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
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — 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 |
|---|---|---|---|---|---|---|
| 200.196.144.0/20 | 4.1K |
2.5%
|
Itau Unibanco S.A. | BR | São Paulo | São Paulo |
| 138.59.160.0/22 | 1.0K |
0.7%
|
Itau Unibanco S.A. | BR | — | — |
| 8.243.33.0/24 | 256 |
0.0%
|
Itau Unibanco S.A. | US | — | — |
| 200.186.244.0/24 | 256 |
0.0%
|
Itau Unibanco S.A. | BR | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS15256 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 |
|---|---|---|
| 138.59.161.0/24 | 45,096 | 2026-08-01 07:04:56 |
| 200.196.145.0/24 | 42,198 | 2026-08-01 07:04:56 |
| 200.196.151.0/24 | 42,015 | 2026-08-01 07:04:56 |
| 200.196.158.0/24 | 41,787 | 2026-08-01 07:04:56 |
| 138.59.160.0/22 | 40,384 | 2026-08-01 06:06:29 |
| 200.196.144.0/20 | 39,904 | 2026-08-01 06:21:45 |
| 8.243.33.0/24 | 15,053 | 2026-08-01 06:47:28 |
| 200.196.148.0/24 | 7,322 | 2026-06-03 04:23:06 |
| 138.59.162.0/24 | 4,730 | 2026-08-01 06:06:29 |
| 200.196.144.0/21 | 1,623 | 2026-08-01 06:21:45 |
| 200.196.152.0/21 | 1,614 | 2026-08-01 06:21:45 |
| 138.59.162.0/23 | 1,542 | 2026-08-01 06:06:29 |
| 138.59.160.0/23 | 1,519 | 2026-08-01 06:06:29 |
Frequently Asked Questions
What is AS15256?
AS15256 is an Autonomous System Number assigned to Itau Unibanco 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 AS15256 announce?
AS15256 announces 5.6K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS15256?
AS15256 is operated by Itau Unibanco S.A.. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS15256 registered in?
AS15256 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
