AS271201
Vianet 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) São Luís: ATM/MPLA, IX.br (PTT.br) Fortaleza: ATM/MPLA, IX.br (PTT.br) Belém: ATM/MPLA
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 179.49.184.0/22 | 1.0K |
0.0%
|
Vianet Telecomunicacoes Ltda | BR | Maranhão | Imperatriz |
| 179.49.186.0/23 | 512 |
0.0%
|
Vianet Telecomunicacoes Ltda | BR | Maranhão | João Lisboa |
| 131.196.123.0/24 | 256 |
0.0%
|
Vianet Telecomunicacoes Ltda | BR | — | — |
| 179.49.184.0/24 | 256 |
0.0%
|
Vianet Telecomunicacoes Ltda | BR | Maranhão | Imperatriz |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS271201 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 |
|---|---|---|
| 179.49.184.0/24 | 179,710 | 2026-07-31 00:30:58 |
| 179.49.187.0/24 | 177,476 | 2026-07-10 16:29:09 |
| 179.49.186.0/24 | 118,123 | 2026-06-27 13:48:29 |
| 179.49.186.0/23 | 114,300 | 2026-07-31 00:30:58 |
| 179.49.185.0/24 | 35,017 | 2026-07-31 00:30:58 |
| 131.196.123.0/24 | 1,977 | 2026-06-30 12:48:02 |
Frequently Asked Questions
What is AS271201?
AS271201 is an Autonomous System Number assigned to Vianet 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 AS271201 announce?
AS271201 announces 1.3K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS271201?
AS271201 is operated by Vianet Telecomunicacoes Ltda. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS271201 registered in?
AS271201 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
