AS266475
SEM FRONTEIRAS 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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 2 internet exchanges: IX.br (PTT.br) Rio Branco, IX.br (PTT.br) São Paulo: ATM/MPLA
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 38.191.48.0/20 | 4.1K |
95.8%
|
SEM FRONTEIRAS TELECOMUNICACOES LTDA | US | — | — |
| 38.9.112.0/22 | 1.0K |
24.2%
|
SEM FRONTEIRAS TELECOMUNICACOES LTDA | US | — | — |
| 38.56.72.0/22 | 1.0K |
24.8%
|
SEM FRONTEIRAS TELECOMUNICACOES LTDA | US | — | — |
| 170.83.172.0/22 | 1.0K |
63.1%
|
SEM FRONTEIRAS TELECOMUNICACOES LTDA | BR | Acre | Rio Branco |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS266475 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 |
|---|---|---|
| 170.83.175.0/24 | 88,194 | 2026-07-22 19:11:42 |
| 38.9.114.0/24 | 69,084 | 2026-07-22 19:10:07 |
| 38.56.75.0/24 | 61,133 | 2026-07-22 19:11:42 |
| 38.191.60.0/24 | 51,848 | 2026-07-22 19:11:42 |
| 170.83.172.0/24 | 51,336 | 2026-07-22 19:11:42 |
| 170.83.173.0/24 | 50,179 | 2026-07-22 19:11:42 |
| 170.83.174.0/24 | 49,908 | 2026-07-22 19:11:42 |
| 38.191.62.0/23 | 49,506 | 2026-07-22 19:11:42 |
| 38.191.54.0/23 | 49,433 | 2026-07-22 19:11:42 |
| 38.9.112.0/24 | 48,741 | 2026-07-22 19:11:42 |
| 38.56.73.0/24 | 47,883 | 2026-07-22 19:11:42 |
| 38.9.113.0/24 | 44,230 | 2026-07-22 19:11:42 |
| 38.56.74.0/24 | 43,704 | 2026-07-22 19:11:42 |
| 38.9.115.0/24 | 43,453 | 2026-07-22 19:11:42 |
| 38.56.72.0/24 | 43,102 | 2026-07-22 19:11:42 |
| 38.191.50.0/23 | 42,825 | 2026-07-22 19:11:42 |
| 38.191.48.0/23 | 42,592 | 2026-07-22 19:11:42 |
| 38.191.56.0/23 | 41,049 | 2026-07-22 19:11:42 |
| 38.191.52.0/23 | 40,740 | 2026-07-22 19:11:42 |
| 38.191.58.0/23 | 39,126 | 2026-07-22 19:11:42 |
| 38.191.61.0/24 | 37,296 | 2026-07-22 19:11:42 |
| 38.191.48.0/20 | 37,169 | 2026-07-22 19:10:49 |
| 170.83.172.0/22 | 35,680 | 2026-07-22 19:10:49 |
| 38.191.60.0/23 | 32,299 | 2026-07-22 19:11:42 |
| 38.9.112.0/22 | 16,760 | 2026-07-22 19:10:49 |
| 38.56.72.0/22 | 16,617 | 2026-07-22 19:10:49 |
Frequently Asked Questions
What is AS266475?
AS266475 is an Autonomous System Number assigned to SEM FRONTEIRAS 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 AS266475 announce?
AS266475 announces 7.2K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS266475?
AS266475 is operated by SEM FRONTEIRAS TELECOMUNICACOES LTDA. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS266475 registered in?
AS266475 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
