HAMMERSON

BGP inherited

Cluster stats

Netblocks	6
All fragments	32 blocks across 7 clusters
Cluster ID	204778577
Registry	RIPE
Customers	find customers using this network →

Evidence & provenance ?

Attribution	BGP parent (inherited)
Shared handles	clustered on 4 shared RIR contact/maintainer handles
Registry names	2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

4 weekly snapshots · JSON

6 0 netblocks since 2026-07-05

2026-07-05 peak 6 2026-07-13

IP Ranges (6)

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CIDR	Org name	Registry	Status	Confidence
62.172.63.16/31	HAMMERSON	RIPE	ASSIGNED PA	● low
212.42.12.64/28	HAMMERSON	RIPE	ASSIGNED PA	● low
2a00:2381:f696::/48	HAMMERSON	RIPE	AGGREGATED-BY-LIR	● low
2a00:2381:ff73::/48	HAMMERSON-PLC	RIPE	AGGREGATED-BY-LIR	● low
2a00:2381:ff73::/56	HAMMERSON-PLC	RIPE	ASSIGNED	● low
2a00:2381:ff73:200::/56	HAMMERSON	RIPE	ASSIGNED	● low

Possibly related to this organisation

what's this?

Same name family

Separately-registered clusters whose names share “HAMMERSON” — 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.

HAMMERSON-PLC 15 blocks
HAMMERSON-FRANCE-SAS 4 blocks
HAMMERSON-GROUP-MANAGEMENT-LIMITED 3 blocks
HAMMERSON-NETS 2 blocks
HAMMERSON-FRANCE 1 blocks
HAMMERSON-UK 1 blocks

Sub-allocations under carriers

IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own naming convention, not a direct registration.

Hammerson France Co Sunguard via COLT Technology Services Group Limited sub-allocation
Hammersons sub-allocation
HAMMERSON-UK via Vodafone Group PLC sub-allocation
Hammerson Contact via COLT Technology Services Group Limited sub-allocation

Network trust

what's this?

RPKI hygiene: A how networks compare →

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

No discrepancies found among checked blocks.

NIC Handles

ALICE-MNT BTNET-MNT DUMY-RIPE DUMY-RIPE