Autonomous system
AS53167 SEBRATEL TECNOLOGIA LTDA
Residential LACNIC
Summary
Sebratel
isp residential cable brazil
AS53167 is operated by Sebratel Tecnologia Ltda.
What it's used for
- The address space carries residential subscriber traffic, evidenced by reverse DNS entries such as
static.sebratel.psi.brandp-cgn-*.sebratel.psi.br, indicating static IP assignments and carrier-grade NAT gateways. - The AS announces 7424 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, while maintaining 12 observed neighbours; this ratio of address volume to peering partners is characteristic of an access network serving end-users rather than a transit provider.
- Traffic originates from cable and DSL subscribers in Brazil, consistent with the operator's business model as a regional ISP providing broadband connectivity.
Notable
- Registrants for the three largest prefixes (
186.219.128.0/20,177.22.176.0/21,143.202.132.0/22) are all listed as SEBRATEL TECNOLOGIA LTDA, aligning with the AS holder. - The smallest announced prefix,
209.61.9.0/24, is registered to Cogent Communications, LLC with netnameCOGENT-209-61-16, suggesting leased or historically allocated space distinct from the primary Sebratel inventory. - The inventory consists of four distinct IPv4 blocks of varying sizes, ranging from a /20 to a /24, alongside a single /32 IPv6 prefix.
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 | 187.16.214.128 |
| IX.br (PTT.br) Porto Alegre | Porto Alegre, Brazil | 177.52.38.29 |
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 4 prefixes · 7.42K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 5 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
53167- Registry name
- ASN53167
- Registrant
- SEBRATEL TECNOLOGIA LTDA
- Abuse contact
- Serrana Telecom
- Registered
- 2010-07-21
- Last changed
- 2022-11-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 80% valid · 4 valid, 1 with no ROA
- ROAs
- 44 authorising AS53167
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 54 naming AS53167
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 1,784 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