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
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: IX.br (PTT.br) São Paulo: ATM/MPLA
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 191.53.0.0/16 | 65.5K |
98.0%
|
MASTER S/A | BR | São Paulo | Taubaté |
| 177.44.0.0/17 | 32.8K |
98.4%
|
MASTER S/A | BR | Minas Gerais | Montes Claros |
| 191.240.0.0/17 | 32.8K |
98.2%
|
MASTER S/A | BR | São Paulo | São José dos Campos |
| 177.130.128.0/18 | 16.4K |
98.5%
|
MASTER S/A | BR | Minas Gerais | Montes Claros |
| 186.216.64.0/18 | 16.4K |
98.4%
|
MASTER S/A | BR | Minas Gerais | Itaúna |
| 187.44.0.0/18 | 16.4K |
98.4%
|
MASTER S/A | BR | Minas Gerais | Montes Claros |
| 187.120.64.0/18 | 16.4K |
98.4%
|
MASTER S/A | BR | Minas Gerais | Paracatu |
| 179.189.160.0/19 | 8.2K |
98.3%
|
MASTER S/A | BR | Minas Gerais | Itajubá |
| 189.91.0.0/19 | 8.2K |
98.2%
|
MASTER S/A | BR | Minas Gerais | Divinópolis |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS28202 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 |
|---|---|---|
| 191.240.8.0/22 | 265,578 | 2026-11-14 04:07:04 |
| 177.44.96.0/22 | 154,367 | 2026-11-14 03:58:04 |
| 177.130.160.0/22 | 149,184 | 2026-11-14 03:57:03 |
| 191.53.16.0/21 | 149,137 | 2026-11-14 03:58:04 |
| 191.53.16.0/22 | 148,962 | 2026-11-14 03:58:04 |
| 191.53.116.0/22 | 148,818 | 2026-11-14 03:57:03 |
| 191.53.20.0/22 | 148,573 | 2026-11-14 03:58:04 |
| 177.44.24.0/22 | 148,171 | 2026-11-14 03:57:03 |
| 191.53.192.0/21 | 134,029 | 2026-11-14 03:57:03 |
| 191.53.200.0/21 | 133,907 | 2026-11-14 04:07:04 |
| 191.53.192.0/20 | 133,750 | 2026-11-14 03:57:03 |
| 191.53.196.0/22 | 133,686 | 2026-11-14 04:07:04 |
| 191.53.56.0/22 | 133,679 | 2026-11-14 04:07:04 |
| 191.53.200.0/22 | 133,654 | 2026-11-14 03:57:03 |
| 191.53.204.0/22 | 133,550 | 2026-11-14 03:57:03 |
| 191.53.192.0/22 | 133,515 | 2026-11-14 03:57:03 |
| 191.240.0.0/17 | 110,780 | 2026-11-14 08:50:05 |
| 191.53.0.0/16 | 110,581 | 2026-11-14 08:50:05 |
| 179.189.160.0/19 | 110,534 | 2026-11-14 08:50:05 |
| 177.130.128.0/19 | 110,176 | 2026-11-14 08:50:05 |
| 177.130.160.0/19 | 109,748 | 2026-11-14 08:50:05 |
| 187.44.0.0/18 | 109,665 | 2026-11-14 08:50:05 |
| 189.91.0.0/19 | 109,565 | 2026-11-14 08:50:05 |
| 177.44.0.0/17 | 108,288 | 2026-11-14 08:50:05 |
| 191.53.128.0/21 | 103,598 | 2026-11-14 03:57:03 |
| 187.120.88.0/22 | 101,168 | 2026-11-14 03:58:04 |
| 191.53.128.0/22 | 100,578 | 2026-11-14 03:57:03 |
| 177.130.168.0/22 | 96,248 | 2026-11-14 03:58:04 |
| 177.44.92.0/22 | 93,654 | 2026-11-14 03:57:03 |
| 191.53.132.0/22 | 92,080 | 2026-11-14 03:57:03 |
| 177.44.88.0/22 | 90,374 | 2026-11-14 03:57:03 |
| 186.216.111.0/24 | 89,384 | 2026-11-13 10:43:36 |
| 187.120.64.0/18 | 88,851 | 2026-11-14 08:50:05 |
| 186.216.64.0/18 | 86,115 | 2026-11-14 08:50:05 |
| 186.216.100.0/22 | 85,599 | 2026-11-14 04:07:04 |
| 177.44.56.0/22 | 85,506 | 2026-11-14 03:58:04 |
| 191.53.160.0/22 | 85,445 | 2026-11-14 03:57:03 |
| 177.44.56.0/21 | 85,262 | 2026-11-14 04:07:04 |
| 177.44.48.0/21 | 85,052 | 2026-11-14 03:58:04 |
| 177.44.48.0/22 | 84,926 | 2026-11-14 03:57:03 |
| 191.53.176.0/21 | 84,825 | 2026-11-14 03:58:04 |
| 191.53.76.0/22 | 82,807 | 2026-11-14 04:07:04 |
| 187.120.120.0/21 | 82,133 | 2026-11-14 03:57:03 |
| 187.120.120.0/22 | 82,074 | 2026-11-14 03:57:03 |
| 191.53.112.0/22 | 81,915 | 2026-11-14 04:07:04 |
| 191.240.120.0/21 | 81,828 | 2026-11-14 03:58:04 |
| 191.53.168.0/22 | 81,730 | 2026-11-14 04:07:04 |
| 177.44.28.0/22 | 81,706 | 2026-11-14 04:07:04 |
| 177.130.136.0/22 | 81,616 | 2026-11-14 03:57:03 |
| 191.240.44.0/22 | 81,592 | 2026-11-14 03:57:03 |
Showing top 50 of 1,207 announced prefixes by sample volume.
Frequently Asked Questions
What is AS28202?
AS28202 is an Autonomous System Number assigned to MASTER S/A. 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 AS28202 announce?
AS28202 announces 213.0K IPv4 addresses distributed across 9 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS28202?
AS28202 is operated by MASTER S/A. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS28202 registered in?
AS28202 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
