asn.dev

Routing security

AS52821 Torres e Anselmi Ltda

Unclassified LACNIC

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

Announcements

What this network originates

9 observed

Every prefix observed with AS52821 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
138.121.144.0/22No ROAIRR54
138.121.144.0/23No ROAIRR54
138.121.146.0/23No ROAIRR54
177.72.156.0/22No ROAIRR54
177.72.156.0/23No ROAIRR54
177.72.158.0/23No ROAIRR54
2804:25a4::/32No ROAIRR34
2804:25a4::/33No ROAIRR covering29
2804:25a4:8000::/33No ROAIRR covering29

RPKI · ROAs

Route origin authorisations

0 ROAs

Signed statements by address holders that AS52821 may originate these prefixes, up to the maximum length shown.

No ROA names this AS as an authorised origin.

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

15 objects · 8 not announced

Route objects naming AS52821 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
177.72.156.0/24RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
177.72.157.0/24RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
177.72.158.0/24RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
177.72.159.0/24RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
2804:25a4::/34RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
2804:25a4:4000::/34RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
2804:25a4:8000::/34RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
2804:25a4:c000::/34RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Not announced
138.121.144.0/22RADBProxy-registered route objectMAINT-AS81672025-03-22Announced
138.121.144.0/23RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Announced
138.121.146.0/23RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Announced
177.72.156.0/22RADBProxy-registered route objectMAINT-AS81672025-03-22Announced
177.72.156.0/23RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Announced
177.72.158.0/23RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Announced
2804:25a4::/32RADBProxy-registered route objectMAINT-AS81672025-03-22Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS52821 directly show who expects to carry it.

AS-setWhereRelationship
AS-52821PeeringDBDeclared by the operator as its own set
AS-1000-LINKAMERICANRADBLists AS52821 as a direct member
AS-267613RADBLists AS52821 as a direct member
AS-8167-BGP-CUSTOMERSRADBLists AS52821 as a direct member
AS-8167_CUSTOMERSRADBLists AS52821 as a direct member
AS-AS393742NTTCOMLists AS52821 as a direct member
AS-CTBC-CUSTOMERS18RADBLists AS52821 as a direct member
AS-CTBC-CUSTOMERS84RADBLists AS52821 as a direct member
AS-CTBC-TOOLS-4RADBLists AS52821 as a direct member
AS-E1-AUTOMATION-CUSTOMERRADBLists AS52821 as a direct member
AS-EMBRATELNETRADBLists AS52821 as a direct member
AS-FLYSRADBLists AS52821 as a direct member
AS-HURRICANERADBLists AS52821 as a direct member
AS-HURRICANEV6RADBLists AS52821 as a direct member
AS-HWNG-DOWNSTREAMSALTDBLists AS52821 as a direct member
AS-OPCAORADBLists AS52821 as a direct member
AS-TRANSITOSRADBLists AS52821 as a direct member
AS-UFINET-LATAM-BRASILRADBLists AS52821 as a direct member
AS-VSXRADBLists AS52821 as a direct member
AS14282:AS-CUSTOMERSRADBLists AS52821 as a direct member
AS14868:AS-CUSTOMERSALTDBLists AS52821 as a direct member
AS262821:AS-CUSTOMERS-IPRADBLists AS52821 as a direct member
AS262865:AS-CUSTOMERSRADBLists AS52821 as a direct member
AS28146:AS-CLIENTSRADBLists AS52821 as a direct member
AS53013:AS-CONERADBLists AS52821 as a direct member

RPKI from rpki-client, validated 2026-10-18 12:08 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-18. Cross-check on bgp.he.net.