asn.dev

Routing security

AS52888 UNIVERSIDADE FEDERAL DE SAO CARLOS

Education LACNIC

RPKI valid 100% 34 of 34 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 23 authorising this AS

Announcements

What this network originates

34 observed

Every prefix observed with AS52888 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
186.219.80.0/20RPKI validIRR56
186.219.80.0/21RPKI validIRR covering3
186.219.88.0/21RPKI validIRR covering3
186.219.88.0/22RPKI validIRR covering1
186.219.92.0/22RPKI validIRR covering1
200.9.84.0/24RPKI validIRR19
200.18.96.0/21RPKI validIRR56
200.18.96.0/22RPKI validIRR covering3
200.18.96.0/24RPKI validIRR1
200.18.100.0/22RPKI validIRR covering3
200.18.102.0/24RPKI validIRR1
200.18.103.0/24RPKI validIRR covering54
200.18.104.0/23RPKI validIRR56
200.18.104.0/24RPKI validIRR covering3
200.18.105.0/24RPKI validIRR covering3
200.133.224.0/20RPKI validIRR56
200.133.224.0/21RPKI validIRR covering3
200.133.232.0/21RPKI validIRR covering3
200.133.236.0/23RPKI validIRR covering1
200.133.238.0/23RPKI validIRR covering1
200.136.189.0/24RPKI validIRR19
200.136.190.0/23RPKI validIRR19
200.136.190.0/24RPKI validIRR covering1
200.136.191.0/24RPKI validIRR covering1
200.136.192.0/18RPKI validIRR56
200.136.192.0/19RPKI validIRR covering3
200.136.224.0/19RPKI validIRR covering3
200.136.248.0/22RPKI validIRR covering54
2801:b0::/32RPKI validIRR34
2801:b0::/33RPKI validIRR covering19
2801:b0:8000::/33RPKI validIRR covering19
2801:b0:b0::/46RPKI validIRR covering1
2801:b0:c0::/46RPKI validIRR covering1
2801:b0:d0::/46RPKI validIRR covering34

RPKI · ROAs

Route origin authorisations

23 ROAs

Signed statements by address holders that AS52888 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
186.219.80.0/20/20LACNIC
186.219.80.0/21/21LACNIC
186.219.88.0/21/21LACNIC
186.219.88.0/22/22LACNIC
186.219.92.0/22/22LACNIC
200.9.84.0/24/24LACNIC
200.18.96.0/21/24LACNIC
200.18.104.0/23/24LACNIC
200.133.224.0/20/20LACNIC
200.133.224.0/21/21LACNIC
200.133.232.0/21/21LACNIC
200.133.236.0/23/23LACNIC
200.133.238.0/23/23LACNIC
200.136.189.0/24/24LACNIC
200.136.190.0/23/24LACNIC
200.136.192.0/18/24LACNIC
200.136.224.0/19/24LACNIC
2801:b0::/32/32LACNIC
2801:b0::/33/33LACNIC
2801:b0:b0::/46/46LACNIC
2801:b0:c0::/46/46LACNIC
2801:b0:d0::/46/46LACNIC
2801:b0:8000::/33/33LACNIC

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

13 objects · 2 not announced

Route objects naming AS52888 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
200.18.100.0/23RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS200802023-11-13Not announced
200.19.230.0/23RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS19162023-11-13Not announced
186.219.80.0/20RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS200802023-11-13Announced
200.9.84.0/24RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS19162023-11-13Announced
200.18.96.0/21RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS19162023-11-13Announced
200.18.96.0/24RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS200802023-11-13Announced
200.18.102.0/24RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS200802023-11-13Announced
200.18.104.0/23RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS19162023-11-13Announced
200.133.224.0/20RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS19162023-11-13Announced
200.136.189.0/24RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS19162023-11-13Announced
200.136.190.0/23RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS19162023-11-13Announced
200.136.192.0/18RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS19162023-11-13Announced
2801:b0::/32RADBUNIVERSIDADE FEDERAL DE SAO CARLOSMAINT-AS2624272025-07-18Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS52888 directly show who expects to carry it.

AS-setWhereRelationship
AS-53427-TGLOBALRADBLists AS52888 as a direct member
AS-BRITISRADBLists AS52888 as a direct member
AS-CTBC-CUSTOMERS119RADBLists AS52888 as a direct member
AS-CTBC-TOOLS-7RADBLists AS52888 as a direct member
AS-DURAND1-CUSTOMERRADBLists AS52888 as a direct member
AS-FLRNET-AGGREGATERADBLists AS52888 as a direct member
AS-FLRNET-TRANSITRADBLists AS52888 as a direct member
AS-HURRICANEV6RADBLists AS52888 as a direct member
AS-INVISTANET-CUSTOMERSRADBLists AS52888 as a direct member
AS-ITXBRRADBLists AS52888 as a direct member
AS-LARENFNTTCOMLists AS52888 as a direct member
AS-MAXIHOSTRADBLists AS52888 as a direct member
AS-OPENX-CUSTOMERSRADBLists AS52888 as a direct member
AS-RIS-RRC15RIPELists AS52888 as a direct member
AS-RNPRADBLists AS52888 as a direct member
AS-RNP-TRANSITRADBLists AS52888 as a direct member
AS-SAMMRADBLists AS52888 as a direct member
AS-SEABORN-CUSTOMERRADBLists AS52888 as a direct member
AS20965:AS-FROM-REDCLARA-TO-GEANTRIPELists AS52888 as a direct member
AS262761:AS-CUSTOMERSRADBLists AS52888 as a direct member
AS52925:AS-CONERADBLists AS52888 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.