Design Data Systems, Inc.
Cluster stats
Netblocks19
All fragments 109 blocks across 60 clusters
Cluster ID191606590
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 12 shared RIR contact/maintainer handles
Registry names 7 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

2 weekly snapshots · JSON
19 0 netblocks since 2026-07-05
2026-07-05 peak 19 2026-07-06

IP Ranges (19)

⬇ export CSV
CIDR Org name Registry Status Confidence
38.46.84.0/23 Design Data Systems, Inc. BGP ANNOUNCED ● high
64.124.100.0/24 Design Data Systems, Inc. BGP ANNOUNCED ● high
74.209.163.0/24 Design Data Systems, Inc. BGP ANNOUNCED ● high
202.82.185.64/29 DESIGN-HK APNIC ASSIGNED NON-PORTABLE ● high
208.184.155.0/24 Design Data Systems, Inc. BGP ANNOUNCED ● high
208.185.105.0/24 Design Data Systems, Inc. BGP ANNOUNCED ● high
209.66.116.0/24 Design Data Systems, Inc. BGP ANNOUNCED ● high
31.121.59.248/29 DESIGN-IT RIPE ASSIGNED PA ● low
81.131.37.152/29 DESIGN-IT RIPE ASSIGNED PA ● low
109.3.158.88/30 DESIGN-ALL RIPE ASSIGNED PA ● low
213.120.244.128/29 DESIGN-IT RIPE ASSIGNED PA ● low
213.122.170.232/29 DESIGN-IT RIPE ASSIGNED PA ● low
221.6.97.4/30 DESIGN-COM APNIC ASSIGNED NON-PORTABLE ● low
2a00:2381:10b1:100::/56 DESIGN-IT RIPE ASSIGNED ● low
2a00:2381:10b1:300::/56 DESIGN-IT RIPE ASSIGNED ● low
2a00:2381:10b1:400::/56 DESIGN-IT RIPE ASSIGNED ● low
2a00:2381:10b1:700::/56 DESIGN-IT RIPE ASSIGNED ● low
2a00:2381:3574::/48 DESIGN-AND RIPE AGGREGATED-BY-LIR ● low
2a00:2381:c9ed::/48 DESIGN-GO RIPE AGGREGATED-BY-LIR ● low

Network trust

what's this?
RPKI hygiene: B how networks compare →
89.5% of checked blocks have valid RPKI ROA coverage (17 of 19)
Possible discrepancies (6)

These blocks are registered to Design Data Systems, Inc. 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.

2a00:2381:3574::/48 /48 authorized for AS2856 — British Telecommunications PLC
2a00:2381:c9ed::/48 /48 authorized for AS2856 — British Telecommunications PLC
2a00:2381:10b1:100::/56 /56 authorized for AS2856 — British Telecommunications PLC
2a00:2381:10b1:300::/56 /56 authorized for AS2856 — British Telecommunications PLC
2a00:2381:10b1:400::/56 /56 authorized for AS2856 — British Telecommunications PLC
2a00:2381:10b1:700::/56 /56 authorized for AS2856 — British Telecommunications PLC

NIC Handles

AS14011 BTNET-MNT DUMY-RIPE DUMY-RIPE FY159-AP LDCOM-MNT LDCOM-PRO-MNT LL58-AP LL58-AP MAINT-CNCGROUP-JS MAINT-HK-PCCW-BIA-CS TA66-AP