Autonomous system
AS51616 WINDSLSRL-AS
Unclassified RIPE
Summary
Windsl S.r.l.
isp residential italy dsl
WINDSLSRL-AS is operated by Windsl S.r.l., an Italian internet service provider based in Vercelli.
What it's used for
- The address space carries residential and business access traffic, evidenced by reverse DNS entries such as
host-254-226-9-45-static.windsl.itandhost-254-182-61-185-dynamic.windsl.it, which indicate static and dynamic IP assignments for end-user connections. - The AS announces 3,840 IPv4 addresses across 5 prefixes and maintains 10 observed neighbours, a ratio consistent with an access network providing connectivity to subscribers rather than a transit provider.
- Traffic from this AS consists of subscriber eyeballs and small business endpoints, reflecting Windsl S.r.l.'s role as a regional ISP serving the Vercelli area and surrounding regions in Italy.
Notable
- Registrants for the majority of prefixes are Windsl S.r.l., with netnames like
IT-WINDSL-SRL-20190423andWINDSL-SRL-NET; however, the prefix92.119.48.0/22is registered toCLOUD SEMPLICE S.R.L.under netnameIT-CLOUDSEMPLICE-20190311, suggesting leased or transferred address space. - The inventory includes a mix of /22, /23, and /24 blocks, with the largest being
45.9.224.0/22,92.119.48.0/22, and185.61.180.0/22, indicating a moderately sized but fragmented address estate typical of regional ISPs.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Torino Piemonte Exchange Point | Torino, Italy | 194.116.96.67 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 3.84K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| IT | Italy | 5 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS51616- Registry name
- WINDSLSRL-AS
- Registrant
- it-windsl-srl-1-mnt
- Abuse contact
- abuse@windsl.it
- Registered
- 2010-10-08
- Last changed
- 2018-10-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 9 authorising AS51616
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 8 naming AS51616
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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