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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

AS203291 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS203291"
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Warning: AS203291 (FRYSLAN Arend Brouwer) announces nothing right now. 1 warning

AS pageAS203291
HolderFRYSLAN Arend Brouwer
AllocationRIPE NCC, Netherlands (NL), allocated 2025-12-02
Prefixes (IPv4 / IPv6)0 / 0
Peering policyOpen

What to fix

  1. 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 AS203291 is not announcing anything right now.
  • Info: AS203291 is not announcing anything right now.
HolderFRYSLAN Arend Brouwer
IPv4 prefixes0
IPv6 prefixes0
Downstream networks10

Upstreams and peers seen to the left 7

AS25091 IP-Max SA AS39351 31173 Services AS5405 Inter.link AS14840 BR.Digital AS1031 PEER-1 AS12735 TurkNet Iletisim Hizmetleri A.S AS62000 moji-netrix edge network

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.
NameFRYSLAN
HandleAS203291
RangeAS203291
Statusactive
Registered2025-12-02T12:52:03Z
Last changed2026-10-27T19:23:40Z
Abuse contactnoc@eritap.com
Allocation
Registry (RIR)RIPE NCC
CountryNetherlands (NL)
Delegated on2025-12-02
StatusAllocated
Delegated rangeAS203291

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

Contacts
RoleNameEmail
registrant IPNG-MNT
registrant nl-eritap-1-MNT
registrant Arend Brouwer
registrant RIPE-NCC-END-MNT
abuse Abuse-C Role noc@eritap.com

Source: https://rdap.db.ripe.net/autnum/203291. 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: AS203291 is in PeeringDB as FrysLÂN.
  • Info: Peering policy: Open.
  • Info: Present at 2 internet exchanges with 2 ports (300G in total).
  • Warning: No public NOC, policy or technical contact.
NetworkFrysLÂN (FrysLÂN)
AS numberAS203291
TypeNSP, Regional
Websitehttps://www.frys-ix.net
IRR as-setAS203291:AS-MEMBERS
Prefixes (IPv4 / IPv6)250000 / 150000
TrafficBalanced
Peering policyOpen
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2026-08-19

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup