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Network report

Who holds an IP address, prefix or AS number, how it is routed (origin AS, RPKI, IRR), its reverse DNS, blocklist listings and PeeringDB record, with what to fix first.

IP address, prefix or AS number

AS273487 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS273487"
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Warning: AS273487 (AS273487) announces 0 IPv4 and 3 IPv6 prefixes. 3 warnings

AS pageAS273487
HolderAS273487 - TARVOS FIBRAS
AllocationLACNIC, Brazil (BR), allocated 2024-03-28
Prefixes (IPv4 / IPv6)0 / 3
RPKI valid0% (0 / 3)
Upstreams and peers3

What to fix

  1. Warning

    3 of 3 announced prefixes have no ROA (RPKI not found): 2804:8f60:8000::/33, 2804:8f60::/32, 2804:8f60::/33.

    Without a ROA, networks cannot tell your routes from a hijack.

    Fix: Create a ROA for each at your RIR portal, with origin AS273487 and a max length equal to the prefix length:

    2804:8f60:8000::/33 AS273487 max-length /33
2804:8f60::/32 AS273487 max-length /32
2804:8f60::/33 AS273487 max-length /33

    Open in RPKI / ROA validator Guide

  2. Warning

    No IRR as-set is listed.

    Peers and route servers build prefix filters from the as-set. Without one they fall back to the AS number alone, which breaks as soon as you have customers.

    Fix: Create an as-set in your RIR’s IRR database and add it to your PeeringDB record.

    Open in PeeringDB lookup

  3. Warning

    No public NOC, policy or technical contact.

    Other networks use these addresses to set up peering and to reach you during an incident.

    Fix: Add a role contact (for example noc@ or peering@ an address you monitor) with visibility Public.

    Open in PeeringDB lookup

Checks

Routing and RPKI 3 of 3 announced prefixes have no ROA (RPKI not found): 2804:8f60:8000::/33, 2804:8f60::/32, 2804:8f60::/33.
  • Pass: AS273487 announces 0 IPv4 and 3 IPv6 prefixes.
  • Warning: 3 of 3 announced prefixes have no ROA (RPKI not found): 2804:8f60:8000::/33, 2804:8f60::/32, 2804:8f60::/33.
  • Pass: Every announced prefix has an IRR route object.
  • Info: 3 upstreams and peers, 2 downstream networks seen.
HolderAS273487 - TARVOS FIBRAS
IPv4 prefixes0
IPv6 prefixes3
RPKI3 not found
Downstream networks2
Routes to fix
PrefixRPKI
2804:8f60:8000::/33 No ROA
2804:8f60::/32 No ROA
2804:8f60::/33 No ROA

Upstreams and peers seen to the left 3

AS266143 UP AS53062 Brasil TecPar AS14840 BR.Digital

Announced prefixes 3

2804:8f60:8000::/33 2804:8f60::/32 2804:8f60::/33

Source: RIPEstat (RIPE NCC RIS, Routinator, IRR); AS names: Team Cymru

Open in ASN & BGP prefix lookup
Registration Found at rdap.lacnic.net.
  • Pass: Found at rdap.lacnic.net.
NameASN273487
Handle273487
RangeAS273487
CountryBR
Registered2024-03-28T11:04:46Z
Last changed2024-03-28T11:04:46Z
Abuse contactjose.marchioreto@tarvosfibra.com.br
Allocation
Registry (RIR)LACNIC
CountryBrazil (BR)
Delegated on2024-03-28
StatusAllocated
Delegated rangeAS273487

Source: RIR delegation data, updated daily. The country is where the range was registered, not necessarily where it is used.

Contacts
RoleNameEmail
registrant TARVOS FIBRAS
administrative, abuse José Roberto Marchioreto jose.marchioreto@tarvosfibra.com.br

Source: https://rdap.lacnic.net/rdap/autnum/273487. Registration data from rdap.lacnic.net, shown under its terms of use (terms): not for marketing or bulk collection.

Open in WHOIS / RDAP lookup
PeeringDB No IRR as-set is listed.
  • Pass: AS273487 is in PeeringDB as TARVOS FIBRAS.
  • Info: No internet exchange ports are listed.
  • Warning: No IRR as-set is listed.
  • Warning: No public NOC, policy or technical contact.
NetworkTARVOS FIBRAS
AS numberAS273487
Type, Not Disclosed
TrafficNot Disclosed
Ratio requiredNo
Last updated2026-03-23

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup