AS number details

AS766

RedIRIS Autonomous System  ·  rediris.es

Spain

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

AS766 – RedIRIS Autonomous System

Field Value
Country Spain
Website rediris.es
Hosted domains 4,051
Number of IPv4 1,371,648
Number of IPv6 79,229,371,440,083,952,222,718,656,512
ASN type Business
Registry ripe
Allocated 23 years ago on Sep 16, 2002
Updated 2 months ago on Sep 16, 2025

IP Ranges

Netblock Company Num of IPs
193.144.0.0/14 Entidad Publica Empresarial Red.es 262,144
130.206.0.0/16 RedIRIS 65,536
138.4.0.0/16 Universidad Politecnica de Madrid 65,536
138.100.0.0/16 Universidad Politecnica de Madrid 65,536
147.96.0.0/16 Universidad Complutense de Madrid 65,536
147.156.0.0/16 Universidad de Valencia 65,536
150.128.0.0/16 Universitat Jaume I 65,536
150.244.0.0/16 Universidad Autonoma de Madrid 65,536
155.210.0.0/16 Universidad de Zaragoza 65,536
156.35.0.0/16 Universidad de Oviedo 65,536
158.42.0.0/16 Universitat Politecnica de Valencia 65,536
158.49.0.0/16 Universidad de Extremadura 65,536
158.99.0.0/16 Spanish National R&D Network 65,536
161.67.0.0/16 Universidad de Castilla - La Mancha 65,536
161.72.0.0/16 Instituto de Astrofisica de Canarias 65,536
161.111.0.0/16 Consejo Superior de Investigaciones 65,536
163.117.0.0/16 Universidad Carlos III de Madrid 65,536
212.128.128.0/17 Universidad de Salamanca 32,768
212.128.0.0/18 Universidad de Alcala de Henares 16,384
212.128.64.0/20 Universidad de Alcala de Henares 4,096
212.128.80.0/21 Entidad Publica Empresarial Red.es 2,048
185.205.148.0/22 Entidad Publica Empresarial Red.es 1,024
192.101.164.0/22 Centro de Investigaciones Energeticas 1,024
192.148.204.0/22 Spanish National R&D Network 1,024
178.255.104.0/23 Junta de Extremadura 512
192.148.202.0/23 Spanish National R&D Network 512
192.187.24.0/23 RedIRIS 512
192.101.161.0/24 CIEMAT 256
192.101.163.0/24 CIEMAT 256
192.101.168.0/24 CIEMAT 256
192.148.201.0/24 Spanish National R&D Network 256

Netblock Company
2001:720::/32 Entidad Publica Empresarial Red.es
2001:678:508::/48 INTA-Instituto Nacional de Tecnica Aeroespacial
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details

Join for free to view whois details › 

                                                ASHandle:       AS766
                                                OrgID:          AS766
                                                ASName:         AS766
                                                ASNumber:       AS766
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
Get this data and more with IPinfo's Whois product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.
IP Whois API & Database

Hosted Domains

There are 4,051 domain names hosted across 1,051 IP addresses on this ASN.

Join for free to explore hosted domains ›
IP Address Domain Domains on this IP
193.146.253.40 ██████████ 538
193.145.200.152 ██████████ 120
161.111.70.134 ███████ 113
193.146.123.83 ██████████ 91
193.146.5.10 ██████████ 82
193.147.147.120 ██████████ 63
161.111.70.135 ██████████ 52
130.206.133.11 █████████ 49
193.146.253.41 ██████████ 48
193.146.123.116 ██████████ 47

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity
Hosted Domains API & Database

Peers

There are 44 peers for this ASN.

Peers Name
AS13030 Init7 (Switzerland) Ltd.
AS13041 Consorci de Serveis Universitaris de Catalunya
AS15488 Universidad del Pais Vasco - Euskal Herriko Unibertsitatea
AS15630 Universidad Nacional de Educacion a Distancia - UNED
AS174 Cogent Communications, LLC
AS197829 Gobierno de Navarra
AS198096 Junta de Andalucia
AS198853 Fundacion ikerbasque
AS198878 Universidad de Navarra
AS200521 Ministerio De Economia, Comercio Y Empresa
AS205580 European Fisheries Control Agency
AS207336 Netassist SL
AS208597 NAVARRA DE SERVICIOS Y TECNOLOGIAS S.A.
AS20965 GEANT Vereniging
AS210158 AGENCIA PARA LA ADMINITRACION DIGITAL DE LA COMUNIDAD DE MADRID
AS2114 ESCUELAS DE ESTUDIOS SUPERIORES ESIC SACERDOTES DEL CORAZON DE JESUS PADRES REPARADORES
AS21320 GEANT Vereniging
AS25285 Boletin Oficial del Estado
AS25354 Entidad Publica Empresarial Red.es
AS288 European Space Agency (ESA)
AS29680 Gamma Operadora de Comunicaciones S.A.
AS31951 NASA Deep Space Network (DSN)
AS3303 Swisscom (Switzerland) Ltd
AS3356 Level 3 Parent, LLC
AS33891 Core-Backbone GmbH
AS34285 Sociedad Andaluza para el Desarrollo de las Telecomunicaciones S.A. Medio Propio
AS34511 Fundacion Integra
AS35280 F5 Networks SARL
AS37468 Angola Cables
AS37721 Virtual Technologies & Solutions
AS43697 Govern de les Illes Balears
AS44593 Fundacion Centro de Supercomputacion de Castilla y Leon
AS49544 i3D.net B.V
AS49851 Aragonesa de Servicios Telematicos
AS51185 MainStreaming SpA
AS5400 British Telecommunications PLC
AS57304 JSC "RetnNet"
AS60171 AFR-IX TELECOM S.A.
AS6424 EDGOO NETWORKS
AS6939 Hurricane Electric LLC
AS8220 COLT Technology Services Group Limited
AS8426 ClaraNET LTD
AS8708 DIGI ROMANIA S.A.
AS9002 RETN Limited
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Upstreams

There are 4 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS21320 GEANT Vereniging
AS3356 Level 3 Parent, LLC
AS6939 Hurricane Electric LLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Downstreams

There are 21 downstreams for this ASN.

Downstreams Name
AS13041 Consorci de Serveis Universitaris de Catalunya
AS15488 Universidad del Pais Vasco - Euskal Herriko Unibertsitatea
AS15630 Universidad Nacional de Educacion a Distancia - UNED
AS197829 Gobierno de Navarra
AS198096 Junta de Andalucia
AS198853 Fundacion ikerbasque
AS198878 Universidad de Navarra
AS200521 Ministerio De Economia, Comercio Y Empresa
AS205580 European Fisheries Control Agency
AS208597 NAVARRA DE SERVICIOS Y TECNOLOGIAS S.A.
AS210158 AGENCIA PARA LA ADMINITRACION DIGITAL DE LA COMUNIDAD DE MADRID
AS2114 ESCUELAS DE ESTUDIOS SUPERIORES ESIC SACERDOTES DEL CORAZON DE JESUS PADRES REPARADORES
AS25285 Boletin Oficial del Estado
AS25354 Entidad Publica Empresarial Red.es
AS288 European Space Agency (ESA)
AS31951 NASA Deep Space Network (DSN)
AS34285 Sociedad Andaluza para el Desarrollo de las Telecomunicaciones S.A. Medio Propio
AS34511 Fundacion Integra
AS43697 Govern de les Illes Balears
AS44593 Fundacion Centro de Supercomputacion de Castilla y Leon
AS49851 Aragonesa de Servicios Telematicos
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

1,445 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
155.210.155.84 AS766 RedIRIS Autonomous System 8.93ms from Barcelona, ES
138.4.174.254 AS766 RedIRIS Autonomous System 0.96ms from Madrid, ES
150.244.56.112 AS766 RedIRIS Autonomous System 1.77ms from Madrid, ES
193.147.53.1 AS766 RedIRIS Autonomous System 3.20ms from Madrid, ES
130.206.201.121 AS766 RedIRIS Autonomous System 0.50ms from Madrid, ES
161.111.84.11 AS766 RedIRIS Autonomous System 0.98ms from Madrid, ES
161.111.46.1 AS766 RedIRIS Autonomous System 2.60ms from Madrid, ES
156.35.50.5 AS766 RedIRIS Autonomous System 6.39ms from Madrid, ES
212.128.64.82 AS766 RedIRIS Autonomous System 1.33ms from Madrid, ES
2001:720:1214:4201::208 AS766 RedIRIS Autonomous System 8.73ms from Madrid, ES
161.72.52.92 AS766 RedIRIS Autonomous System 31.26ms from Madrid, ES
138.4.156.38 AS766 RedIRIS Autonomous System 0.92ms from Madrid, ES
138.100.192.187 AS766 RedIRIS Autonomous System 0.93ms from Madrid, ES
212.128.16.198 AS766 RedIRIS Autonomous System 1.36ms from Madrid, ES
138.4.31.110 AS766 RedIRIS Autonomous System 0.94ms from Madrid, ES
161.111.72.65 AS766 RedIRIS Autonomous System 3.12ms from Madrid, ES
138.4.122.116 AS766 RedIRIS Autonomous System 0.90ms from Madrid, ES
156.35.194.62 AS766 RedIRIS Autonomous System 6.84ms from Madrid, ES
138.4.133.111 AS766 RedIRIS Autonomous System 0.92ms from Madrid, ES
2001:720:1400::253 AS766 RedIRIS Autonomous System 9.47ms from Madrid, ES
193.146.27.130 AS766 RedIRIS Autonomous System 1.20ms from Madrid, ES
193.144.38.153 AS766 RedIRIS Autonomous System 9.72ms from Madrid, ES
150.244.144.179 AS766 RedIRIS Autonomous System 2.00ms from Madrid, ES
161.72.15.17 AS766 RedIRIS Autonomous System 31.74ms from Madrid, ES
138.100.138.252 AS766 RedIRIS Autonomous System 0.92ms from Madrid, ES

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
213.34.255.254 AS15435 DELTA Fiber Nederland B.V. 3.54ms from Amsterdam, NL
20.160.237.14 AS8075 Microsoft Corporation 1.63ms from Amsterdam, NL
54.185.183.94 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
152.203.234.222 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 3.84ms from Bogota, CO
75.68.90.78 AS7922 Comcast Cable Communications, LLC 7.52ms from Boston, US
189.123.62.142 AS28573 Claro NXT Telecomunicacoes Ltda 8.20ms from Brasilia, BR
91.214.192.254 AS24971 MasterDC s.r.o. 0.21ms from Brno, CZ
196.21.195.254 AS2018 TENET (The UNINET Project) 11.51ms from Cape Town, ZA
104.205.255.142 AS852 TELUS Communications Inc. 1.37ms from Edmonton, CA
23.44.121.238 AS16625 Akamai Technologies, Inc. 0.21ms from Frankfurt am Main, DE
88.133.76.14 AS197524 Leonet Group GmbH 5.04ms from Frankfurt am Main, DE
60.189.44.238 AS4134 CHINANET-BACKBONE 10.83ms from Hangzhou, CN
90.212.69.30 AS5607 Sky UK Limited 1.55ms from London, GB
194.26.222.94 AS59895 Binary Racks Limited 0.10ms from London, GB
84.220.182.110 AS8612 Tiscali Italia S.P.A. 16.81ms from Milan, IT
108.58.118.142 AS6128 Cablevision Systems Corp. 3.27ms from New York City, US
113.158.41.174 AS2516 KDDI CORPORATION 9.11ms from Osaka, JP
174.112.137.78 AS812 Rogers Communications Canada Inc. 4.33ms from Ottawa, CA
44.206.89.62 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
162.215.240.94 AS46606 Unified Layer 1.93ms from Salt Lake City, US
189.156.12.254 AS8151 UNINET 16.26ms from Santiago de Queretaro, MX
73.196.152.30 AS7922 Comcast Cable Communications, LLC 6.53ms from Secaucus, US
14.76.230.126 AS4766 Korea Telecom 7.61ms from Seoul, KR
121.145.253.142 AS4766 Korea Telecom 6.76ms from Seoul, KR
218.144.40.254 AS4766 Korea Telecom 1.26ms from Seoul, KR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f4 -m11 156.35.10.134
traceroute to 156.35.10.134 (156.35.10.134): 11 hops max, 52 byte packets
4 [AS6461] 64.125.29.79 21.902 ms
5 [] 80.249.210.137 1.598 ms
6 [AS21320] 83.97.90.18 24.198 ms
7 [AS21320] 83.97.90.19 24.604 ms
8 [AS766] 130.206.245.5 35.333 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS766 at robtex.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs