AS28166
Telecom South America 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 2 internet exchanges: IX.br (PTT.br) Porto Alegre: ATM/MPLA, IX.br (PTT.br) São Paulo: ATM/MPLA
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 177.46.128.0/17 | 32.8K |
3.8%
|
Telecom South America Ltda | BR | São Paulo | São Paulo |
| 187.63.128.0/20 | 4.1K |
39.6%
|
Telecom South America Ltda | BR | — | — |
| 200.236.208.0/20 | 4.1K |
48.3%
|
Telecom South America Ltda | BR | São Paulo | São Paulo |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS28166 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 |
|---|---|---|
| 177.46.149.0/24 | 77,814 | 2026-09-14 22:59:46 |
| 177.46.128.0/24 | 77,603 | 2026-09-14 22:59:46 |
| 177.46.160.0/24 | 72,327 | 2026-09-14 22:59:46 |
| 177.46.161.0/24 | 72,119 | 2026-09-14 22:59:46 |
| 177.46.219.0/24 | 59,275 | 2026-09-14 22:58:38 |
| 177.46.221.0/24 | 59,252 | 2026-09-14 22:58:38 |
| 177.46.222.0/24 | 59,244 | 2026-09-14 22:58:38 |
| 177.46.220.0/24 | 59,228 | 2026-09-14 22:58:38 |
| 177.46.178.0/24 | 59,197 | 2026-09-14 22:58:38 |
| 177.46.218.0/24 | 59,192 | 2026-09-14 22:58:38 |
| 200.236.220.0/24 | 59,181 | 2026-09-14 17:48:14 |
| 177.46.217.0/24 | 59,153 | 2026-09-14 22:58:38 |
| 177.46.168.0/24 | 59,039 | 2026-09-14 22:58:38 |
| 200.236.221.0/24 | 56,973 | 2026-09-14 17:48:14 |
| 177.46.192.0/24 | 55,722 | 2026-09-14 22:56:08 |
| 177.46.193.0/24 | 55,703 | 2026-09-14 22:56:08 |
| 177.46.192.0/23 | 55,592 | 2026-09-14 22:56:08 |
| 200.236.212.0/23 | 55,505 | 2026-09-14 22:56:08 |
| 187.63.130.0/24 | 55,469 | 2026-09-14 17:48:14 |
| 200.236.212.0/24 | 55,432 | 2026-09-14 22:56:08 |
| 177.46.200.0/24 | 55,429 | 2026-09-14 22:56:08 |
| 177.46.200.0/23 | 55,396 | 2026-09-14 22:56:08 |
| 177.46.202.0/24 | 55,369 | 2026-09-14 22:56:08 |
| 177.46.195.0/24 | 55,341 | 2026-09-14 22:56:08 |
| 177.46.201.0/24 | 55,329 | 2026-09-14 22:56:08 |
| 177.46.202.0/23 | 55,329 | 2026-09-14 22:56:08 |
| 177.46.199.0/24 | 55,326 | 2026-09-14 22:56:08 |
| 177.46.203.0/24 | 55,306 | 2026-09-14 22:56:08 |
| 177.46.198.0/24 | 55,301 | 2026-09-14 22:56:08 |
| 177.46.198.0/23 | 55,174 | 2026-09-14 22:56:08 |
| 187.63.141.0/24 | 54,395 | 2026-09-14 17:48:14 |
| 187.63.131.0/24 | 54,217 | 2026-09-14 17:48:14 |
| 187.63.128.0/24 | 54,159 | 2026-09-14 17:48:14 |
| 187.63.129.0/24 | 54,107 | 2026-09-14 17:48:14 |
| 187.63.133.0/24 | 54,017 | 2026-09-14 22:56:08 |
| 177.46.163.0/24 | 53,910 | 2026-09-14 22:56:08 |
| 187.63.139.0/24 | 53,558 | 2026-09-14 17:48:14 |
| 177.46.128.0/17 | 53,323 | 2026-09-14 22:56:08 |
| 200.236.208.0/20 | 53,269 | 2026-09-14 22:56:08 |
| 187.63.128.0/20 | 53,191 | 2026-09-14 22:56:08 |
| 177.46.204.0/24 | 51,243 | 2026-09-14 22:58:38 |
| 177.46.204.0/23 | 51,207 | 2026-09-14 22:58:38 |
| 187.63.140.0/24 | 46,175 | 2026-09-14 17:48:14 |
| 177.46.171.0/24 | 44,112 | 2026-08-03 14:55:52 |
| 177.46.174.0/23 | 36,195 | 2026-08-03 14:55:52 |
| 177.46.205.0/24 | 36,093 | 2026-08-03 14:55:52 |
| 177.46.166.0/24 | 30,092 | 2026-09-14 22:58:38 |
| 177.46.208.0/23 | 29,770 | 2026-09-14 22:58:38 |
| 177.46.212.0/23 | 29,747 | 2026-09-14 22:58:38 |
| 177.46.214.0/23 | 29,690 | 2026-09-14 22:58:38 |
Showing top 50 of 107 announced prefixes by sample volume.
Frequently Asked Questions
What is AS28166?
AS28166 is an Autonomous System Number assigned to Telecom South America 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 AS28166 announce?
AS28166 announces 41.0K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS28166?
AS28166 is operated by Telecom South America Ltda. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS28166 registered in?
AS28166 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
