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Autonomous System

AS267121

ATPlus Telecom

Announced IPs
4,608
CIDR prefixes
11
ASN
AS267121

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 v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 50-100Gbps
Geographic scope South America
Traffic ratio Balanced
Peering policy Open
IRR record AS-ATPLUS-ALL

Present at 3 internet exchanges: IX.br (PTT.br) Florianópolis: ATM/MPLA, IX.br (PTT.br) Curitiba: ATM/MPLA, IX.br (PTT.br) São Paulo: ATM/MPLA

AS267121 — global IP footprint

Cities where AS267121 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS267121 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
104.234.90.0/24 349,678 2026-10-15 11:59:53
104.234.84.0/24 337,101 2026-10-15 11:59:53
151.247.211.0/24 259,249 2026-10-15 11:20:03
104.234.41.0/24 217,684 2026-10-15 11:41:58
50.114.180.0/24 176,402 2026-09-07 15:24:18
187.84.150.0/24 152,921 2026-10-15 11:42:25
187.84.148.0/24 148,791 2026-10-15 11:42:25
187.84.149.0/24 148,631 2026-10-15 11:42:25
187.84.151.0/24 148,624 2026-10-15 11:42:25
45.229.105.0/24 147,770 2026-10-15 11:41:55
45.229.107.0/24 147,600 2026-10-15 11:41:55
45.229.106.0/24 147,463 2026-10-15 11:41:55
45.229.104.0/22 146,400 2026-10-15 11:41:55
45.229.106.0/23 146,211 2026-10-15 11:41:55
45.229.104.0/23 146,085 2026-10-15 11:41:55
187.84.148.0/22 143,812 2026-10-15 11:42:25
187.84.148.0/23 143,354 2026-10-15 11:42:25
187.84.150.0/23 143,253 2026-10-15 11:42:25
45.229.104.0/24 141,258 2026-10-15 11:41:55
104.234.1.0/24 130,119 2026-10-15 11:59:53
104.234.16.0/24 129,193 2026-10-15 11:59:53
177.10.89.0/24 117,129 2026-10-15 11:32:57
151.247.210.0/24 103,479 2026-10-15 11:41:55
45.147.226.0/24 90,220 2026-10-15 11:41:58
50.114.61.0/24 63,877 2026-10-15 11:49:06
151.247.210.0/23 4,905 2026-06-24 17:59:37

Frequently Asked Questions

What is AS267121?

AS267121 is an Autonomous System Number assigned to ATPlus 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 AS267121 announce?

AS267121 announces 4.6K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in Brazil.

Who operates AS267121?

AS267121 is operated by ATPlus Telecom. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.

What country is AS267121 registered in?

AS267121 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-10-15 11:54:05 UTC
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