Martin Prager trading as NbIServ
Martin Prager trading as "NbIServ"
Cluster stats
Netblocks38
All fragments 862 blocks across 524 clusters
Cluster ID191607287
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 21 shared RIR contact/maintainer handles
Registry names 8 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

2 weekly snapshots · JSON
38 0 netblocks since 2026-07-05
2026-07-05 peak 38 2026-07-06

IP Ranges (38)

⬇ export CSV
CIDR Org name Registry Status Confidence
31.185.104.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
31.185.110.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
31.185.111.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
45.149.216.0/23 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
46.182.16.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
46.182.17.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
46.182.18.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
46.182.19.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
46.182.20.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
46.182.21.0 – 46.182.21.128 Martin Prager trading as "NbIServ" RIPE ASSIGNED PA ● high
46.182.21.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
46.182.21.129 – 46.182.21.255 Martin Prager trading as "NbIServ" RIPE ASSIGNED PA ● high
46.182.22.0 – 46.182.22.128 Martin Prager trading as "NbIServ" RIPE ASSIGNED PA ● high
46.182.22.129 – 46.182.22.255 Martin Prager trading as "NbIServ" RIPE ASSIGNED PA ● high
46.182.23.0/24 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
54.37.48.108/30 Martin Roy RIPE LEGACY ● high
2a02:2970::/29 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
2a02:2970:ffff::/48 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
2a0f:7600::/32 Martin Prager trading as "NbIServ" BGP ANNOUNCED ● high
31.185.104.0/21 Martin Prager trading as "NbIServ" RIPE ALLOCATED PA ● low
31.185.110.0/24 Martin Prager trading as "NbIServ" RIPE SUB-ALLOCATED PA ● low
31.185.111.0/24 Martin Prager trading as "NbIServ" RIPE SUB-ALLOCATED PA ● low
46.182.16.0/21 Martin Prager trading as "NbIServ" RIPE ALLOCATED PA ● low
46.182.20.0/24 Martin Prager trading as "NbIServ" RIPE SUB-ALLOCATED PA ● low
46.182.21.0/24 Martin Prager trading as "NbIServ" RIPE SUB-ALLOCATED PA ● low
46.182.23.0/26 Martin Prager trading as "NbIServ" RIPE ASSIGNED PA ● low
81.187.69.192/28 MARTIN-HOW RIPE ASSIGNED PA ● low
81.187.87.60/32 MARTIN-HOW RIPE ASSIGNED PA ● low
81.187.192.240/29 MARTIN-HOW RIPE ASSIGNED PA ● low
81.187.231.0/30 MARTIN-HOW RIPE ASSIGNED PA ● low
185.58.156.0/22 Martin Prager trading as "NbIServ" RIPE ALLOCATED PA ● low
194.69.69.132/30 MARTIN-ISP RIPE ASSIGNED PA ● low
217.169.2.4/32 MARTIN-HOW RIPE ASSIGNED PA ● low
217.169.14.239/32 MARTIN-HOW RIPE ASSIGNED PA ● low
2a00:2381:2e3b::/48 MARTIN-J RIPE AGGREGATED-BY-LIR ● low
2a01:4f8:231:1665::/64 MARTIN-ALT RIPE ASSIGNED ● low
2a02:2970::/29 Martin Prager trading as "NbIServ" RIPE ALLOCATED-BY-RIR ● low
2a0a:6040:2e00::/40 Martin Lui RIPE ALLOCATED-BY-LIR ● low

Network trust

what's this?
RPKI hygiene: B how networks compare →
89.5% of checked blocks have valid RPKI ROA coverage (34 of 38)
Possible discrepancies (1)

These blocks are registered to Martin Prager trading as "NbIServ" 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.

2a00:2381:2e3b::/48 /48 authorized for AS2856 — British Telecommunications PLC

NIC Handles

AA AR834 AS43847 BTNET-MNT CLOUDIE-MNT DUMY-RIPE DUMY-RIPE HOS-GUN ISMA-MNT MARTIAN111-MNT NA4181-RIPE NbIServ-MNT +9 more