Autonomous system
AS61729 CB NET TELECOM LTDA
Residential LACNIC Cable/DSL/ISP
Summary
CB Net Telecom
isp residential cable dsl
AS61729 is operated by CB Net Telecom LTDA.
What it's used for
- The address space carries residential broadband traffic, evidenced by reverse DNS records such as
r-45-168.129-000.cbnet.inf.branddns2.cbnet.inf.br. - The network announces 2048 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 23 observed neighbours; this ratio indicates a local access provider rather than a transit carrier.
- Traffic consists of subscriber eyeballs for cable and DSL services in the Casa Branca, São Paulo region.
Notable
- The registrant for the 45.168.128.0/22 prefix is CB NET TELECOM LTDA, matching the AS holder.
- The address inventory consists of two /22 blocks in the 45.168.0.0/16 and 131.0.0.0/8 ranges, typical of regional ISP allocations.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.218.35 |
| IX.br (PTT.br) Porto Alegre | Porto Alegre, Brazil | 177.52.38.206 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-22, 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 · 2.05K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 3 |
Registry
Allocation record
- Registry
- LACNIC
- Registered
- 2014-08-04
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- CB NET TELECOM
- Network type
- Cable/DSL/ISP
- Scope
- South America
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- IRR as-set
AS61729- Present at
- 3 exchanges
- Facilities
- 1 facilities
- Website
- http://www.cbnet.inf.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
- 0% valid · 0 valid, 10 with no ROA
- ROAs
- 0 authorising AS61729
- ASPA
- no ASPA record
- IRR
- 70% registered · 7 of 10 announcements 3 other origin
- Route objects
- 18 naming AS61729
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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 1,779 prefixes, as published 2026-10-23. 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