Autonomous system detail  ·  DE flag DE

AS49581

Announced

Operated by Ferdinand Zink trading as Tube-Hosting, DE flag DE.

Summary

// analyst note
Small, actively-routed multi-tenant German budget host; attribute abuse to tenants, not the operator. Four Tor relays on this ASN's Dutch address space are middle relays, not exits — per-IP geolocation and attribution on this address space can still be unreliable. Allocation date, AS rank, customer cone size, RPKI validation, upstreams, and IX presence are Unknown.
// security note
NEUTRAL/DATED/SOURCED, multi-tenant budget host: CleanTalk shows spam-source activity concentrated on a small minority of IPs (11 of ~697 tracked, ~2.70% overall), first flagged November 2025 and active into August 2026, clustered in 3 prefixes at ~1.00% vs 0.00% elsewhere.
IPv4 prefixes
38
~9.7K addresses
IPv6 prefixes
3
announced
Peer networks
92
3 up · 23 down
IANA block
49152-50175
Assigned by RIPE NCC
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: High  ·  14 sources  ·  How this page is checked

AS49581 is an actively-routed German budget hosting and VPS network registered to Ferdinand Zink, trading as Tube-Hosting, headquartered in Bad Königshofen, Germany. As observed by RouteViews (route-views2 and route-views6 collectors) at 2026-08-15 02:00 UTC, it originates 36 IPv4 prefixes (9,216 addresses) and 3 IPv6 prefixes — a small, single-operator hosting network that is fully live, not dormant or legacy.

The operator runs a self-described budget, prepaid hosting business — vServer and VPS via LXC and KVM virtualization, KVM root servers, dedicated servers, and colocation — marketed on no-contract, prepaid terms. Its FAQ lists common customer workloads such as Minecraft and Teamspeak game servers, MySQL databases, and WordPress or Nextcloud installs, with DDoS protection bundled into every server at no extra cost. The company states it was founded in March 2015 and identifies itself as a RIPE NCC member (LIR).

Infrastructure sits at the SkyLink data center in Eygelshoven, Netherlands, which the operator describes as positioned between the DE-CIX and AMS-IX exchange regions with dark-fiber links to Frankfurt and Amsterdam, plus a public looking glass at lg.as49581.net. The same RouteViews snapshot recorded 85 distinct BGP neighbours, of which a 32-entry sample is listed below; AS_PATH adjacency carries no transit/customer direction, so specific upstream relationships, IX memberships, peering policy, RPKI validation, AS rank, and customer cone size are all Unknown.

Org status is active, with the operator's own site pages live and current as of an August 2026 review. The ASN's allocation date is Unknown, and no source establishes a related ASN under the same operator with confidence.

Exposure
Multi-tenant budget VPS/dedicated/colocation host — IPs are shared and rented, so abuse activity typically attaches to individual tenants rather than to the operator itself.
Spam signal
CleanTalk lists 11 currently spam-active IPs of roughly 697 tracked (about 2.70% overall), concentrated in three prefixes at about 1.00% versus 0.00% elsewhere, first flagged November 2025 and still active in August 2026 — cleantalk.org/blacklists/as49581.
Tor relays
Four Tor relays run on this ASN's Dutch address space, all classified as middle relays rather than exit relays as of an August 2026 check, first seen 2025-11-16 — nusenu.github.io/OrNetStats.
Anonymity/P2P tags
ipinfo.io's AS-level profile carries VPN and BitTorrent tags, consistent with anonymity- and P2P-adjacent tenant traffic on a budget VPS host — ipinfo.io/AS49581.
Customer reviews
Unverified, user-submitted Trustpilot reviews describe VPS suspensions over abuse complaints; in one thread the operator states a suspension followed a customer's own outbound "website attacks," i.e. its own enforcement action rather than an incident implicating the operator — trustpilot.com/review/tube-hosting.de.
Negative checks
No CVE, data breach, sanctions listing, law-enforcement seizure, or bulletproof-hosting/booter designation naming AS49581, Tube-Hosting, or Ferdinand Zink turned up in a search conducted in August 2026, and no NANOG mailing-list thread naming either turned up in the same search.
Operator
Tube-Hosting Einzelunternehmen, vertreten durch Ferdinand Zink — a German sole proprietorship trading as "Tube-Hosting," represented by Ferdinand Zink; registered address Schlesierstr. 7, 97631 Bad Königshofen, Germany; VAT ID DE815894279 [Confirmed] — tube-hosting.com/imprint
Country / RIR
Germany (Bad Königshofen); RIPE NCC — the operator's own site identifies it as a RIPE NCC member (LIR) [Confirmed] — tube-hosting.com/network, lg.as49581.net
Allocated
Unknown [Unknown]
Org status
active — multiple operator-site pages (home, network, pricing, FAQ, imprint, looking glass) live and current as of an August 2026 review; company states it was founded March 2015; identifies as a RIPE NCC member (LIR) [Confirmed] — tube-hosting.com/home, tube-hosting.com/faq

Security/abuse context (NEUTRAL, DATED, SOURCED — multi-tenant)

CleanTalk (accessed 2026-08-14) lists 11 currently spam-active IPs of ~697 tracked (~2.70% overall), concentrated in three prefixes at ~1.00% vs 0.00% elsewhere, first flagged November 2025 and continuing into August 2026 [Confirmed] — cleantalk.org/blacklists/as49581. Four Tor relays on this ASN's Dutch address space are classified as middle relays, not exit relays, first seen 2025-11-16 [Confirmed] — nusenu.github.io/OrNetStats (corrects the prior entry's exit-relay characterization). ipinfo.io's AS profile carries VPN and BitTorrent tags [Confirmed] — ipinfo.io/AS49581. Unverified Trustpilot reviews describe abuse-related VPS suspensions; in one thread the operator states a suspension followed a customer's own outbound "website attacks" [Likely, user-generated/unverified] — trustpilot.com/review/tube-hosting.de. No CVE, breach, sanctions, LE seizure, or booter/bulletproof-hosting designation naming AS49581, Tube-Hosting, or Ferdinand Zink found in an August 2026 search; no NANOG mailing-list mention found either

[Confirmed negative] — mailman.nanog.org

Network & routing

Network type
hosting-VPS — budget/prepaid vServer and VPS (LXC/KVM virtualization), KVM root servers, dedicated servers, and colocation; DDoS protection bundled with every server [Confirmed] — tube-hosting.com/home, tube-hosting.com/pricing, tube-hosting.com/network
Size
as observed by RouteViews (route-views2 + route-views6, RIB dump 2026-08-15 02:00 UTC) — 36 IPv4 prefixes (9,216 addresses, ~256 addresses/prefix, no oversized-block skew) and 3 IPv6 prefixes [Confirmed] — the RouteViews BGP routing data (CC BY 4.0) AS49581
Routing/peering
as observed by RouteViews at 2026-08-15 02:00 UTC — 85 distinct BGP neighbours (sample of 32 shown: AS3257, AS6453, AS6939, AS17404, AS24947, AS44592, AS48014, AS49592, AS51396, AS57463, AS58232, AS62403, AS64107, AS197194, AS197477, AS197574, AS198556, AS199504, AS199654, AS199742, AS200173, AS200282, AS200554, AS200823, AS201124, AS201176, AS201269, AS201861, AS201988, AS202413, AS202485, AS202520; none in a reserved/private ASN range) [Confirmed] — the RouteViews BGP routing data (CC BY 4.0) AS49581. Upstream/transit direction cannot be read from AS_PATH adjacency [Unknown]; IX presence and peering policy Unknown — no policy statement found on the operator's own site as of an August 2026 review [Unknown]; public looking glass at lg.as49581.net
[Confirmed] — tube-hosting.com/network, lg.as49581.net
RPKI
unavailable — no source for RPKI validation status on this ASN's announced prefixes [Unknown]
Notable usage
budget/prepaid VPS, KVM root-server, dedicated-server, and colocation hosting marketed to reseller/hosting customers; FAQ names common workloads (Minecraft/Teamspeak game servers, MySQL, WordPress, Nextcloud); "combahton" DDoS protection included free with every server; infrastructure at the SkyLink data center in Eygelshoven, Netherlands, with dark-fiber links to Frankfurt and Amsterdam
[Confirmed] — tube-hosting.com/faq, tube-hosting.com/datacenter, tube-hosting.com/home
Related ASNs
none confirmed [Unknown]
Analyst note
small, actively-routed multi-tenant German budget host; attribute abuse to tenants, not the operator. The four Tor relays on this ASN's Dutch address space are middle relays, not exits — per-IP geolocation and attribution on this address space can still be unreliable. Allocation date, AS rank, customer cone size, RPKI validation, upstreams, and IX presence are Unknown.
[ 02 ] — Announced prefixes

What this network routes.

41 prefixes total · as observed by RouteViews at 2026-09-20 · one collector view, not a global census
// IPv4 prefixes38
  1. 104.224.45.0/24/24
  2. 141.11.243.0/24/24
  3. 144.225.48.0/24/24
  4. 146.19.191.0/24/24
  5. 176.97.210.0/24/24
  6. 185.117.3.0/24/24
  7. 185.84.156.0/24/24
  8. 185.91.127.0/24/24
  9. 193.111.248.0/24/24
  10. 193.111.249.0/24/24
  11. 193.111.250.0/24/24
  12. 193.141.60.0/24/24
  13. 2.58.113.0/24/24
  14. 31.58.182.0/24/24
  15. 37.221.92.0/24/24
  16. 37.221.94.0/24/24
  17. 45.13.227.0/24/24
  18. 45.131.108.0/24/24
  19. 45.131.111.0/24/24
  20. 45.137.203.0/24/24
  21. 45.137.98.0/24/24
  22. 45.142.107.0/24/24
  23. 45.84.198.0/24/24
  24. 5.230.154.0/24/24
  25. 5.231.242.0/24/24
  26. 5.253.246.0/24/24
  27. 5.83.153.0/24/24
  28. 77.90.24.0/24/24
  29. 77.90.48.0/24/24
  30. 80.75.212.0/24/24
  31. 80.91.223.0/24/24
  32. 87.232.112.0/24/24
  33. 89.106.71.0/24/24
  34. 89.144.50.0/24/24
  35. 91.212.121.0/24/24
  36. 92.118.207.0/24/24
  37. 94.249.230.0/24/24
  38. 94.249.246.0/24/24
// IPv6 prefixes3
  1. 2a12:b200::/29/29
  2. 2a12:de40::/32/32
  3. 2a02:2fc0:11::/48/48
[ 03 ] — Notable peers & upstreams

Who it talks to.

92 observed neighbours
// Notable connections32 of 92 observed

Neighbours observed by RouteViews at 2026-09-20, lowest ASN first. Relationships are inferences from the CAIDA AS Relationships Dataset, 2026-08-01, and establish no commercial arrangement; a dash means the inference did not resolve.

ASNOperatorRole
AS3257 GTT Communications, Inc. upstream
AS6453 Tata Communications (America) Inc. upstream
AS44592 — upstream
AS6939 Hurricane Electric LLC peer
AS24947 — downstream
AS48014 — downstream
AS49592 — downstream
AS51396 — downstream
AS57463 — —
AS58232 — downstream
AS62403 — downstream
AS64107 — downstream
AS197194 — downstream
AS197477 — downstream
AS197574 — downstream
AS197974 — downstream
AS198556 — downstream
AS199457 — —
AS199504 — —
AS199654 — downstream
AS199742 — downstream
AS200173 — downstream
AS200282 — downstream
AS200554 — downstream
AS200579 — —
AS200823 — downstream
AS201124 — —
AS201176 — downstream
AS201269 — downstream
AS201861 — downstream
AS201988 — downstream
AS202413 — downstream
Neighbours observed via public BGP collectors; not a complete peering list.