asn.dev

Routing security

AS263543 Butzen e Mentges Ltda

Unclassified LACNIC

RPKI valid 100% 11 of 11 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

11 observed

Every prefix observed with AS263543 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
143.202.120.0/22RPKI validIRR54
143.202.120.0/23RPKI validIRR55
143.202.122.0/23RPKI validIRR52
191.5.236.0/22RPKI validIRR54
191.5.236.0/23RPKI validIRR55
191.5.238.0/23RPKI validIRR55
2804:13a4::/32RPKI validIRR33
2804:13a4::/34RPKI validIRR covering31
2804:13a4:4000::/34RPKI validIRR covering31
2804:13a4:8000::/34RPKI validIRR covering31
2804:13a4:c000::/34RPKI validIRR covering31

RPKI · ROAs

Route origin authorisations

3 ROAs

Signed statements by address holders that AS263543 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
143.202.120.0/22/24LACNIC
191.5.236.0/22/24LACNIC
2804:13a4::/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

12 objects · 5 not announced

Route objects naming AS263543 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
143.202.120.0/24RADBCLARO S.A. CustomerMAINT-AS42302024-07-04Not announced
143.202.121.0/24RADBCLARO S.A. CustomerMAINT-AS42302024-07-04Not announced
143.202.122.0/24RADBCLARO S.A. CustomerMAINT-AS42302024-07-04Not announced
143.202.123.0/24RADBCLARO S.A. CustomerMAINT-AS42302024-07-04Not announced
2804:13a4:1000::/36RADBCLARO S.A. CustomerMAINT-AS42302024-07-03Not announced
143.202.120.0/22RADBProxy-registered route objectMAINT-AS81672025-03-22Announced
143.202.120.0/23RADBCLARO S.A. CustomerMAINT-AS42302024-07-04Announced
143.202.122.0/23RADBCLARO S.A. CustomerMAINT-AS42302024-07-04Announced
191.5.236.0/22RADBProxy-registered route objectMAINT-AS81672025-03-22Announced
191.5.236.0/23RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Announced
191.5.238.0/23RADBCLARO S.A. CustomerMAINT-AS42302023-11-13Announced
2804:13a4::/32RADBSolicitado por IPv6 Internet. Feb 23 2015MAINT-AS186782023-11-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS263543 directly show who expects to carry it.

AS-setWhereRelationship
AS-263649RADBLists AS263543 as a direct member
AS-263649-ANNCRADBLists AS263543 as a direct member
AS-267613RADBLists AS263543 as a direct member
AS-53062-CUSTOMERSALTDBLists AS263543 as a direct member
AS-53062-CUSTOMERSRADBLists AS263543 as a direct member
AS-ADYLNET-CUSTOMERSRADBLists AS263543 as a direct member
AS-BRPHONIA-CUSTOMERSRADBLists AS263543 as a direct member
AS-CTBC-CUSTOMERS19RADBLists AS263543 as a direct member
AS-CTBC-CUSTOMERS87RADBLists AS263543 as a direct member
AS-CTBC-TOOLS-1RADBLists AS263543 as a direct member
AS-DURAND1-CUSTOMERRADBLists AS263543 as a direct member
AS-E1-AUTOMATION-CUSTOMERRADBLists AS263543 as a direct member
AS-EMBRATELNETRADBLists AS263543 as a direct member
AS-FORTE-TELECOM-CUSTOMER-RJRADBLists AS263543 as a direct member
AS-HUGENET-CUSTOMERSRADBLists AS263543 as a direct member
AS-HURRICANERADBLists AS263543 as a direct member
AS-HURRICANEV6RADBLists AS263543 as a direct member
AS-HWNG-DOWNSTREAMSALTDBLists AS263543 as a direct member
AS-ROCKETNETWORK-TOOLS-2RADBLists AS263543 as a direct member
AS-SB-AUTOMATION-CUSTOMERRADBLists AS263543 as a direct member
AS-TASCOM-CUSTOMERSRADBLists AS263543 as a direct member
AS-UFINET-LATAM-BRASILRADBLists AS263543 as a direct member
AS28146:AS-CLIENTSRADBLists AS263543 as a direct member
AS28343:AS-CUSTOMERSRADBLists AS263543 as a direct member
AS3491:AS-CUSTOMERS-NARADBLists AS263543 as a direct member
AS53013:AS-CONERADBLists AS263543 as a direct member

RPKI from rpki-client, validated 2026-10-15 12:09 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-15. Cross-check on bgp.he.net.