Autonomous system
AS52851 CTA INTERNET LTDA
Unclassified LACNIC
Summary
CTA Internet
isp residential brazil
AS52851 is operated by CTA Internet Ltda.
What it's used for
- The address space carries residential internet access, evidenced by the reverse DNS entries pointing to
ctainternet.com.br. - The network announces 1024 IPv4 addresses across 1 prefix and 9 IPv6 prefixes, with only 2 observed routing neighbours, indicating a regional access provider rather than a transit hub.
- Traffic from this AS consists of subscriber eyeballs for residential users in Brazil, consistent with the operator's role as a regional ISP.
Notable
- The RDAP registrant
CTA INTERNET LTDAmatches the AS holder, confirming consistent ownership of the announced space. - The inventory consists of a single IPv4 block and a set of IPv6 prefixes, all located in Brazil.
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 |
|---|---|---|
| IX.br (PTT.br) Porto Alegre | Porto Alegre, Brazil | 177.52.38.114 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 1.02K addresses IPv6 9 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 10 |
Registry
Allocation record
- Registry
- LACNIC
- Registered
- 2011-10-26
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 2 authorising AS52851
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 7 naming AS52851
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 1,768 prefixes, as published 2026-10-12. 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