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Autonomous System

AS266044

Nicnet S.A.

Announced IPs
4,608
CIDR prefixes
4
ASN
AS266044

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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS266044 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.

PrefixOrigin ASNsLast detected (UTC)
205.164.220.0/24 AS174, AS266044 2026-07-18 21:22:47

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 200-300Gbps
Geographic scope South America
Traffic ratio Balanced
Peering policy Selective
IRR record AS266044:AS-NICNET

Present at 1 internet exchange: IX.br (PTT.br) São Paulo: ATM/MPLA

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
200.15.16.0/21 2.0K
53.8%
Nicnet S.A. US
45.4.32.0/22 1.0K
95.4%
Nicnet S.A. BR São Paulo Cravinhos
45.225.168.0/22 1.0K
93.4%
Nicnet S.A. BR São Paulo Ribeirão Preto
205.164.220.0/23 512
0.0%
Nicnet S.A. US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS266044 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
45.4.32.0/22 25,565 2026-07-20 07:20:48
45.225.168.0/22 25,563 2026-07-20 07:20:48
200.15.20.0/22 25,377 2026-07-20 08:30:46
200.15.16.0/22 25,332 2026-07-20 08:30:46
205.164.220.0/23 8,787 2026-07-13 06:46:32
38.41.196.0/22 8,366 2026-07-13 06:46:18
45.225.169.0/24 5,181 2026-07-17 21:43:15
45.225.171.0/24 3,492 2026-07-17 21:43:15
200.15.20.0/24 1,710 2026-07-17 15:24:32
205.164.220.0/24 408 2026-07-17 21:35:35
45.4.32.0/24 92 2026-07-17 15:24:32
200.15.20.0/23 91 2026-07-17 15:24:32
200.15.18.0/23 91 2026-07-17 15:24:32
200.15.21.0/24 90 2026-07-17 15:24:32
200.15.22.0/23 90 2026-07-17 15:24:32
200.15.18.0/24 90 2026-07-17 15:24:32
200.15.17.0/24 87 2026-07-17 15:24:32
45.4.34.0/23 87 2026-07-17 15:24:32
45.225.170.0/24 87 2026-07-17 15:24:32
45.4.32.0/23 87 2026-07-17 15:24:32
200.15.16.0/23 87 2026-07-17 15:24:32
200.15.16.0/24 87 2026-07-17 15:24:32
45.4.33.0/24 87 2026-07-17 15:24:32
45.4.35.0/24 87 2026-07-17 15:24:32
200.15.19.0/24 87 2026-07-17 15:24:32
45.4.34.0/24 87 2026-07-17 15:24:32
45.225.170.0/23 85 2026-07-17 15:24:32
45.225.168.0/23 85 2026-07-17 15:24:32
45.225.168.0/24 85 2026-07-17 15:24:32

Frequently Asked Questions

What is AS266044?

AS266044 is an Autonomous System Number assigned to Nicnet 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 AS266044 announce?

AS266044 announces 4.6K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Brazil.

Who operates AS266044?

AS266044 is operated by Nicnet S.A.. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.

What country is AS266044 registered in?

AS266044 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-20 08:40:32 UTC
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