Routing security
AS52672 AS52672 - B3 S.A. Brasil, Bolsa, Balcao
Unclassified LACNIC
Announcements
What this network originates
Every prefix observed with AS52672 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 177.66.124.0/23 | No ROA | IRR | 54 |
| 177.66.124.0/24 | No ROA | IRR | 57 |
| 177.66.125.0/24 | No ROA | IRR | 57 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS52672 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
Route objects naming AS52672 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.
| Prefix | Source | Description | Maintainer | Changed | Routing |
|---|---|---|---|---|---|
| 177.66.125.129/32 | RADB | America Movil Brasil | MAINT-AS28513 | 2025-09-03 | Not announced |
| 177.66.125.130/32 | RADB | America Movil Brasil | MAINT-AS28513 | 2025-09-03 | Not announced |
| 177.66.124.0/23 | RADB | EMBRATEL | MAINT-AS28513 | 2025-09-03 | Announced |
| 177.66.124.0/24 | RADB | This route object is for a B3 SA customer route, which is being exported under this origin AS. This route object was created because no existing route object with the same origin was found, and since some B3 SA peers filter based on these objects this route may be rejected if this object is not created. Please contact di-gisr-n3@b3.com.br if you have any questions | MAINT-AS52672 | 2023-11-13 | Announced |
| 177.66.125.0/24 | RADB | This route object is for a B3 SA customer route, which is being exported under this origin AS. This route object was created because no existing route object with the same origin was found, and since some B3 SA peers filter based on these objects this route may be rejected if this object is not created. Please contact di-gisr-n3@b3.com.br if you have any questions | MAINT-AS52672 | 2023-11-13 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS52672 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-262672 | RADB | Lists AS52672 as a direct member |
AS-28513 | RADB | Lists AS52672 as a direct member |
AS-52925 | RADB | Lists AS52672 as a direct member |
AS-CTBC-CUSTOMERS124 | RADB | Lists AS52672 as a direct member |
AS-CTBC-CUSTOMERS196 | RADB | Lists AS52672 as a direct member |
AS-CTBC-TOOLS-4 | RADB | Lists AS52672 as a direct member |
AS-EC-SP | RADB | Lists AS52672 as a direct member |
AS-EMBRATELNET | RADB | Lists AS52672 as a direct member |
AS-HWNG-DOWNSTREAMS | ALTDB | Lists AS52672 as a direct member |
AS-KDDCUSTOMER2 | RADB | Lists AS52672 as a direct member |
AS-TASCOM-CUSTOMERS | RADB | Lists AS52672 as a direct member |
AS-TELSTRA-INTL-CUSTOMERS | RADB | Lists AS52672 as a direct member |
AS-UFINET-LATAM-BRASIL | RADB | Lists AS52672 as a direct member |
AS13335:AS-CUSTOMERS | ARIN | Lists AS52672 as a direct member |
AS52925:AS-CONE | RADB | Lists AS52672 as a direct member |
AS53013:AS-CONE | RADB | Lists AS52672 as a direct member |
RPKI from rpki-client, validated 2026-11-01 13:04 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-11-01. Cross-check on bgp.he.net.