Autonomous system
AS28642 Contato Internet EIRELI
Unclassified LACNIC NSP
Summary
Contato Internet
isp residential brazil regional
AS28642 is operated by Contato Internet.
What it's used for
- The address space carries residential and business internet access, evidenced by reverse DNS records pointing to
contato.net(e.g.,179-108-165-254.contato.net). - The AS announces 10,240 IPv4 addresses across 15 prefixes and 51 IPv6 prefixes, while maintaining 44 observed neighbours; this ratio of moderate address space against a significant number of peers suggests a regional access provider with transit relationships.
Notable
- All registrants in the RDAP data are listed as
Contato Internet Ltda, which aligns with the AS holder nameContato Internet EIRELIin the inventory. - The address inventory is subdivided into multiple /22, /23, and /24 blocks within the 179.108.0.0/16, 168.228.0.0/16, 170.246.0.0/16, and 201.76.0.0/16 ranges.
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 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.209.150 |
| IX.br (PTT.br) Porto Alegre | Porto Alegre, Brazil | 177.52.38.191 |
| IX.br (PTT.br) Curitiba | Curitiba, Brazil | 45.184.146.91 |
| IX.br (PTT.br) Florianópolis | Florianópolis, Brazil | 200.219.141.58 |
Transit providers
6 upstream, 12 downstream and 32 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 15 prefixes · 10.24K addresses IPv6 51 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 66 |
Registry
Allocation record
- Registry
- LACNIC
- Registered
- 2006-04-19
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Contato Internet
- Also known as
- Contato Internet
- Network type
- NSP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
RADB::AS-CONTATO- Present at
- 4 exchanges
- Facilities
- 3 facilities
- Website
- http://www.contato.net
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
- 98% valid · 54 valid, 1 with no ROA
- ROAs
- 5 authorising AS28642
- ASPA
- no ASPA record
- IRR
- 98% registered · 54 of 55 announcements
- Route objects
- 70 naming AS28642
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: 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