AD HOC BEHEER BV

AD_HOC_BEHEER_BV

Registry

Cluster stats

Netblocks	6
All fragments	29 blocks across 14 clusters
Cluster ID	205396456
Registry	RIPE
Customers	find customers using this network →

Evidence & provenance ?

Attribution	Registry record
Shared handles	clustered on 3 shared RIR contact/maintainer handles
Registry names	1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

5 weekly snapshots · JSON

6 0 netblocks since 2026-07-05

2026-07-05 peak 6 2026-07-19

IP Ranges (6)

⬇ export CSV

CIDR	Org name	Registry	Status	Confidence
80.242.254.252/30	AD_HOC_BEHEER_BV	RIPE	ASSIGNED PA	● low
213.34.10.200/30	AD_HOC_BEHEER_BV	RIPE	ASSIGNED PA	● low
213.125.229.156/30	AD_HOC_BEHEER_BV	RIPE	ASSIGNED PA	● low
2001:41f0:af0::/48	AD_HOC_BEHEER_BV	RIPE	ASSIGNED	● low
2001:41f0:8d02::/48	AD_HOC_BEHEER_BV	RIPE	ASSIGNED	● low
2001:41f0:9b12::/48	AD_HOC_BEHEER_BV	RIPE	ASSIGNED	● low

Possibly related to this organisation

what's this?

Same name family

Separately-registered clusters whose names share “AD HOC” — 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.

AD-HOC-BEST-SERVICES-POESSNECK-NET 3 blocks
Ad Hoc Software Pty. Ltd. 3 blocks
AD-HOC-NETWORK 2 blocks
AD-HOC-HOLDING 2 blocks
AD-HOC-BEST-SERVICE-NET 2 blocks
AD-HOC-BAUWERK--NET 2 blocks
AD-HOC-APPLIED-INFORMATICS 2 blocks
AD-HOC-RESEARCH 2 blocks

Combined view of all 14 name-family clusters →

Network trust

what's this?

RPKI hygiene: A how networks compare →

100.0% of checked blocks have valid RPKI ROA coverage (6 of 6)

Possible discrepancies (3)

These blocks are registered to AD HOC BEHEER BV 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.

2001:41f0:af0::/48 /48	authorized for AS33915 — Vodafone Libertel B.V.
2001:41f0:8d02::/48 /48	authorized for AS33915 — Vodafone Libertel B.V.
2001:41f0:9b12::/48 /48	authorized for AS33915 — Vodafone Libertel B.V.

NIC Handles

DUMY-RIPE DUMY-RIPE ZIGGO-AUTOREG1