AS28640
VIPWAY 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
- Active-threat / abuse risk −12
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 4 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS28640 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 138.97.220.0/22 | AS28640, AS264209 | 2026-09-17 17:27:01 |
| 189.51.91.0/24 | AS28640, AS264209 | 2026-09-17 17:27:01 |
| 189.51.92.0/23 | AS28640, AS264209 | 2026-09-17 17:27:01 |
| 189.51.94.0/23 | AS28640, AS264209 | 2026-09-17 17:27:01 |
Network profile
Source: PeeringDB →Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 189.51.64.0/20 | 4.1K |
91.4%
|
VIPWAY Telecomunicacoes Ltda | BR | São Paulo | Santos |
| 201.71.224.0/20 | 4.1K |
91.4%
|
VIPWAY Telecomunicacoes Ltda | BR | São Paulo | São Vicente |
| 189.51.80.0/21 | 2.0K |
80.3%
|
VIPWAY Telecomunicacoes Ltda | BR | — | — |
| 189.51.92.0/22 | 1.0K |
69.1%
|
VIPWAY Telecomunicacoes Ltda | BR | São Paulo | São Sebastião |
| 189.51.90.0/23 | 512 |
69.1%
|
VIPWAY Telecomunicacoes Ltda | BR | São Paulo | Ilhabela |
| 189.51.89.0/24 | 256 |
73.4%
|
VIPWAY Telecomunicacoes Ltda | BR | — | — |
| 189.51.90.0/24 | 256 |
71.5%
|
VIPWAY Telecomunicacoes Ltda | BR | São Paulo | Ilhabela |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS28640 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 |
|---|---|---|
| 189.51.90.0/24 | 349,461 | 2026-09-17 17:14:59 |
| 201.71.232.0/21 | 235,888 | 2026-09-17 17:14:59 |
| 201.71.224.0/21 | 235,778 | 2026-09-17 17:14:59 |
| 189.51.72.0/21 | 206,566 | 2026-09-17 17:14:59 |
| 189.51.64.0/21 | 206,290 | 2026-09-17 17:14:59 |
| 201.71.224.0/20 | 204,871 | 2026-09-17 17:23:25 |
| 189.51.64.0/20 | 189,100 | 2026-09-17 17:14:59 |
| 189.51.80.0/21 | 188,744 | 2026-09-17 17:14:59 |
| 189.51.80.0/22 | 184,879 | 2026-09-17 17:14:59 |
| 189.51.84.0/22 | 184,866 | 2026-09-17 17:14:59 |
| 189.51.92.0/23 | 110,886 | 2026-09-17 15:17:22 |
| 189.51.94.0/23 | 110,803 | 2026-09-17 15:17:22 |
| 189.51.91.0/24 | 106,513 | 2026-09-17 15:17:22 |
| 189.51.89.0/24 | 56,853 | 2026-09-17 17:14:59 |
| 201.71.224.0/22 | 49,382 | 2026-09-17 17:06:48 |
| 201.71.228.0/22 | 49,312 | 2026-09-17 17:06:48 |
| 201.71.232.0/22 | 49,266 | 2026-09-17 17:06:48 |
| 201.71.236.0/22 | 49,216 | 2026-09-17 17:06:48 |
| 189.51.72.0/22 | 48,734 | 2026-09-17 17:06:48 |
| 189.51.76.0/22 | 48,585 | 2026-09-17 17:06:48 |
| 189.51.64.0/22 | 48,479 | 2026-09-17 17:06:48 |
| 189.51.68.0/22 | 48,460 | 2026-09-17 17:06:48 |
| 138.97.220.0/22 | 36,510 | 2026-09-17 15:17:21 |
| 189.51.74.0/23 | 10,323 | 2026-09-17 17:06:48 |
| 189.51.84.0/23 | 10,207 | 2026-09-17 17:06:48 |
| 189.51.66.0/23 | 10,111 | 2026-09-17 17:06:48 |
| 189.51.70.0/23 | 10,103 | 2026-09-17 17:06:48 |
| 189.51.72.0/23 | 10,058 | 2026-09-17 17:06:48 |
| 189.51.76.0/23 | 10,058 | 2026-09-17 17:06:48 |
| 201.71.226.0/23 | 9,993 | 2026-09-17 17:06:48 |
| 189.51.80.0/23 | 9,989 | 2026-09-17 17:06:48 |
| 189.51.82.0/23 | 9,983 | 2026-09-17 17:06:48 |
| 201.71.228.0/23 | 9,961 | 2026-09-17 17:06:48 |
| 189.51.78.0/23 | 9,916 | 2026-09-17 17:06:48 |
| 189.51.64.0/23 | 9,913 | 2026-09-17 17:06:48 |
| 189.51.86.0/23 | 9,904 | 2026-09-17 17:06:48 |
| 201.71.232.0/23 | 9,880 | 2026-09-17 17:06:48 |
| 201.71.224.0/23 | 9,855 | 2026-09-17 17:06:48 |
| 201.71.238.0/23 | 9,851 | 2026-09-17 17:06:48 |
| 201.71.234.0/23 | 9,849 | 2026-09-17 17:06:48 |
| 201.71.236.0/23 | 9,810 | 2026-09-17 17:06:48 |
| 201.71.230.0/23 | 9,795 | 2026-09-17 17:06:48 |
| 189.51.68.0/23 | 9,734 | 2026-09-17 17:06:48 |
| 189.51.95.0/24 | 2,983 | 2026-09-17 12:27:01 |
| 189.51.93.0/24 | 2,949 | 2026-09-17 12:25:44 |
| 189.51.92.0/24 | 2,942 | 2026-09-17 12:30:05 |
| 189.51.94.0/24 | 2,922 | 2026-09-17 12:26:23 |
Frequently Asked Questions
What is AS28640?
AS28640 is an Autonomous System Number assigned to VIPWAY 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 AS28640 announce?
AS28640 announces 12.0K IPv4 addresses distributed across 7 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS28640?
AS28640 is operated by VIPWAY Telecomunicacoes Ltda. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS28640 registered in?
AS28640 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
