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Autonomous System

AS51678

Ayesa Ibermatica, Sau

Announced IPs
6,144
CIDR prefixes
6
ASN
AS51678

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
5.2.24.0/21 2.0K
91.6%
Ayesa Ibermatica, Sau ES
46.17.136.0/21 2.0K
99.1%
Ayesa Ibermatica, Sau ES
134.255.184.0/21 2.0K
98.4%
Ayesa Ibermatica, Sau ES
5.2.28.0/22 1.0K
92.6%
Ayesa Ibermatica, Sau ES
5.2.26.0/23 512
91.2%
Ayesa Ibermatica, Sau ES
5.2.24.0/24 256
91.8%
Ayesa Ibermatica, Sau ES

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS51678 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
5.2.24.0/21 7,765 2026-08-01 03:23:36
5.2.31.0/24 7,382 2026-08-01 03:23:37
5.2.27.0/24 7,374 2026-08-01 03:23:37
5.2.30.0/24 7,372 2026-08-01 03:23:37
5.2.26.0/24 7,364 2026-08-01 03:23:37
5.2.29.0/24 7,355 2026-08-01 03:23:37
5.2.28.0/24 7,352 2026-08-01 03:23:37
5.2.24.0/24 7,349 2026-08-01 03:23:37
46.17.136.0/21 7,256 2026-08-01 03:50:54
134.255.184.0/21 7,213 2026-08-01 03:24:43
46.17.137.0/24 6,372 2026-08-01 03:50:54
46.17.141.0/24 6,351 2026-08-01 03:50:54
46.17.143.0/24 6,037 2026-08-01 03:50:54
46.17.139.0/24 6,031 2026-08-01 03:50:54
46.17.140.0/24 6,014 2026-08-01 03:50:54
46.17.138.0/24 6,011 2026-08-01 03:50:54
46.17.142.0/24 5,989 2026-08-01 03:50:54
46.17.136.0/24 5,987 2026-08-01 03:50:54
134.255.189.0/24 5,922 2026-08-01 03:24:59
134.255.191.0/24 5,920 2026-08-01 03:24:59
134.255.186.0/24 5,913 2026-08-01 03:24:59
134.255.185.0/24 5,907 2026-08-01 03:24:59
134.255.187.0/24 5,898 2026-08-01 03:24:59
134.255.188.0/24 5,893 2026-08-01 03:24:59
134.255.184.0/24 5,881 2026-08-01 03:24:59
134.255.190.0/24 5,873 2026-08-01 03:24:59

Frequently Asked Questions

What is AS51678?

AS51678 is an Autonomous System Number assigned to Ayesa Ibermatica, Sau. 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 AS51678 announce?

AS51678 announces 6.1K IPv4 addresses distributed across 6 routed CIDR prefixes. The network is registered in Spain.

Who operates AS51678?

AS51678 is operated by Ayesa Ibermatica, Sau. The organization is based in Spain. You can view all IP ranges and related ASNs on the organization page.

What country is AS51678 registered in?

AS51678 is registered in Spain. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-08-01 03:55:36 UTC
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