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Autonomous System

AS27870

FABRONI CLAUDIO ANTONIO

Announced IPs
3,072
CIDR prefixes
4
ASN
AS27870

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

⚠ 2 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS27870 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)
179.60.221.0/24 AS27870, AS269795 2026-09-14 04:26:33
179.60.222.0/24 AS27870, AS269795 2026-09-13 14:11:12

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
200.110.208.0/21 2.0K
93.0%
CSCOM AR Buenos Aires Quilmes
179.60.220.0/22 1.0K
88.2%
CSCOM AR Buenos Aires Quilmes
179.60.222.0/23 512
0.0%
FABRONI CLAUDIO ANTONIO AR
179.60.220.0/24 256
0.0%
FABRONI CLAUDIO ANTONIO AR

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS27870 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
200.110.215.0/24 106,010 2026-09-14 03:01:16
200.110.214.0/24 105,856 2026-09-14 03:01:16
200.110.212.0/24 105,135 2026-09-14 03:00:39
200.110.213.0/24 105,023 2026-09-14 03:00:39
179.60.223.0/24 90,438 2026-09-14 02:11:33
179.60.222.0/24 90,401 2026-09-14 02:11:33
179.60.220.0/24 89,557 2026-09-14 02:11:33
179.60.221.0/24 87,791 2026-09-14 02:11:33
200.110.208.0/24 68,650 2026-09-14 03:01:01
200.110.210.0/24 64,882 2026-09-14 03:01:16
200.110.211.0/24 63,867 2026-09-14 03:00:39
200.110.209.0/24 63,461 2026-09-14 03:00:50

Frequently Asked Questions

What is AS27870?

AS27870 is an Autonomous System Number assigned to FABRONI CLAUDIO ANTONIO. 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 AS27870 announce?

AS27870 announces 3.1K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Argentina.

Who operates AS27870?

AS27870 is operated by FABRONI CLAUDIO ANTONIO. The organization is based in Argentina. You can view all IP ranges and related ASNs on the organization page.

What country is AS27870 registered in?

AS27870 is registered in Argentina. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-14 04:24:06 UTC
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