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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

192.35.206.0/24 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=192.35.206.0%2F24"
JSON Docs

Warning: 192.35.206.0/24 is announced by AS44486 (SYNLINQ). 1 warning

Announced as192.35.206.0/24
Origin ASAS44486 SYNLINQ
Holderlir-at-kernel-host-1-MNT
AllocationRIPE NCC, Austria (AT), allocated 2019-11-12
Size256 addresses
Abuse contactreport@kernelhost.com

What to fix

  1. Warning

    Reverse DNS is not delegated for 192.35.206.0/24, so its addresses have no PTR records.

    Mail receivers look up the PTR of the sending address and reject or spam-score mail without one; traceroutes and logs show bare numbers.

    Fix: Create the reverse zones (domain objects for in-addr.arpa or ip6.arpa) at your RIR, pointing at your nameservers, or ask your provider to set PTR records.

    Open in DNS lookup

Checks

Routing and RPKI Announced as 192.35.206.0/24 by AS44486.
  • Pass: Announced as 192.35.206.0/24 by AS44486.
  • Pass: 192.35.206.0/24 from AS44486 is RPKI valid.
  • Pass: Seen by 100% of RIPE RIS peers.
Route192.35.206.0/24
Origin ASAS44486 SYNLINQ Oliver Horscht trading as "SYNLINQ" RPKI valid
IRR route objectsRIPE
Visibility (RIS peers)320 / 320
First seen2001-04-03
ROAs covering this prefix
ROA prefixMax lengthOrigin AS
192.35.206.0/24 /24 AS44486

Source: RIPEstat (RIPE NCC RIS, Routinator)

Open in ASN & BGP prefix lookup
Reverse DNS Reverse DNS is not delegated for 192.35.206.0/24, so its addresses have no PTR records.
  • Warning: Reverse DNS is not delegated for 192.35.206.0/24, so its addresses have no PTR records.
Reverse zones 1
ZoneNameservers
206.35.192.in-addr.arpa Not delegated
Open in DNS lookup
Registration Found at rdap.arin.net.
  • Pass: Found at rdap.arin.net.
NameAT-KERNEL-HOST-20191112
Handle192.35.206.0 - 192.35.206.255
Range192.35.206.0 – 192.35.206.255
CountryDE
Statusactive
Registered2025-01-24T12:05:34Z
Last changed2025-11-06T01:18:40Z
Abuse contactreport@kernelhost.com
Allocation
Registry (RIR)RIPE NCC
CountryAustria (AT)
Delegated on2019-11-12
StatusAllocated
Delegated range192.35.206.0/24 (192.35.206.0 – 192.35.206.255)

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

Contacts
RoleNameEmail
administrative, technical Administration
registrant lir-at-kernel-host-1-MNT
registrant Hani Hussein trading as KernelHost
registrant RIPE-NCC-HM-MNT
abuse Abuse-C Role report@kernelhost.com

Source: https://rdap.arin.net/registry/ip/192.35.206.0/24. Registration data from rdap.arin.net, shown under its terms of use (terms): not for marketing or bulk collection.

Open in WHOIS / RDAP lookup
PeeringDB No public NOC, policy or technical contact.
  • Pass: AS44486 is in PeeringDB as SYNLINQ.
  • Info: Peering policy: Selective.
  • Info: Present at 3 internet exchanges with 3 ports (100G in total).
  • Warning: No public NOC, policy or technical contact.

About the network that announces this space, so not in the fix list.

NetworkSYNLINQ
AS numberAS44486
TypeNSP, Global
Websitehttps://synlinq.de/
IRR as-setAS-SYNLINQ
Prefixes (IPv4 / IPv6)500 / 70
TrafficBalanced
Peering policySelective
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2026-09-17
Contacts
Salesinfo@synlinq.de

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup