Routing security
AS263920 MAST TELECOMUNICACOES E INFORMATICA LTDA
Residential LACNIC Cable/DSL/ISP
Announcements
What this network originates
Every prefix observed with AS263920 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 138.185.240.0/22 | No ROA | IRR | 53 |
| 138.185.240.0/23 | No ROA | IRR | 52 |
| 138.185.242.0/23 | No ROA | IRR | 52 |
| 2804:27c0::/32 | No ROA | IRR | 33 |
| 2804:27c0::/33 | No ROA | IRR | 30 |
| 2804:27c0:8000::/33 | No ROA | IRR | 30 |
| 2804:27c0:ffff::/48 | No ROA | IRR covering | 29 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS263920 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 AS263920 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 |
|---|---|---|---|---|---|
| 138.185.240.0/24 | ALTDB | MAST TELECOMUNICACOES | MAINT-AS263920 | 2021-10-05 | Not announced |
| 138.185.241.0/24 | ALTDB | MAST TELECOMUNICACOES | MAINT-AS263920 | 2021-10-05 | Not announced |
| 138.185.242.0/24 | ALTDB | MAST TELECOMUNICACOES | MAINT-AS263920 | 2021-10-05 | Not announced |
| 138.185.243.0/24 | ALTDB | MAST TELECOMUNICACOES | MAINT-AS263920 | 2021-10-05 | Not announced |
| 138.185.240.0/22 | ALTDB | MAST TELECOMUNICACOES | MAINT-AS263920 | 2021-10-05 | Announced |
| 138.185.240.0/22 | RADB | AS263920 | MAINT-AS52965 | 2025-08-12 | Announced |
| 138.185.240.0/23 | ALTDB | MAST TELECOMUNICACOES | MAINT-AS263920 | 2021-10-05 | Announced |
| 138.185.240.0/23 | RADB | This route object is for a UPX Technologies 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 UPX peers filter based on these objects this route may be rejected if this object is not created. Please contact noc@upx.com.br if you have any questions regarding this object. | MAINT-AS52863 | 2023-11-13 | Announced |
| 138.185.242.0/23 | RADB | This route object is for a UPX Technologies 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 UPX peers filter based on these objects this route may be rejected if this object is not created. Please contact noc@upx.com.br if you have any questions regarding this object. | MAINT-AS52863 | 2023-11-13 | Announced |
| 2804:27c0::/32 | ALTDB | MAST TELECOMUNICACOES | MAINT-AS263920 | 2021-10-05 | Announced |
| 2804:27c0::/32 | RADB | This is a Commcorp Telecom customer proxy route object that was created because no existing route object with the same origin was found. Please contact noc@commcorp.com.br if you have any questions regarding this object. | MAINT-AS14840 | 2023-11-13 | Announced |
| 2804:27c0::/33 | RADB | CLARO S.A. Customer | MAINT-AS4230 | 2023-11-13 | Announced |
| 2804:27c0:8000::/33 | RADB | CLARO S.A. Customer | MAINT-AS4230 | 2023-11-13 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS263920 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-263920 | PeeringDB | Declared by the operator as its own set |
AS-1TELECOM-CUSTOMERS01 | RADB | Lists AS263920 as a direct member |
AS-263920 | ALTDB | Lists AS263920 as a direct member |
AS-267613 | RADB | Lists AS263920 as a direct member |
AS-BRISANET-CUSTOMERS | RADB | Lists AS263920 as a direct member |
AS-CTBC-CUSTOMERS84 | RADB | Lists AS263920 as a direct member |
AS-CTBC-TOOLS-2 | RADB | Lists AS263920 as a direct member |
AS-DURAND1-CUSTOMER | RADB | Lists AS263920 as a direct member |
AS-EMBRATELNET | RADB | Lists AS263920 as a direct member |
AS-FORTEL-CUSTOMERS | RADB | Lists AS263920 as a direct member |
AS-GC-CUSTOMERS | RADB | Lists AS263920 as a direct member |
AS-GNT-CUSTOMERS | RADB | Lists AS263920 as a direct member |
AS-HURRICANEV6 | RADB | Lists AS263920 as a direct member |
AS-KODDOS | RIPE | Lists AS263920 as a direct member |
AS-MAXIHOST | RADB | Lists AS263920 as a direct member |
AS-MOB-CUSTOMER-AS263920 | RADB | Lists AS263920 as a direct member |
AS-MOB-CUSTOMER-AS61832 | RADB | Lists AS263920 as a direct member |
AS-ROCKETNETWORK-CUSTOMERS | RADB | Lists AS263920 as a direct member |
AS-ROCKETNETWORK-TOOLS | RADB | Lists AS263920 as a direct member |
AS-STORMWALL-SET | RADB | Lists AS263920 as a direct member |
AS-STORMWALL-SET | RIPE | Lists AS263920 as a direct member |
AS-UFINET-LATAM-BRASIL | RADB | Lists AS263920 as a direct member |
AS14840:AS-CUSTOMERS-01 | RADB | Lists AS263920 as a direct member |
AS263920:AS-CUSTOMERS | ALTDB | Lists AS263920 as a direct member |
AS52320:AS-CUSTOMERS | RADB | Lists AS263920 as a direct member |
AS53013:AS-CONE | RADB | Lists AS263920 as a direct member |
AS61568:AS-ALOO-TELECOM | RADB | Lists AS263920 as a direct member |
AS61568:AS-ALOO-TELECOM-DDOS | RADB | Lists AS263920 as a direct member |
AS7545:AS-TPGN-CUSTOMERS | RADB | Lists AS263920 as a direct member |
RPKI from rpki-client, validated 2026-10-22 12:01 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-22. Cross-check on bgp.he.net.