DUFFY GROUP PLC

DUFFY-GROUP-PLC

Registry

Cluster stats

Netblocks	8
All fragments	13 blocks across 6 clusters
Cluster ID	209056873
Registry	RIPE
Customers	find customers using this network →

Evidence & provenance ?

Attribution	Registry record
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

5 weekly snapshots · JSON

8 0 netblocks since 2026-07-05

2026-07-05 peak 8 2026-07-19

IP Ranges (8)

⬇ export CSV

CIDR	Org name	Registry	Status	Confidence
80.168.217.224/29	DUFFY-GROUP-PLC	RIPE	ASSIGNED PA	● low
212.49.252.224/29	DUFFY-GROUP-PLC	RIPE	ASSIGNED PA	● low
212.49.253.208/29	DUFFY-GROUP-PLC	RIPE	ASSIGNED PA	● low
212.169.57.104/29	DUFFY-GROUP-PLC	RIPE	ASSIGNED PA	● low
212.188.218.224/29	DUFFY-GROUP-PLC	RIPE	ASSIGNED PA	● low
212.188.229.16/29	DUFFY-GROUP-PLC	RIPE	ASSIGNED PA	● low
212.188.237.232/29	DUFFY-GROUP-PLC	RIPE	ASSIGNED PA	● low
2a00:2381:1337::/48	DUFFY-GROUP-LTD	RIPE	AGGREGATED-BY-LIR	● low

Possibly related to this organisation

what's this?

Same name family

Separately-registered clusters whose names share “DUFFY GROUP PLC” — 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.

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.

DUFFY-GROUP-PLC-8 via Claranet Limited sub-allocation
DUFFY-GROUP-PLC-2109 via Claranet Limited sub-allocation
DUFFY-GROUP-PLC-182448 via Claranet Limited sub-allocation
DUFFY-GROUP-PLC-192593 via Claranet Limited sub-allocation
DUFFY-GROUP-PLC-09 via Claranet Limited sub-allocation
CIARANOCLEIRLGHDUFFYGROUPLTD via Eircom Limited sub-allocation
DUFFYGROUPLTD via Eircom Limited sub-allocation
DUFFYGROUPLTD1 via Eircom Limited sub-allocation

Network trust

what's this?

RPKI hygiene: A how networks compare →

100.0% of checked blocks have valid RPKI ROA coverage (8 of 8)

Possible discrepancies (1)

These blocks are registered to DUFFY GROUP PLC 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.

2a00:2381:1337::/48 /48

authorized for AS2856 — British Telecommunications Limited

NIC Handles

AS8426-MNT BTNET-MNT DUMY-RIPE DUMY-RIPE