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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

AS208453 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS208453"
JSON Docs

Warning: AS208453 (SWEHOST-NET) announces 5 IPv4 and 10 IPv6 prefixes. 1 warning

AS pageAS208453
HolderSWEHOST-NET Johan Karlsson trading as SweHosting
AllocationRIPE NCC, Sweden (SE), allocated 2023-04-28
Prefixes (IPv4 / IPv6)5 / 10
RPKI valid100% (15 / 15)
Upstreams and peers22
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 AS208453 announces 5 IPv4 and 10 IPv6 prefixes.
  • Pass: AS208453 announces 5 IPv4 and 10 IPv6 prefixes.
  • Pass: All 15 announced prefixes are RPKI valid.
  • Pass: Every announced prefix has an IRR route object.
  • Info: 22 upstreams and peers, 17 downstream networks seen.
HolderSWEHOST-NET Johan Karlsson trading as SweHosting
IPv4 prefixes5
IPv6 prefixes10
RPKI15 valid
Downstream networks17

Upstreams and peers seen to the left 22

AS3399 Obenet AS60068 CDN77 AS35133 Eranium Unified Transit AS6939 Hurricane Electric AS39351 31173 Services AS24482 SG.GS AS12859 BIT BV AS41327 Fiber Telecom (FT) AS20473 The Constant Company AS56911 WARIAN AS20764 RASCOM AS50304 Blix Solutions AS

Announced prefixes 15

193.142.4.0/24 193.181.23.0/24 193.181.29.0/24 193.181.243.0/24 193.181.244.0/24 2a07:54c1:f000::/36 2a07:54c4:1761::/48 2a12:bec0:2d0::/48 2a12:bec0:2d2::/48 2a12:bec0:2da::/48 2a12:bec0:2df::/48 2a14:1ec7:f000::/40 2a14:1ec7:f500::/40 2a14:1ec7:fffd::/48 2a14:7583:5900::/40

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.
NameSWEHOST-NET
HandleAS208453
RangeAS208453
Statusactive
Registered2023-04-28T09:24:41Z
Last changed2025-10-12T16:22:02Z
Abuse contactabuse@swehosting.se
Allocation
Registry (RIR)RIPE NCC
CountrySweden (SE)
Delegated on2023-04-28
StatusAllocated
Delegated rangeAS208453

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

Contacts
RoleNameEmail
registrant Johan Karlsson trading as SweHosting
registrant RIPE-NCC-END-MNT
registrant SWEHOSTING-MNT
abuse Abuse contact role object abuse@swehosting.se

Source: https://rdap.db.ripe.net/autnum/208453. 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: AS208453 is in PeeringDB as SweHosting.
  • Info: Peering policy: Open.
  • Info: Present at 4 internet exchanges with 4 ports (121G in total).
  • Warning: No public NOC, policy or technical contact.
NetworkSweHosting (SweHosting)
AS numberAS208453
TypeNSP, Europe
Websitehttps://swehosting.se
IRR as-setAS208453:AS-SWEHOSTING
Prefixes (IPv4 / IPv6)250 / 1000
Traffic20-50Gbps
Peering policyOpen
Policy URLhttps://as208453.net
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2026-10-01

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup