Fiber One Telecomunicações EIRELI — IP ranges & network footprint

Footprint over time

5 weekly snapshots · JSON

18 +12 netblocks since 2026-07-05

2026-07-05 peak 18 2026-07-19

IP Ranges (2)

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CIDR	Org name	Registry	Status	Confidence
45.230.166.0/23	Fiber One Telecomunicações EIRELI	BGP	ANNOUNCED	● medium
45.230.164.0/22	Fiber One Telecomunicações EIRELI	ARIN	ALLOCATED	● low

Possibly related to this organisation

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Same name family

Separately-registered clusters whose names share “Fiber One” — 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.

Fiber One (SL) LIMITED 41 blocks
FIBER ONE LTD. 3 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.

Fiberstruct Strazske via SWAN, a.s. sub-allocation
Fiber At Net 101 via Innsbrucker Kommunalbetriebe AG sub-allocation
Fiber At Net 102 via Innsbrucker Kommunalbetriebe AG sub-allocation
Fibernoord Regio Leek A7 via OSSO B.V. sub-allocation
Localen-Fiber-Cusstomers via M247 Europe SRL sub-allocation
Dumfries-Fiber via Netia SA sub-allocation
Fiber via comtrance service GmbH sub-allocation
Xfiber Cust Byfjlege via GLOBALCONNECT AS sub-allocation

NIC Handles

27871759000104 AS267201 CASOV2 FOTEI FOTEI p127

Netblocks	2 · 1,024 IPv4 addresses
All fragments	46 blocks across 3 clusters
Cluster ID	222945474
Registry	BGP
Customers	find customers using this network →

Attribution	BGP parent (inherited)
Shared handles	clustered on 6 shared RIR contact/maintainer handles
Registry names	2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue