AS11431
Nucleo de Inf. e Coord. do Ponto BR - NIC.BR
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
- Multiple-origin (MOAS) routing anomaly −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Brazilian Network Information and Coordination Center
The Núcleo de Informação e Coordenação do Ponto BR is a non-profit organization created to implement the decisions and projects designed by the Brazilian Internet Steering Committee. Some of NIC.br's responsibilities include maintaining Registro.br, responsible for the .br domain name, handle internet security and network security in Brazil, handle infrastructure for the Internet in Brazil, and gather and publish statistics about internet usage in Brazil.
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS11431 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) |
|---|---|---|
| 200.219.159.0/24 | AS11431, AS14650 | 2026-07-25 04:38:53 |
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 200.219.159.0/24 | 256 |
6.6%
|
Nucleo de Inf. e Coord. do Ponto BR - NIC.BR | BR | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS11431 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 |
|---|---|---|
| 200.219.159.0/24 | 3,287 | 2026-07-21 19:17:07 |
Frequently Asked Questions
What is AS11431?
AS11431 is an Autonomous System Number assigned to Nucleo de Inf. e Coord. do Ponto BR - NIC.BR. 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 AS11431 announce?
AS11431 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS11431?
AS11431 is operated by Nucleo de Inf. e Coord. do Ponto BR - NIC.BR. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS11431 registered in?
AS11431 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
