Autonomous system
AS22128 Defferrari Solucoes em Internet Ltda
Unclassified AFRINIC Cable/DSL/ISP
Summary
DSI Internet
isp residential cable dsl
AS22128 is operated by Defferrari Solucoes em Internet Ltda, commonly known as DSI Internet.
What it's used for
- The address space carries residential and business connectivity, evidenced by reverse DNS records pointing to
rev.dsi.net.brand the operator's self-identification as a Cable/DSL/ISP. - The AS announces 4608 IPv4 addresses across 2 prefixes while maintaining only 1 observed neighbour, a ratio that indicates an access or eyeball network rather than a transit provider.
Notable
- The registrants for both announced prefixes,
200.160.144.0/20and186.251.214.0/23, match the AS holder, Defferrari Solucoes em Internet Ltda. - The address inventory consists of two distinct IPv4 blocks located in Brazil, with no IPv6 prefixes currently announced in the inventory.
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 |
|---|---|---|
| AS28605 | Defferrari Informatica Ltda. | 479 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 · 4.61K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 2 |
Registry
Allocation record
- Registry
- AFRINIC
- Handle
22128- Registry name
- ASN22128
- Registrant
- Defferrari Solucoes em Internet Ltda
- Abuse contact
- Marco Defferrari
- Registered
- 2001-08-13
- Last changed
- 2024-06-13
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- DSI Internet - AS22128
- Also known as
- DSI Internet
- Network type
- Cable/DSL/ISP
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- IRR as-set
AS22128:AS-DSI- Website
- https://www.dsi.net.br
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 8 valid, 0 with no ROA
- ROAs
- 3 authorising AS22128
- ASPA
- no ASPA record
- IRR
- 88% registered · 7 of 8 announcements
- Route objects
- 32 naming AS22128
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: 442 networks and 1,784 prefixes, as published 2026-10-19. 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