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AS39551 GENCAT-AS Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya

Spain · Autonomous System

IPv4 announced

33K

0.00 × /8

IPv6 announced

/48 blocks

Prefixes

routed

Country

Spain

Topology (CAIDA AS Rank)

The network's position in the inter-domain routing hierarchy: its customer cone, connectivity, and transit role.

Customer cone

ASes reachable as customers

AS rank

#5,312

by customer-cone size (1 = largest)

Connectivity

2 providers · 2 peers · 3 customers

Transit role

access

CAIDA transit classification

Upstream providers

Settlement-free peers

Downstream customers

Peering & transit neighbours (CAIDA)

Inferred AS-level relationships: 2 upstream providers, 2 peers and 3 downstream customers. The graph shows the largest few of each; the lists link through.

Upstream providers2

give this network transit

Settlement-free peers2

exchange traffic directly

Downstream customers3

buy transit from it

Relationships are inferred from BGP by CAIDA and refreshed monthly. Transit links are well captured; some private and IXP peering is under-observed, so peer counts are a lower bound.

Routing hygiene & RPKI

How well this network secures and documents its BGP announcements — RPKI origin validation, IRR registration, and an overall hygiene score.

Hygiene score

0–100 · RPKI × IRR × consistency

RPKI coverage

0 of 33K routed addrs valid

RPKI invalid

no invalid prefixes

IRR registered

34%

26 of 76 prefixes documented

Announcement composition76 routed prefixes

IPv6 deployment

Measured share of this network's users reaching the Internet over IPv6 (APNIC end-user measurement, Spain).

IPv6 capable

0.1%

users that can reach IPv6-only content

IPv6 preferred

0.1%

users that use IPv6 when both are offered

Capable0.1%

Has working IPv6 connectivity, even if it isn't always chosen.

Preferred0.1%

IPv6 wins when a destination is dual-stacked — the real-world usage rate.

Announced prefixes

Currently announced prefixes, live from RIPEstat.

76 prefixes currently seen by RIPEstat.

83.247.153.0/2483.247.170.0/2483.247.184.0/2483.247.197.0/2483.247.178.0/2483.247.155.0/2483.247.191.0/2483.247.168.0/2483.247.185.0/2483.247.139.0/2483.247.190.0/2483.247.151.0/2483.247.167.0/2483.247.128.0/2483.247.156.0/2483.247.162.0/2483.247.141.0/2483.247.149.0/2483.247.172.0/2483.247.134.0/2483.247.163.0/2483.247.142.0/2483.247.187.0/2483.247.154.0/2483.247.138.0/2483.247.161.0/2483.247.182.0/2483.247.159.0/2483.247.176.0/2483.247.164.0/2483.247.169.0/2483.247.136.0/2483.247.160.0/2483.247.200.0/2183.247.140.0/2483.247.137.0/2483.247.198.0/2483.247.150.0/2483.247.224.0/1983.247.146.0/2483.247.152.0/2483.247.135.0/2483.247.173.0/2483.247.143.0/2483.247.196.0/2483.247.129.0/2483.247.171.0/2483.247.148.0/2483.247.199.0/2483.247.180.0/2483.247.157.0/2483.247.147.0/2483.247.145.0/2483.247.188.0/2483.247.166.0/2483.247.179.0/2483.247.208.0/2083.247.189.0/2483.247.193.0/2483.247.174.0/2483.247.186.0/2483.247.192.0/2483.247.175.0/2483.247.200.0/2483.247.165.0/2483.247.130.0/2483.247.158.0/2483.247.144.0/2483.247.177.0/2483.247.181.0/2483.247.183.0/2483.247.194.0/2483.247.131.0/2483.247.133.0/2483.247.195.0/2483.247.132.0/24

Fetching announced prefixes from RIPEstat…