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Autonomous System

AS263663

NOBREAK NET LTDA - M.E.

Announced IPs
4,096
CIDR prefixes
1
ASN
AS263663

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.

70/100
Moderate
How this score is built

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

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 5-10Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS263663

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
191.241.0.0/20 4.1K
79.2%
NOBREAK NET LTDA - M.E. BR São Paulo Itapevi

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS263663 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
191.241.9.0/24 56,196 2026-07-23 09:09:19
191.241.12.0/22 55,708 2026-07-23 09:09:18
191.241.4.0/22 55,691 2026-07-23 09:09:19
191.241.0.0/22 55,600 2026-07-23 09:09:19
191.241.10.0/23 55,577 2026-07-23 09:09:19
191.241.8.0/24 31,612 2026-07-23 08:32:50
191.241.4.0/24 329 2026-07-23 06:20:36
191.241.6.0/24 329 2026-07-23 06:20:36
191.241.10.0/24 319 2026-07-23 06:20:36
191.241.15.0/24 319 2026-07-23 06:20:36
191.241.13.0/24 319 2026-07-23 06:20:36
191.241.12.0/24 319 2026-07-23 06:20:36
191.241.5.0/24 319 2026-07-23 06:20:36
191.241.2.0/24 319 2026-07-23 06:20:36
191.241.3.0/24 319 2026-07-23 06:20:36
191.241.11.0/24 319 2026-07-23 06:20:36
191.241.0.0/24 319 2026-07-23 06:20:36
191.241.7.0/24 319 2026-07-23 06:20:36
191.241.14.0/24 319 2026-07-23 06:20:36
191.241.1.0/24 319 2026-07-23 06:20:36

Frequently Asked Questions

What is AS263663?

AS263663 is an Autonomous System Number assigned to NOBREAK NET LTDA - M.E.. 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 AS263663 announce?

AS263663 announces 4.1K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Brazil.

Who operates AS263663?

AS263663 is operated by NOBREAK NET LTDA - M.E.. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.

What country is AS263663 registered in?

AS263663 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 09:10:36 UTC
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