Fundaments B.V.

Data as of 2026-07-26
BGP inherited
Cluster stats
Netblocks53 · 34,566 IPv4 addresses
IPv6 13 prefixes (largest 2a02:ac40::/29)
Cluster ID213267257
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 26 shared RIR contact/maintainer handles
Registry names 6 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
79 -1 netblocks since 2026-07-05
2026-07-05 peak 80 2026-07-26

IP Ranges (53)

showing 50 of 53 — see all — ⬇ export CSV
CIDR Org name Registry Status Confidence
5.172.40.0/21 Fundaments B.V. BGP ANNOUNCED ● high
31.200.208.0/21 Fundaments B.V. BGP ANNOUNCED ● high
37.220.168.0/21 Fundaments B.V. BGP ANNOUNCED ● high
45.13.164.0/22 Fundaments B.V. BGP ANNOUNCED ● high
45.133.196.0/22 Fundaments B.V. BGP ANNOUNCED ● high
45.146.124.0/22 Fundaments B.V. BGP ANNOUNCED ● high
46.19.216.0/21 Fundaments B.V. BGP ANNOUNCED ● high
46.226.88.0/21 Fundaments B.V. BGP ANNOUNCED ● high
78.31.112.0/21 Fundaments B.V. BGP ANNOUNCED ● high
80.249.212.107/32 Fundaments PEERINGDB ASSIGNED ● high
85.209.108.0/22 Fundaments B.V. BGP ANNOUNCED ● high
88.218.152.0/22 Fundaments B.V. BGP ANNOUNCED ● high
91.197.72.0/22 Fundaments B.V. BGP ANNOUNCED ● high
91.210.127.0/24 Fundaments B.V. BGP ANNOUNCED ● high
91.218.148.0/22 Fundaments B.V. BGP ANNOUNCED ● high
91.224.248.0/23 Fundaments B.V. BGP ANNOUNCED ● high
91.234.193.0/24 Fundaments B.V. BGP ANNOUNCED ● high
93.186.176.0/20 Fundaments B.V. BGP ANNOUNCED ● high
185.1.32.90/32 Fundaments PEERINGDB ASSIGNED ● high
185.1.160.212/32 Fundaments PEERINGDB ASSIGNED ● high
185.1.222.35/32 Fundaments PEERINGDB ASSIGNED ● high
185.41.136.0/22 Fundaments B.V. BGP ANNOUNCED ● high
185.46.64.0/22 Fundaments B.V. BGP ANNOUNCED ● high
185.51.56.0/22 Fundaments B.V. BGP ANNOUNCED ● high
185.52.60.0/22 Fundaments B.V. BGP ANNOUNCED ● high
185.113.84.0/22 Fundaments B.V. BGP ANNOUNCED ● high
185.122.116.0/22 Fundaments B.V. BGP ANNOUNCED ● high
185.157.145.0/24 Fundaments B.V. BGP ANNOUNCED ● high
185.202.253.0/24 Fundaments B.V. BGP ANNOUNCED ● high
185.202.254.0/24 Fundaments B.V. BGP ANNOUNCED ● high
193.37.204.0/22 Fundaments B.V. BGP ANNOUNCED ● high
193.108.98.165/32 Fundaments PEERINGDB ASSIGNED ● high
193.187.188.0/22 Fundaments B.V. BGP ANNOUNCED ● high
193.239.117.3/32 Fundaments PEERINGDB ASSIGNED ● high
194.9.85.0/24 Fundaments B.V. BGP ANNOUNCED ● high
194.213.112.0/23 Fundaments B.V. BGP ANNOUNCED ● high
213.249.72.0/24 Fundaments B.V. BGP ANNOUNCED ● high
2001:7f8:1::a502:559:1/128 Fundaments PEERINGDB ASSIGNED ● high
2001:7f8:e::2:559:1/128 Fundaments PEERINGDB ASSIGNED ● high
2001:7f8:13::a502:559:1/128 Fundaments PEERINGDB ASSIGNED ● high
2001:7f8:8f::a502:559:1/128 Fundaments PEERINGDB ASSIGNED ● high
2001:7f8:b7::a502:559:1/128 Fundaments PEERINGDB ASSIGNED ● high
2001:7f8:10f::504f:212/128 Fundaments PEERINGDB ASSIGNED ● high
2a00:d10::/32 Fundaments B.V. BGP ANNOUNCED ● high
2a00:d1c0::/32 Fundaments B.V. BGP ANNOUNCED ● high
2a01:448:72::/48 Fundaments B.V. BGP ANNOUNCED ● high
2a02:ac40::/29 Fundaments B.V. BGP ANNOUNCED ● high
2a03:3400::/32 Fundaments B.V. BGP ANNOUNCED ● high
2a06:6940::/29 Fundaments B.V. BGP ANNOUNCED ● high
2a07:3502:1160::/48 Fundaments B.V. BGP ANNOUNCED ● high

IPv6 ranges (13)

CIDR
2a02:ac40::/29
2a06:6940::/29
2a00:d10::/32
2a00:d1c0::/32
2a03:3400::/32
2a01:448:72::/48
2a07:3502:1160::/48
2001:7f8:10f::504f:212/128
2001:7f8:13::a502:559:1/128
2001:7f8:1::a502:559:1/128
2001:7f8:8f::a502:559:1/128
2001:7f8:b7::a502:559:1/128
2001:7f8:e::2:559:1/128

Network trust

what's this?
RPKI hygiene: B how networks compare →
91.1% of checked blocks have valid RPKI ROA coverage (72 of 79)
No discrepancies found among checked blocks.

NIC Handles

AS20559 AS20559 BIT-MNT DATABYTE-HOSTING-MNT DOTXS-MNT DUMY-RIPE DUMY-RIPE Fundaments-MNT Fundaments-MNT INTERRACKS-MNT MNT-NGNETWORKS MNT-SPOTLER +14 more