Autonomous System

AS39551 Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya

GovernmentActiveSpainRIPE

AS39551 (GENCAT-AS) is a government network operated by Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya in Spain, registered with RIPE. It has 76 IPv4 prefixes with 33,024 addresses, which makes it the 5,259th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses33,024in 76 prefixes
IPv6 prefixes0none
Size rank#5,259of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationCentre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya
AS nameGENCAT-AS
Websitegencat.cat
Country Spain (ES)
Network typeGovernment
RegistryRIPE
Abuse contactcert@ciberseguretat.cat
Registered2006-03-16
Last updated2026-03-30

IPv4 prefixes

76 prefixes · 33,024 addresses
NetworkAddressesFirst – last address
83.247.224.0/198,19283.247.224.0 – 83.247.255.255
83.247.208.0/204,09683.247.208.0 – 83.247.223.255
83.247.200.0/212,04883.247.200.0 – 83.247.207.255
83.247.128.0/2425683.247.128.0 – 83.247.128.255
83.247.129.0/2425683.247.129.0 – 83.247.129.255
83.247.130.0/2425683.247.130.0 – 83.247.130.255
83.247.131.0/2425683.247.131.0 – 83.247.131.255
83.247.132.0/2425683.247.132.0 – 83.247.132.255
83.247.133.0/2425683.247.133.0 – 83.247.133.255
83.247.134.0/2425683.247.134.0 – 83.247.134.255
83.247.135.0/2425683.247.135.0 – 83.247.135.255
83.247.136.0/2425683.247.136.0 – 83.247.136.255
83.247.137.0/2425683.247.137.0 – 83.247.137.255
83.247.138.0/2425683.247.138.0 – 83.247.138.255
83.247.139.0/2425683.247.139.0 – 83.247.139.255
83.247.140.0/2425683.247.140.0 – 83.247.140.255
83.247.141.0/2425683.247.141.0 – 83.247.141.255
83.247.142.0/2425683.247.142.0 – 83.247.142.255
83.247.143.0/2425683.247.143.0 – 83.247.143.255
83.247.144.0/2425683.247.144.0 – 83.247.144.255
83.247.145.0/2425683.247.145.0 – 83.247.145.255
83.247.146.0/2425683.247.146.0 – 83.247.146.255
83.247.147.0/2425683.247.147.0 – 83.247.147.255
83.247.148.0/2425683.247.148.0 – 83.247.148.255
83.247.149.0/2425683.247.149.0 – 83.247.149.255
The 25 largest of 76. The API and the database have all of them.

IPv6 prefixes

No IPv6 prefixes.

Query AS39551 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS39551&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS39551, with or without a key:

curl "https://api.ipapi.is/?q=83.247.224.1"

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AS21193 Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya41,216 IPv4 addresses

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