NETISP LTD

Data as of 2026-08-23
BGP inherited
Cluster stats
Netblocks29 · 1,033 IPv4 addresses
IPv6 19 prefixes (largest 2a06:1b80::/29)
All fragments 38 blocks across 2 clusters
Cluster ID227341692
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 10 shared RIR contact/maintainer handles
Registry names 17 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

9 weekly snapshots · JSON
37 0 netblocks since 2026-07-05
2026-07-05 peak 37 2026-08-23

IP Ranges (29)

⬇ export CSV
CIDR Org name Registry Status Confidence
185.101.76.0/24 NETISP LTD BGP ANNOUNCED ● high
185.101.77.0/24 NETISP LTD BGP ANNOUNCED ● high
185.101.78.0/24 NETISP LTD BGP ANNOUNCED ● high
185.101.79.0/24 NETISP LTD BGP ANNOUNCED ● high
2001:67c:11bc::/48 NETISP LTD BGP ANNOUNCED ● high
2a06:1b80::/29 NETISP LTD BGP ANNOUNCED ● high
2a06:1b82::/32 NETISP LTD BGP ANNOUNCED ● high
2a06:1b86::/32 NETISP LTD BGP ANNOUNCED ● high
2a06:1b87:300::/48 NETISP LTD BGP ANNOUNCED ● high
2a06:1b87:400::/48 NETISP LTD BGP ANNOUNCED ● high
2a06:1b87:500::/48 NETISP LTD BGP ANNOUNCED ● high
2a06:1b87:800::/48 NETISP LTD BGP ANNOUNCED ● high
2a06:1b87:d00::/48 NETISP LTD BGP ANNOUNCED ● high
81.2.121.232/32 NETISP-LTD RIPE ASSIGNED PA ● low
185.101.76.0/22 NETISP LTD RIPE ALLOCATED PA ● low
185.101.76.0 – 185.101.76.254 NETISP-LTD RIPE ASSIGNED PA ● low
185.101.77.0 – 185.101.77.254 NETISP-LTD RIPE ASSIGNED PA ● low
185.101.79.0 – 185.101.79.254 NETISP-LTD RIPE ASSIGNED PA ● low
217.38.169.64/29 NETISP-LIMITED RIPE ASSIGNED PA ● low
2a00:2381:c43a::/48 NETISP-LIMITED RIPE AGGREGATED-BY-LIR ● low
2a00:2381:c43a::/56 NETISP-LIMITED RIPE ASSIGNED ● low
2a06:1b87:600::/48 NETISP_SUB6 RIPE ASSIGNED ● low
2a06:1b87:700::/48 NETISP_SUB7 RIPE ASSIGNED ● low
2a06:1b87:900::/48 NETISP_SUB9 RIPE ASSIGNED ● low
2a06:1b87:a00::/48 NETISP_SUB10 RIPE ASSIGNED ● low
2a06:1b87:b00::/48 NETISP_SUB11 RIPE ASSIGNED ● low
2a06:1b87:c00::/48 NETISP_SUB12 RIPE ASSIGNED ● low
2a06:1b87:e00::/48 NETISP_SUB14 RIPE ASSIGNED ● low
2a06:1b87:f00::/48 NETISP_SUB15 RIPE ASSIGNED ● low

IPv6 ranges (19)

showing the 15 largest allocations
CIDR
2a06:1b80::/29
2a06:1b82::/32
2a06:1b86::/32
2001:67c:11bc::/48
2a00:2381:c43a::/48
2a06:1b87:300::/48
2a06:1b87:400::/48
2a06:1b87:500::/48
2a06:1b87:600::/48
2a06:1b87:700::/48
2a06:1b87:800::/48
2a06:1b87:900::/48
2a06:1b87:a00::/48
2a06:1b87:b00::/48
2a06:1b87:c00::/48

Network trust

what's this?
RPKI hygiene: A how networks compare →
97.3% of checked blocks have valid RPKI ROA coverage (36 of 37)
Possible discrepancies (2)

These blocks are registered to NETISP LTD 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:c43a::/48 /48 authorized for AS2856 — British Telecommunications Limited
2a00:2381:c43a::/56 /56 authorized for AS2856 — British Telecommunications Limited

NIC Handles

AA AS199462 BTNET-MNT DUMY-RIPE DUMY-RIPE MNT-NETISP MNT-NETISP ORG-NL254-RIPE RIPE-NCC-END-MNT RIPE-NCC-HM-MNT