Commensus Limited

BGP inherited

Cluster stats

Netblocks	7 · 1,802 IPv4 addresses
All fragments	16 blocks across 10 clusters
Cluster ID	209448908
Registry	BGP
Customers	find customers using this network →

Evidence & provenance ?

Attribution	BGP parent (inherited)
Shared handles	clustered on 11 shared RIR contact/maintainer handles
Registry names	4 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

5 weekly snapshots · JSON

7 0 netblocks since 2026-07-05

2026-07-05 peak 7 2026-07-19

IP Ranges (7)

⬇ export CSV

CIDR	Org name	Registry	Status	Confidence
91.205.248.0/22	Commensus Limited	RIPE	ASSIGNED PI	● high
91.205.249.0/24	Commensus Limited	BGP	ANNOUNCED	● high
91.205.250.0/24	Commensus Limited	BGP	ANNOUNCED	● high
91.205.251.0/24	Commensus Limited	BGP	ANNOUNCED	● high
80.69.19.16/29	COMMENSUS	RIPE	ASSIGNED PA	● low
80.69.19.24/29	COMMENSUS	RIPE	ASSIGNED PA	● low
2a00:2381:ca62::/48	COMMENSUS-PLC	RIPE	AGGREGATED-BY-LIR	● low

Possibly related to this organisation

what's this?

Same name family

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

Combined view of all 10 name-family clusters →

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.

COMMENSUS-PLC-LAN-25354 via Spitfire Network Services Limited sub-allocation
COMMENSUS-PLC-LAN-25356 via Spitfire Network Services Limited sub-allocation
COMMENSUS-PLC-LAN-25378 via Spitfire Network Services Limited sub-allocation
COMMENSUS-PLC-LAN-25373 via Spitfire Network Services Limited sub-allocation
COMMENSUS-PLC-LAN-25377 via Spitfire Network Services Limited sub-allocation
COMMENSUS-PLC-LAN-25363 via Spitfire Network Services Limited sub-allocation
COMMENSUS-PLC-LAN-25382 via Spitfire Network Services Limited sub-allocation
COMMENSUS-PLC-LAN-25393 via Spitfire Network Services Limited sub-allocation

Network trust

what's this?

RPKI hygiene: D how networks compare →

42.9% of checked blocks have valid RPKI ROA coverage (3 of 7)

Possible discrepancies (1)

These blocks are registered to Commensus Limited 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:ca62::/48 /48

authorized for AS2856 — British Telecommunications Limited

NIC Handles

AS50743 BTNET-MNT COGENT-HM-MNT COLT-UK DUMY-RIPE DUMY-RIPE EQUINIX-MNT ORG-CA939-RIPE RIPE-NCC-END-MNT commensus-mnt commensus-mnt