBLists AS266387 as a direct member
AS-TELY-TRANSITRADBLists AS266387 as a direct member
AS-UFINET-LATAM-BRASILRADBLists AS266387 as a direct member
AS-UFLA-TRANSCUSTRADBLists AS266387 as a direct member
AS-UPIX-CUSTOMERSRADBLists AS266387 as a direct member
AS266387:AS-ALLALTDBLists AS266387 as a direct member
AS53013:AS-CONERADBLists AS266387 as a direct member

RPKI from rpki-client, validated 2026-10-31 20:05 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-31. Cross-check on bgp.he.net.