AS28670
CST-REDEL SERVICOS DE TELECOMUNICACOES LTDA.
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 4 internet exchanges: IX.br (PTT.br) São Paulo: ATM/MPLA, IX.br (PTT.br) Rio de Janeiro: ATM/MPLA, IX.br (PTT.br) Fortaleza: ATM/MPLA, IX.br (PTT.br) Florianópolis: ATM/MPLA
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 189.8.96.0/20 | 4.1K |
0.2%
|
CST SERVICOS DE INFORMATICA E CALL CENTER LTDA. | BR | Santa Catarina | Balneário Camboriú |
| 138.94.220.0/22 | 1.0K |
0.0%
|
CST SERVICOS DE INFORMATICA E CALL CENTER LTDA. | BR | Santa Catarina | Balneário Camboriú |
| 131.72.146.0/24 | 256 |
0.0%
|
CST SERVICOS DE INFORMATICA E CALL CENTER LTDA. | BR | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS28670 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 189.8.96.0/20 | 26,130 | 2026-07-29 14:55:25 |
| 131.72.146.0/23 | 25,485 | 2026-07-29 14:55:25 |
| 138.94.220.0/22 | 25,171 | 2026-07-29 14:55:25 |
| 189.8.96.0/24 | 9,603 | 2026-07-13 06:46:32 |
| 131.72.144.0/22 | 3,216 | 2026-05-29 13:03:32 |
| 189.8.110.0/23 | 2,456 | 2026-06-22 12:34:21 |
| 189.8.108.0/23 | 2,450 | 2026-06-22 12:34:21 |
| 189.8.102.0/23 | 2,447 | 2026-06-22 12:34:21 |
| 189.8.106.0/23 | 2,443 | 2026-06-22 12:34:21 |
| 189.8.104.0/23 | 2,438 | 2026-06-22 12:34:21 |
| 189.8.104.0/21 | 2,429 | 2026-06-22 12:34:10 |
| 189.8.96.0/23 | 2,427 | 2026-06-22 12:34:21 |
| 189.8.96.0/21 | 2,413 | 2026-06-22 12:34:10 |
| 189.8.98.0/23 | 2,413 | 2026-06-22 12:34:21 |
| 189.8.100.0/23 | 2,413 | 2026-06-22 12:34:21 |
Frequently Asked Questions
What is AS28670?
AS28670 is an Autonomous System Number assigned to CST-REDEL SERVICOS DE TELECOMUNICACOES LTDA.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS28670 announce?
AS28670 announces 5.4K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS28670?
AS28670 is operated by CST-REDEL SERVICOS DE TELECOMUNICACOES LTDA.. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS28670 registered in?
AS28670 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
