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 v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 5 internet exchanges: IX.br (PTT.br) São Paulo: ATM/MPLA, IX.br (PTT.br) Rio de Janeiro: ATM/MPLA, IX.br (PTT.br) Vitória: ATM/MPLA, IX.br (PTT.br) Belo Horizonte: ATM/MPLA, IX.br (PTT.br) Brasília: ATM/MPLA
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 138.36.68.0/22 | 1.0K |
0.0%
|
CHECK-UP NET TELECOM | BR | — | — |
| 143.137.0.0/22 | 1.0K |
0.0%
|
CHECK-UP NET TELECOM | BR | Minas Gerais | Carangola |
| 170.246.232.0/22 | 1.0K |
0.0%
|
CHECK-UP NET TELECOM | BR | Minas Gerais | Carangola |
| 200.225.140.0/22 | 1.0K |
0.0%
|
CHECK-UP NET TELECOM | BR | Minas Gerais | Caparaó |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS61797 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 |
|---|---|---|
| 200.225.142.0/23 | 97,710 | 2026-10-23 01:35:10 |
| 138.36.68.0/23 | 97,502 | 2026-10-23 01:35:10 |
| 170.246.232.0/22 | 97,493 | 2026-10-23 01:35:10 |
| 138.36.70.0/23 | 97,467 | 2026-10-23 01:35:10 |
| 200.225.140.0/23 | 97,334 | 2026-10-23 01:35:10 |
| 143.137.0.0/23 | 97,275 | 2026-10-23 01:35:10 |
| 138.36.68.0/22 | 96,899 | 2026-10-23 01:35:10 |
| 143.137.0.0/22 | 69,930 | 2026-10-23 01:35:10 |
| 200.225.140.0/22 | 69,854 | 2026-10-23 01:35:10 |
| 170.246.232.0/24 | 62,828 | 2026-10-23 01:35:10 |
| 170.246.234.0/23 | 39,773 | 2026-10-23 00:15:59 |
| 170.246.232.0/23 | 39,685 | 2026-10-23 00:16:07 |
| 170.246.233.0/24 | 4,836 | 2026-10-22 19:42:28 |
| 200.225.141.0/24 | 4,820 | 2026-10-22 19:42:28 |
| 200.225.140.0/24 | 4,781 | 2026-10-22 19:42:28 |
| 170.246.234.0/24 | 4,764 | 2026-10-22 19:42:28 |
| 170.246.235.0/24 | 4,698 | 2026-10-22 19:42:30 |
| 200.225.143.0/24 | 4,666 | 2026-10-22 19:42:28 |
| 200.225.142.0/24 | 4,658 | 2026-10-22 19:42:28 |
| 143.137.3.0/24 | 4,619 | 2026-10-22 19:42:29 |
| 143.137.1.0/24 | 4,605 | 2026-10-22 19:42:29 |
| 143.137.0.0/24 | 4,600 | 2026-10-22 19:42:29 |
| 138.36.71.0/24 | 4,112 | 2026-10-22 19:42:29 |
| 138.36.69.0/24 | 4,110 | 2026-10-22 19:42:29 |
| 138.36.68.0/24 | 4,110 | 2026-10-22 19:42:29 |
| 138.36.70.0/24 | 4,092 | 2026-10-22 19:42:29 |
Frequently Asked Questions
What is AS61797?
AS61797 is an Autonomous System Number assigned to CHECK-UP NET TELECOM. 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 AS61797 announce?
AS61797 announces 4.1K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS61797?
AS61797 is operated by CHECK-UP NET TELECOM. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS61797 registered in?
AS61797 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
