Autonomous system
AS11595 NETSONIC
Hosting ARIN
Summary
Netsonic
hosting legacy
NETSONIC is Netsonic, a Green Bay, Wisconsin hosting company: shared and dedicated web hosting, cloud and virtual servers, colocation and disaster recovery out of its own local datacentre.
What it's used for
RIS shows 2 announced IPv4 prefixes and 8,192 addresses, no IPv6, and 1 observed neighbour. The two prefixes are clean /20s — 216.235.64.0/20 and 66.180.160.0/20 — each registered to Netsonic itself (NETSONIC, NETSONIC-BLK2). Nothing third-party appears anywhere in the registrant list, so the leased-address shape is absent.
The single neighbour is the load-bearing detail. Two contiguous /20s is enough address space to be mistaken for an access network, but an eyeball ISP or a transit carrier of that size would show more than one BGP adjacency. One upstream, two aggregates, no deaggregation is the profile of a datacentre operator: the addresses are not distributed to subscriber lines, they are handed to servers sitting in one building, so there is no traffic-engineering reason to split the blocks or multi-home aggressively.
Reverse DNS agrees. The sampled address resolves to cl-cp-fw01.netsonic.net — a firewall in the company's own domain, named the way infrastructure is named, not the way subscriber pools are.
Notable
Netsonic has run out of Green Bay since 1996 and today markets colocation, cloud VMs and ASIC-miner hosting. That last line of business is worth knowing when reading traffic from this AS: some of the space is rented compute belonging to third parties, so the holder is a small hosting company even where individual addresses behave like anything a tenant chooses to run.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS40264 | Charter Communications LLC | 126 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 8.19K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11595- Registry name
- NETSONIC
- Registrant
- Netsonic
- Abuse contact
- ip-admin@netsonic.net
- Registered
- 1998-10-15
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS11595
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS11595
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 448 networks and 1,849 prefixes, as published 2026-10-30. 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