Castup

Castup-Ltd
Registry
Cluster stats
Netblocks8 · 497 IPv4 addresses
All fragments 9 blocks across 2 clusters
Cluster ID209226173
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution Registry record
Shared handles clustered on 6 shared RIR contact/maintainer handles
Registry names 6 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

3 weekly snapshots · JSON
8 0 netblocks since 2026-07-05
2026-07-05 peak 8 2026-07-12

IP Ranges (8)

⬇ export CSV
CIDR Org name Registry Status Confidence
62.0.79.0/28 NV-CASTUP-NET RIPE ASSIGNED PA ● low
62.0.86.224/28 Castup RIPE ASSIGNED PA ● low
62.90.130.0/24 Castup RIPE ASSIGNED PA ● low
80.179.88.184/29 Castup-Ltd RIPE ASSIGNED PA ● low
80.179.88.232/29 Castup-Ltd RIPE ASSIGNED PA ● low
82.80.18.0/26 CASTUP-LTD RIPE ASSIGNED PA ● low
82.80.32.0 – 82.80.32.128 CASTUP RIPE ASSIGNED PA ● low
213.8.195.216/29 CastUp RIPE ASSIGNED PA ● low

Possibly related to this organisation

what's this?
Same name family
Separately-registered clusters whose names share “Castup” — often per-country or per-system registrations of the same brand, occasionally a different organisation sharing the name. Not counted in this organisation's own footprint.
Sub-allocations under carriers
IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own naming convention, not a direct registration.

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (8 of 8)
Possible discrepancies (1)

These blocks are registered to Castup 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.

62.90.130.0/24 /24 authorized for AS1680 — Cellcom Fixed Line Communication L.P

NIC Handles

AS5486-MNT AS8551-MNT AS9116-MNT DUMY-RIPE DUMY-RIPE NV-MNT-RIPE