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Autonomous System

AS766

Entidad Publica Empresarial Red.es

Announced IPs
1,371,648
CIDR prefixes
31
ASN
AS766

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.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Educational/Research
Traffic level 100-200Gbps
Geographic scope Europe
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-REDIRIS

Present at 4 internet exchanges: CATNIX, ESpanix Madrid Lower LAN, ESpanix Madrid Upper LAN, GigaPIX - LAN 1: LAN1

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
193.144.0.0/14 262.1K
11.8%
Entidad Publica Empresarial Red.es ES Andalusia Seville
130.206.0.0/16 65.5K
15.3%
Entidad Publica Empresarial Red.es ES Madrid Madrid
138.4.0.0/16 65.5K
13.5%
Entidad Publica Empresarial Red.es ES Madrid Madrid
138.100.0.0/16 65.5K
21.2%
Entidad Publica Empresarial Red.es ES Madrid Madrid
147.96.0.0/16 65.5K
58.6%
Entidad Publica Empresarial Red.es ES Madrid Villanueva del Pardillo
147.156.0.0/16 65.5K
49.8%
Entidad Publica Empresarial Red.es ES Valencia Paterna
150.128.0.0/16 65.5K
13.8%
Entidad Publica Empresarial Red.es ES Valencia Castelló de la Plana
150.244.0.0/16 65.5K
35.6%
Entidad Publica Empresarial Red.es ES Madrid Madrid
155.210.0.0/16 65.5K
3.0%
Entidad Publica Empresarial Red.es ES Aragon Zaragoza
156.35.0.0/16 65.5K
22.2%
Entidad Publica Empresarial Red.es ES Principality of Asturias Oviedo
158.42.0.0/16 65.5K
65.3%
Entidad Publica Empresarial Red.es ES Valencia Torrent
158.49.0.0/16 65.5K
1.4%
Entidad Publica Empresarial Red.es ES Extremadura Cáceres
158.99.0.0/16 65.5K
0.0%
Entidad Publica Empresarial Red.es ES Principality of Asturias Oviedo
161.67.0.0/16 65.5K
87.3%
Entidad Publica Empresarial Red.es ES Castille-La Mancha Albacete
161.72.0.0/16 65.5K
4.3%
Entidad Publica Empresarial Red.es ES Canary Islands Candelaria
161.111.0.0/16 65.5K
25.7%
Entidad Publica Empresarial Red.es ES Andalusia Córdoba
163.117.0.0/16 65.5K
32.6%
Entidad Publica Empresarial Red.es ES Madrid Getafe
212.128.128.0/17 32.8K
14.5%
Entidad Publica Empresarial Red.es ES Castille and León Salamanca
212.128.0.0/18 16.4K
21.4%
Entidad Publica Empresarial Red.es ES Castille and León Cabanillas
212.128.64.0/20 4.1K
4.1%
Entidad Publica Empresarial Red.es ES Madrid Alcalá de Henares
212.128.80.0/21 2.0K
0.0%
Entidad Publica Empresarial Red.es ES — —
185.205.148.0/22 1.0K
0.0%
Entidad Publica Empresarial Red.es ES — —
192.101.164.0/22 1.0K
33.8%
Entidad Publica Empresarial Red.es ES Madrid Madrid
192.148.204.0/22 1.0K
0.0%
Entidad Publica Empresarial Red.es ES — —
178.255.104.0/23 512
0.0%
Entidad Publica Empresarial Red.es ES Extremadura Villar del Rey
192.148.202.0/23 512
1.2%
Entidad Publica Empresarial Red.es ES — —
192.187.24.0/23 512
5.7%
Entidad Publica Empresarial Red.es ES — —
192.101.161.0/24 256
82.0%
Entidad Publica Empresarial Red.es ES — —
192.101.163.0/24 256
0.0%
Entidad Publica Empresarial Red.es ES — —
192.101.168.0/24 256
0.0%
Entidad Publica Empresarial Red.es ES — —
192.148.201.0/24 256
20.7%
Entidad Publica Empresarial Red.es ES — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS766 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
158.49.0.0/16 28,204 2026-10-27 23:07:22
161.111.0.0/16 24,231 2026-10-27 23:07:12
147.96.0.0/16 18,798 2026-10-27 23:07:12
212.128.64.0/20 18,552 2026-10-27 23:07:12
161.67.0.0/16 18,334 2026-10-27 23:07:12
156.35.0.0/16 18,319 2026-10-27 23:07:12
178.255.104.0/23 17,808 2026-10-27 23:07:12
158.42.0.0/16 17,061 2026-10-27 23:07:21
192.148.201.0/24 16,285 2026-10-27 23:07:12
150.128.0.0/16 15,890 2026-10-27 23:07:12
163.117.0.0/16 15,882 2026-10-27 23:07:12
161.72.0.0/16 15,775 2026-10-27 23:07:12
147.156.0.0/16 15,765 2026-10-27 23:07:12
150.244.0.0/16 15,750 2026-10-27 23:07:12
192.187.24.0/23 15,699 2026-10-27 23:07:12
192.148.204.0/22 15,696 2026-10-27 23:07:12
138.4.0.0/16 15,685 2026-10-27 23:07:12
212.128.80.0/21 15,574 2026-10-27 23:07:12
212.128.128.0/17 15,570 2026-10-27 23:07:12
138.100.0.0/16 15,557 2026-10-27 23:07:12
155.210.0.0/16 15,523 2026-10-27 23:07:12
192.101.164.0/22 15,499 2026-10-27 23:07:12
192.101.163.0/24 15,454 2026-10-27 23:07:12
130.206.0.0/16 15,438 2026-10-27 23:07:12
212.128.0.0/18 15,363 2026-10-27 23:07:12
192.101.168.0/24 15,363 2026-10-27 23:07:12
193.144.0.0/14 15,231 2026-10-27 23:07:12
158.99.0.0/16 15,075 2026-10-27 23:07:12
185.205.148.0/22 15,013 2026-10-27 23:07:12
192.101.161.0/24 14,850 2026-10-27 23:07:12
192.148.202.0/23 3,269 2026-10-26 14:09:17

Frequently Asked Questions

What is AS766?

AS766 is an Autonomous System Number assigned to Entidad Publica Empresarial Red.es. 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 AS766 announce?

AS766 announces 1.37M IPv4 addresses distributed across 31 routed CIDR prefixes. The network is registered in Spain.

Who operates AS766?

AS766 is operated by Entidad Publica Empresarial Red.es. The organization is based in Spain. You can view all IP ranges and related ASNs on the organization page.

What country is AS766 registered in?

AS766 is registered in Spain. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-10-27 23:39:05 UTC
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