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Autonomous System

AS263791

REFSA TELECOMUNICACIONES

Announced IPs
1,024
CIDR prefixes
1
ASN
AS263791

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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Traffic level 100-1000Mbps
Geographic scope Asia Pacific

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
138.121.112.0/22 1.0K
0.4%
REFSA TELECOMUNICACIONES AR Formosa Formosa

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS263791 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
138.121.115.0/24 23,216 2026-07-30 00:45:27
138.121.113.0/24 19,295 2026-07-30 00:45:27
138.121.114.0/24 19,272 2026-07-30 00:45:27
138.121.112.0/24 18,864 2026-07-30 00:45:27

Frequently Asked Questions

What is AS263791?

AS263791 is an Autonomous System Number assigned to REFSA TELECOMUNICACIONES. 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 AS263791 announce?

AS263791 announces 1.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Argentina.

Who operates AS263791?

AS263791 is operated by REFSA TELECOMUNICACIONES. The organization is based in Argentina. You can view all IP ranges and related ASNs on the organization page.

What country is AS263791 registered in?

AS263791 is registered in Argentina. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-30 01:40:31 UTC
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