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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

AS31221 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS31221"
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Warning: AS31221 (NLT-FR) announces 8 IPv4 and 1 IPv6 prefixes. 3 warnings

AS pageAS31221
HolderNLT-FR nLighten France SAS
AllocationRIPE NCC, France (FR), allocated 2005-04-07
Prefixes (IPv4 / IPv6)8 / 1
RPKI valid11% (1 / 9)
Upstreams and peers3
Peering policyOpen

What to fix

  1. Warning

    8 of 9 announced prefixes have no ROA (RPKI not found): 5.252.56.0/22, 5.252.57.0/24, 185.43.36.0/22, 193.135.126.0/24, 217.13.48.0/20 (+3).

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

    Fix: Create a ROA for each at your RIR portal, with origin AS31221 and a max length equal to the prefix length:

    5.252.56.0/22 AS31221 max-length /22
5.252.57.0/24 AS31221 max-length /24
185.43.36.0/22 AS31221 max-length /22
193.135.126.0/24 AS31221 max-length /24
217.13.48.0/20 AS31221 max-length /20
217.13.48.0/24 AS31221 max-length /24
217.13.63.0/24 AS31221 max-length /24
2a02:6f0::/32 AS31221 max-length /32

    Open in RPKI / ROA validator Guide

  2. Warning

    3 of 9 announced prefixes have no IRR route object: 5.252.57.0/24, 217.13.48.0/24, 193.135.126.0/24.

    Many networks build their prefix filters from IRR data; without route objects some of them drop the routes.

    Fix: Create route (IPv4) and route6 (IPv6) objects with origin AS31221 in your RIR’s IRR database (or RADB).

    route: 5.252.57.0/24
origin: AS31221

route: 217.13.48.0/24
origin: AS31221

route: 193.135.126.0/24
origin: AS31221

    Open in ASN & BGP prefix 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 8 of 9 announced prefixes have no ROA (RPKI not found): 5.252.56.0/22, 5.252.57.0/24, 185.43.36.0/22, 193.135.126.0/24, 217.13.48.0/20 (+3).
  • Pass: AS31221 announces 8 IPv4 and 1 IPv6 prefixes.
  • Warning: 8 of 9 announced prefixes have no ROA (RPKI not found): 5.252.56.0/22, 5.252.57.0/24, 185.43.36.0/22, 193.135.126.0/24, 217.13.48.0/20 (+3).
  • Info: 1 of 9 announced prefixes are RPKI valid.
  • Warning: 3 of 9 announced prefixes have no IRR route object: 5.252.57.0/24, 217.13.48.0/24, 193.135.126.0/24.
  • Info: 3 upstreams and peers, 5 downstream networks seen.
HolderNLT-FR nLighten France SAS
IPv4 prefixes8
IPv6 prefixes1
RPKI1 valid · 8 not found
Without IRR route object3
Downstream networks5
Routes to fix
PrefixRPKI
5.252.56.0/22 No ROA
5.252.57.0/24 No ROA
185.43.36.0/22 No ROA
193.135.126.0/24 No ROA
217.13.48.0/20 No ROA
217.13.48.0/24 No ROA
217.13.63.0/24 No ROA
2a02:6f0::/32 No ROA

Upstreams and peers seen to the left 3

AS29075 IELO AS8218 Zayo Europe AS3356 Lumen AS3356

Announced prefixes 9

5.252.56.0/22 5.252.57.0/24 185.43.36.0/22 193.135.126.0/24 193.218.120.0/24 217.13.48.0/20 217.13.48.0/24 217.13.63.0/24 2a02:6f0::/32

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.
NameNLT-FR
HandleAS31221
RangeAS31221
Statusactive
Registered2005-04-07T11:06:15Z
Last changed2025-10-30T13:11:35Z
Abuse contactabuse@euclyde.com
Allocation
Registry (RIR)RIPE NCC
CountryFrance (FR)
Delegated on2005-04-07
StatusAllocated
Delegated rangeAS31221

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

Contacts
RoleNameEmail
registrant EUCLYDE-MNT
registrant nLighten France SAS
registrant RIPE-NCC-END-MNT
abuse Abuse Euclyde abuse@euclyde.com

Source: https://rdap.db.ripe.net/autnum/31221. 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 public NOC, policy or technical contact.
  • Pass: AS31221 is in PeeringDB as nLighten France.
  • Info: Peering policy: Open.
  • Info: No internet exchange ports are listed.
  • Warning: No public NOC, policy or technical contact.
NetworknLighten France (Euclyde)
AS numberAS31221
TypeNSP, Regional
Websitehttps://www.nlighten.eu/fr/
IRR as-setRIPE::AS-EUCLYDE
Prefixes (IPv4 / IPv6)0 / 0
TrafficNot Disclosed
Peering policyOpen
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2024-11-29

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup