All ASNs

Autonomous System details for AS39551

AS39551

Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya • gencat.cat

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

AS Name

GENCAT-AS

Country

Spain (ES)

Website

gencat.cat

Number of IPv4

33,024

Number of IPv6

ASN type

ISP

Status

Allocated

Registry

RIPE

Allocated

March 16, 2006

Last updated

March 30, 2026

IP Ranges

76 IPv4 prefixes

Prefix	Company	Number of IPs
83.247.128.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.129.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.130.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.131.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.132.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.133.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.134.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.135.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.136.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.137.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.138.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.139.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.140.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.141.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.142.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.143.0/24	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	256
83.247.144.0/24	CatNix acces	256
83.247.145.0/24	New site web services	256
83.247.146.0/24	Centre de Seguretat de la Informaci* de Catalunya	256
83.247.147.0/24	New site web services - GEN1	256
83.247.148.0/24	New site web services - GEN1	256
83.247.149.0/24	New site web services - GEN1	256
83.247.150.0/24	New site web services - GEN1	256
83.247.151.0/24	New site web services - GEN1	256
83.247.152.0/24	New site web services - GEN1	256
83.247.153.0/24	New site web services - GEN1	256
83.247.154.0/24	New site web services - GEN1	256
83.247.155.0/24	New site web services - GEN1	256
83.247.156.0/24	New site web services - GEN1	256
83.247.157.0/24	New site web services - GEN1	256
83.247.158.0/24	New site web services - GEN1	256
83.247.159.0/24	New site web services - GEN1	256
83.247.160.0/24	New site web services - GEN2	256
83.247.161.0/24	New site web services - GEN2	256
83.247.162.0/24	New site web services - GEN2	256
83.247.163.0/24	New site web services - GEN2	256
83.247.164.0/24	New site web services - GEN2	256
83.247.165.0/24	New site web services - GEN2	256
83.247.166.0/24	New site web services - GEN2	256
83.247.167.0/24	New site web services - GEN2	256
83.247.168.0/24	New site web services - GEN2	256
83.247.169.0/24	User NAV	256
83.247.170.0/24	ES GENCAT 20200914	256
83.247.171.0/24	ES GENCAT 20200914	256
83.247.172.0/24	User 172	256
83.247.173.0/24	User 173	256
83.247.174.0/24	User 174	256
83.247.175.0/24	User 175	256
83.247.176.0/24	User 176	256
83.247.177.0/24	User 177	256
83.247.178.0/24	User 178	256
83.247.179.0/24	User 179	256
83.247.180.0/24	User 180	256
83.247.181.0/24	User 181	256
83.247.182.0/24	User 182	256
83.247.183.0/24	User 183	256
83.247.184.0/24	User 184	256
83.247.185.0/24	User 185	256
83.247.186.0/24	User 186	256
83.247.187.0/24	User 187	256
83.247.188.0/24	User 188	256
83.247.189.0/24	User 189	256
83.247.190.0/24	User 190	256
83.247.191.0/24	User 191	256
83.247.192.0/24	User 192	256
83.247.193.0/24	User 193	256
83.247.194.0/24	User 194	256
83.247.195.0/24	User 195	256
83.247.196.0/24	User 196	256
83.247.197.0/24	User 197	256
83.247.198.0/24	User 198	256
83.247.199.0/24	User 199	256
83.247.200.0/21	User 200	2,048
83.247.200.0/24	User 200	256
83.247.208.0/20	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	4,096
83.247.224.0/19	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya	8,192

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS39551

2 peers

AS8220 AS29680

AS39551 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS39551

2 upstreams

AS3352 AS12479

AS39551 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS39551 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS39551

3 downstreams

AS16153 AS21193 AS25412

AS39551 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.