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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

AS8508 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS8508"
JSON Docs

Warning: AS8508 (SILWEB-AS-EDU) announces 15 IPv4 and 3 IPv6 prefixes. 1 warning

AS pageAS8508
HolderSILWEB-AS-EDU Silesian University of Technology, Computer Centre
AllocationRIPE NCC, Poland (PL), allocated 1997-10-13
Prefixes (IPv4 / IPv6)15 / 3
RPKI valid100% (18 / 18)
Upstreams and peers8
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 AS8508 announces 15 IPv4 and 3 IPv6 prefixes.
  • Pass: AS8508 announces 15 IPv4 and 3 IPv6 prefixes.
  • Pass: All 18 announced prefixes are RPKI valid.
  • Pass: Every announced prefix has an IRR route object.
  • Info: 8 upstreams and peers, 0 downstream networks seen.
HolderSILWEB-AS-EDU Silesian University of Technology, Computer Centre
IPv4 prefixes15
IPv6 prefixes3
RPKI18 valid
Downstream networks0

Upstreams and peers seen to the left 8

AS8501 PIONIER AS6939 Hurricane Electric AS15744 SASK-COM AS196844 PIONIER IX transit AS3303 Swisscom AS33891 Core-Backbone AS201054 EPIX POLMIX AS6204 ZET.NET

Announced prefixes 18

83.230.64.0/20 83.230.64.0/21 83.230.96.0/19 83.230.99.0/24 83.230.110.0/24 83.230.118.0/23 91.220.103.0/24 155.158.0.0/16 157.158.0.0/16 212.106.176.0/20 212.106.183.0/24 212.106.184.0/22 213.227.80.0/20 213.227.88.0/21 213.227.96.0/19 2a01:1dc::/32 2a01:1dd::/32 2a01:1de::/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.
NameSILWEB-AS-EDU
HandleAS8508
RangeAS8508
Statusactive
Registered1970-01-01T00:00:00Z
Last changed2019-12-04T11:17:09Z
Abuse contactabuse@silweb.pl
Allocation
Registry (RIR)RIPE NCC
CountryPoland (PL)
Delegated on1997-10-13
StatusAllocated
Delegated rangeAS8508

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

Contacts
RoleNameEmail
registrant Silesian University of Technology, Computer Centre
registrant PL-CKPOLSL-MNT
registrant RIPE-NCC-END-MNT
abuse PL-CKPOLSL Hostmaster Team abuse@silweb.pl

Source: https://rdap.db.ripe.net/autnum/8508. 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: AS8508 is in PeeringDB as SASK-EDU.
  • Info: Peering policy: Open.
  • Info: Present at 3 internet exchanges with 3 ports (31G in total).
  • Warning: No public NOC, policy or technical contact.
NetworkSASK-EDU
AS numberAS8508
TypeEducational/Research, Not Disclosed
Websitehttps://www.polsl.pl/rju1-ck/sask/
IRR as-setRIPE::AS8508:AS-SASK-EDU
Prefixes (IPv4 / IPv6)40 / 10
TrafficNot Disclosed
Peering policyOpen
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2026-11-03

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup