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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

AS39563 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS39563"
JSON Docs

Pass: AS39563 (UCSYSTEMS) announces 9 IPv4 and 1 IPv6 prefixes. Nothing to fix.

AS pageAS39563
HolderUCSYSTEMS CTA Systems B.V.
AllocationRIPE NCC, Netherlands (NL), allocated 2017-11-10
Prefixes (IPv4 / IPv6)9 / 1
RPKI valid100% (10 / 10)
Upstreams and peers38
Peering policyOpen

Checks

Routing and RPKI AS39563 announces 9 IPv4 and 1 IPv6 prefixes.
  • Pass: AS39563 announces 9 IPv4 and 1 IPv6 prefixes.
  • Pass: All 10 announced prefixes are RPKI valid.
  • Pass: Every announced prefix has an IRR route object.
  • Info: 38 upstreams and peers, 1 downstream networks seen.
HolderUCSYSTEMS CTA Systems B.V.
IPv4 prefixes9
IPv6 prefixes1
RPKI10 valid
Downstream networks1

Upstreams and peers seen to the left 38

AS43350 NFOrce Internet Services :: 43350 AS35133 Eranium Unified Transit AS20562 Open Peering AS6939 Hurricane Electric AS24785 Joint Transit AS28685 RoutIT B.V. AS33891 Core-Backbone AS20485 TransTelecom AS37468 Angola Cables AS1031 PEER-1 AS14840 BR.Digital AS20764 RASCOM

Announced prefixes 10

85.8.131.0/24 185.80.8.0/24 185.80.9.0/24 185.80.10.0/24 185.80.11.0/24 185.231.16.0/24 185.231.17.0/24 185.231.18.0/24 185.231.19.0/24 2a0c:3900::/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.
NameUCSYSTEMS
HandleAS39563
RangeAS39563
Statusactive
Registered2017-11-10T15:15:11Z
Last changed2021-06-25T17:02:17Z
Abuse contactabuse@ucsystems.nl
Allocation
Registry (RIR)RIPE NCC
CountryNetherlands (NL)
Delegated on2017-11-10
StatusAllocated
Delegated rangeAS39563

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

Contacts
RoleNameEmail
registrant CTA Systems B.V.
registrant RIPE-NCC-END-MNT
registrant UCSYSTEMS-MNT
abuse Abuse-C Role abuse@ucsystems.nl

Source: https://rdap.db.ripe.net/autnum/39563. 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 AS39563 is in PeeringDB as UC Systems.
  • Pass: AS39563 is in PeeringDB as UC Systems.
  • Info: Peering policy: Open.
  • Info: Present at 12 internet exchanges with 14 ports (140G in total).
NetworkUC Systems (CTA Systems B.V.)
AS numberAS39563
TypeNSP, Regional
Websitehttps://ucsystems.nl
IRR as-setAS-UCSYSTEMS
Prefixes (IPv4 / IPv6)30 / 10
Traffic1-5Gbps, Mostly Inbound
Peering policyOpen
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2026-10-30
Contacts
Abuseabuse@ucsystems.nl
NOCservice@ucsystems.nl
Policypeering@ucsystems.nl

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup