TWS Technologies B.V.

Data as of 2026-07-26
BGP inherited
Cluster stats
Netblocks4 · 4,096 IPv4 addresses
IPv6 1 prefix (largest 2a00:1bc8::/29)
Cluster ID215745137
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 5 shared RIR contact/maintainer handles
Registry names 1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (4)

⬇ export CSV
CIDR Org name Registry Status Confidence
89.106.160.0/21 TWS Technologies B.V. RIPE ALLOCATED PA ● low
139.28.112.0/22 TWS Technologies B.V. RIPE ALLOCATED PA ● low
185.3.176.0/22 TWS Technologies B.V. RIPE ALLOCATED PA ● low
2a00:1bc8::/29 TWS Technologies B.V. RIPE ALLOCATED-BY-RIR ● low

IPv6 ranges (1)

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (4 of 4)
Possible discrepancies (4)

These blocks are registered to TWS Technologies B.V. but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2a00:1bc8::/29 /29 authorized for AS21221 — Infopact Netwerkdiensten B.V.
89.106.160.0/21 /21 authorized for AS21221 — Infopact Netwerkdiensten B.V.
185.3.176.0/22 /22 authorized for AS21221 — Infopact Netwerkdiensten B.V.
139.28.112.0/22 /22 authorized for AS21221 — Infopact Netwerkdiensten B.V.

NIC Handles

DUMY-RIPE DUMY-RIPE ORG-TTB7-RIPE RIPE-NCC-HM-MNT mdewolff