Skip to content
thenetworkery

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

AS53020 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS53020"
JSON Docs

Warning: AS53020 (AS53020) announces 7 IPv4 and 0 IPv6 prefixes. 3 warnings

AS pageAS53020
HolderAS53020 - IDT Brasil Telecomunicacoes Ltda.
AllocationLACNIC, Brazil (BR), allocated 2011-05-25
Prefixes (IPv4 / IPv6)7 / 0
RPKI valid0% (0 / 7)
Upstreams and peers11
Peering policyOpen

What to fix

  1. Warning

    No IPv6 prefixes announced.

    Networks without IPv6 force their users through NAT64 or leave them unreachable from IPv6-only networks.

    Fix: Get an IPv6 allocation from your RIR (usually free with your IPv4 membership) and announce it.

    Open in ASN & BGP prefix lookup

  2. Warning

    7 of 7 announced prefixes have no ROA (RPKI not found): 177.53.192.0/22, 177.53.192.0/24, 177.53.193.0/24, 177.53.195.0/24, 205.147.129.0/24 (+2).

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

    Fix: Create a ROA for each at your RIR portal, with origin AS53020 and a max length equal to the prefix length:

    177.53.192.0/22 AS53020 max-length /22
177.53.192.0/24 AS53020 max-length /24
177.53.193.0/24 AS53020 max-length /24
177.53.195.0/24 AS53020 max-length /24
205.147.129.0/24 AS53020 max-length /24
205.147.133.0/24 AS53020 max-length /24
205.147.140.0/24 AS53020 max-length /24

    Open in RPKI / ROA validator Guide

  3. 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

Checks

Routing and RPKI No IPv6 prefixes announced.
  • Pass: AS53020 announces 7 IPv4 and 0 IPv6 prefixes.
  • Warning: No IPv6 prefixes announced.
  • Warning: 7 of 7 announced prefixes have no ROA (RPKI not found): 177.53.192.0/22, 177.53.192.0/24, 177.53.193.0/24, 177.53.195.0/24, 205.147.129.0/24 (+2).
  • Pass: Every announced prefix has an IRR route object.
  • Info: 11 upstreams and peers, 0 downstream networks seen.
HolderAS53020 - IDT Brasil Telecomunicacoes Ltda.
IPv4 prefixes7
IPv6 prefixes0
RPKI7 not found
Downstream networks0
Routes to fix
PrefixRPKI
177.53.192.0/22 No ROA
177.53.192.0/24 No ROA
177.53.193.0/24 No ROA
177.53.195.0/24 No ROA
205.147.129.0/24 No ROA
205.147.133.0/24 No ROA
205.147.140.0/24 No ROA

Upstreams and peers seen to the left 11

AS198949 Radware AS3356 Lumen AS3356 AS4230 Claro AS263452 AS263452 AS16735 Algar AS6939 Hurricane Electric AS52925 Ascenty DataCenters e Telecom AS137409 Global Secure Layer AS6057 ANTEL AS61626 Anel de Conectividade AS7195 EdgeUno

Announced prefixes 7

177.53.192.0/22 177.53.192.0/24 177.53.193.0/24 177.53.195.0/24 205.147.129.0/24 205.147.133.0/24 205.147.140.0/24

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.
NameASN53020
Handle53020
RangeAS53020
CountryBR
Registered2011-05-25T12:00:00Z
Last changed2025-08-18T17:22:39Z
Abuse contactcontasapagar@net2phone.com
Allocation
Registry (RIR)LACNIC
CountryBrazil (BR)
Delegated on2011-05-25
StatusAllocated
Delegated rangeAS53020

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

Contacts
RoleNameEmail
registrant IDT Brasil Telecomunicações Ltda.
administrative, abuse Eliseu Carnizello contasapagar@net2phone.com

Source: https://rdap.lacnic.net/rdap/autnum/53020. 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: AS53020 is in PeeringDB as IDT Brasil Telecomunicaes Ltda..
  • Info: Peering policy: Open.
  • Info: No internet exchange ports are listed.
  • Warning: No IRR as-set is listed.
  • Info: The record was last updated 2022-07-27.
NetworkIDT Brasil Telecomunicaes Ltda. (IDT Brasil)
AS numberAS53020
TypeEnterprise, Global
Websitehttp://www.idt.net
Prefixes (IPv4 / IPv6)1 / 0
TrafficBalanced
Peering policyOpen
LocationsNot Required
Ratio requiredNo
ContractsPrivate Only
Last updated2022-07-27
Contacts
NOCoperacoes@idt.net

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup