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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 v1.2.0 — 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

AS766 — global IP footprint

Cities where AS766 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

CIDRIPsPTR DensityOrganizationCountryStateCity
193.144.0.0/14 262.1K
9.8%
Entidad Publica Empresarial Red.es ES Murcia Murcia
130.206.0.0/16 65.5K
16.1%
Entidad Publica Empresarial Red.es ES Balearic Islands Ciutadella
138.4.0.0/16 65.5K
11.3%
Entidad Publica Empresarial Red.es ES Madrid Madrid
138.100.0.0/16 65.5K
20.6%
Entidad Publica Empresarial Red.es ES Madrid Madrid
147.96.0.0/16 65.5K
58.7%
Entidad Publica Empresarial Red.es ES Madrid Madrid
147.156.0.0/16 65.5K
46.7%
Entidad Publica Empresarial Red.es ES Valencia Valencia
150.128.0.0/16 65.5K
11.5%
Entidad Publica Empresarial Red.es ES Valencia Castelló de la Plana
150.244.0.0/16 65.5K
33.4%
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
1.2%
Entidad Publica Empresarial Red.es ES Principality of Asturias Oviedo
158.42.0.0/16 65.5K
64.8%
Entidad Publica Empresarial Red.es ES Valencia Valencia
158.49.0.0/16 65.5K
1.3%
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
83.1%
Entidad Publica Empresarial Red.es ES Castille-La Mancha Albacete
161.72.0.0/16 65.5K
4.1%
Entidad Publica Empresarial Red.es ES Canary Islands Candelaria
161.111.0.0/16 65.5K
23.7%
Entidad Publica Empresarial Red.es ES Madrid Madrid
163.117.0.0/16 65.5K
32.7%
Entidad Publica Empresarial Red.es ES Madrid Leganés
212.128.128.0/17 32.8K
16.7%
Entidad Publica Empresarial Red.es ES Castille and León Salamanca
212.128.0.0/18 16.4K
25.4%
Entidad Publica Empresarial Red.es ES Castille and León Cabanillas
212.128.64.0/20 4.1K
4.5%
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
33.3%
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
0.0%
Entidad Publica Empresarial Red.es ES
192.101.161.0/24 256
76.2%
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
19.1%
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 22,627 2026-09-11 00:34:04
161.111.0.0/16 20,456 2026-09-11 00:34:08
156.35.0.0/16 14,318 2026-09-11 00:34:07
178.255.104.0/23 14,059 2026-09-11 00:34:08
147.96.0.0/16 13,469 2026-09-11 00:34:08
158.42.0.0/16 13,303 2026-09-10 22:33:56
212.128.64.0/20 13,189 2026-09-11 00:34:08
161.67.0.0/16 12,775 2026-09-11 00:34:08
192.148.201.0/24 12,507 2026-09-11 00:34:07
163.117.0.0/16 12,119 2026-09-11 00:34:07
147.156.0.0/16 12,109 2026-09-11 00:34:08
150.128.0.0/16 12,083 2026-09-11 00:34:08
150.244.0.0/16 12,031 2026-09-11 00:34:08
138.4.0.0/16 12,029 2026-09-11 00:34:08
161.72.0.0/16 11,987 2026-09-11 00:34:07
192.148.204.0/22 11,930 2026-09-11 00:34:08
138.100.0.0/16 11,916 2026-09-11 00:34:08
192.187.24.0/23 11,909 2026-09-11 00:34:08
192.101.164.0/22 11,856 2026-09-11 00:34:08
212.128.80.0/21 11,854 2026-09-11 00:34:08
155.210.0.0/16 11,845 2026-09-11 00:34:08
192.101.163.0/24 11,793 2026-09-11 00:34:08
130.206.0.0/16 11,790 2026-09-11 00:34:08
212.128.128.0/17 11,774 2026-09-11 00:34:08
192.101.168.0/24 11,758 2026-09-11 00:34:08
212.128.0.0/18 11,668 2026-09-11 00:34:08
193.144.0.0/14 11,540 2026-09-11 00:34:08
158.99.0.0/16 11,389 2026-09-11 00:34:08
185.205.148.0/22 11,304 2026-09-11 00:34:08
192.101.161.0/24 11,182 2026-09-11 00:34:08
192.148.202.0/23 2,442 2026-09-10 13:10:48

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: 2026-09-11 00:39:06 UTC
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