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

AS57223 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS57223"
JSON Docs

Warning: AS57223 (NOVA-ASN SIA NETVISION) announces 4 IPv4 and 0 IPv6 prefixes. 4 warnings

AS pageAS57223
HolderNOVA-ASN SIA NETVISION
AllocationRIPE NCC, Latvia (LV), allocated 2011-08-26
Prefixes (IPv4 / IPv6)4 / 0
RPKI valid0% (0 / 4)
Upstreams and peers1
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

    4 of 4 announced prefixes have no ROA (RPKI not found): 81.163.72.0/21, 193.0.136.0/22, 193.0.140.0/23, 195.211.156.0/22.

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

    Fix: Create a ROA for each at your RIR portal, with origin AS57223 and a max length equal to the prefix length:

    81.163.72.0/21 AS57223 max-length /21
193.0.136.0/22 AS57223 max-length /22
193.0.140.0/23 AS57223 max-length /23
195.211.156.0/22 AS57223 max-length /22

    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

  4. 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 No IPv6 prefixes announced.
  • Pass: AS57223 announces 4 IPv4 and 0 IPv6 prefixes.
  • Warning: No IPv6 prefixes announced.
  • Warning: 4 of 4 announced prefixes have no ROA (RPKI not found): 81.163.72.0/21, 193.0.136.0/22, 193.0.140.0/23, 195.211.156.0/22.
  • Pass: Every announced prefix has an IRR route object.
  • Info: One upstream or peer seen (AS43513): an outage there takes the whole network off the internet.
HolderNOVA-ASN SIA NETVISION
IPv4 prefixes4
IPv6 prefixes0
RPKI4 not found
Downstream networks0
Routes to fix
PrefixRPKI
81.163.72.0/21 No ROA
193.0.136.0/22 No ROA
193.0.140.0/23 No ROA
195.211.156.0/22 No ROA

Upstreams and peers seen to the left 1

AS43513 Nano IT

Announced prefixes 4

81.163.72.0/21 193.0.136.0/22 193.0.140.0/23 195.211.156.0/22

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

Open in ASN & BGP prefix lookup
Registration Found at rdap.db.ripe.net.
  • Pass: Found at rdap.db.ripe.net.
NameNOVA-ASN
HandleAS57223
RangeAS57223
Statusactive
Registered2011-08-26T09:41:39Z
Last changed2025-11-04T13:04:39Z
Abuse contactnetworking@dnet.lv
Allocation
Registry (RIR)RIPE NCC
CountryLatvia (LV)
Delegated on2011-08-26
StatusAllocated
Delegated rangeAS57223

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

Contacts
RoleNameEmail
registrant SIA NETVISION
registrant RIPE-NCC-END-MNT
registrant VN6424-MNT
abuse DNet Administrative contacts networking@dnet.lv

Source: https://rdap.db.ripe.net/autnum/57223. Registration data from rdap.db.ripe.net, shown under its terms of use (terms): not for marketing or bulk collection. Personal contacts in this registry are not shown.

Open in WHOIS / RDAP lookup
PeeringDB No IRR as-set is listed.
  • Pass: AS57223 is in PeeringDB as NOVA Latvia.
  • Info: Peering policy: Open.
  • Info: No internet exchange ports are listed.
  • Warning: No IRR as-set is listed.
  • Warning: No public NOC, policy or technical contact.
  • Info: The record was last updated 2023-05-10.
NetworkNOVA Latvia
AS numberAS57223
Type, Not Disclosed
Prefixes (IPv4 / IPv6)0 / 0
TrafficNot Disclosed
Peering policyOpen
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2023-05-10

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup