Autonomous system
AS47172 GREENHOST
Residential RIPE
Summary
Open Fiber
isp residential eyeball fiber
Open Fiber is Italy's wholesale-only FTTH network operator, building fibre-to-the-home across the country and selling access to retail ISPs rather than to end users directly.
What it's used for
- Fibre home broadband in Italy: the physical FTTH access that consumer ISPs resell to households.
Notable
- An "eyeball" access network: addresses reached over this fibre are home connections, not servers, even though Open Fiber itself is a wholesale operator and not a retail brand.
- Owned by the Italian state investment arm (CDP) alongside institutional infrastructure investors; built as a competitor to the incumbent's copper/fibre network.
Interesting
- Part of Italy's national broadband plan to bring open-access fibre to smaller towns and rural "white areas" that retail carriers had left behind.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 4 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.211.78 |
| Neutral Internet Exchange | Amsterdam, Netherlands | 2001:7f8:13::a504:7172:1 |
| ERA-IX Amsterdam | Amsterdam, Netherlands | 185.1.240.96 |
| ERA-IX Frankfurt | Frankfurt, Germany | 185.0.27.58 |
Transit providers
14 upstream, 2 downstream and 33 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 19 prefixes · 9.98K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 20 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS47172- Registry name
- Greenhost
- Registrant
- GREENHOST
- Abuse contact
- abuse@greenhost.nl
- Registered
- 2008-05-09
- Last changed
- 2026-01-29
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 32 valid, 0 with no ROA
- ROAs
- 32 authorising AS47172
- ASPA
- no ASPA record
- IRR
- 100% registered · 32 of 32 announcements
- Route objects
- 44 naming AS47172
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,775 prefixes, as published 2026-10-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere