AS39551
Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya
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.
- Baseline (neutral) 65
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: CATNIX
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 83.247.128.0/17 | 32.8K |
0.3%
|
Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya | ES | Catalonia | Barcelona |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS39551 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 83.247.173.0/24 | 5,535 | 2026-07-18 12:10:04 |
| 83.247.140.0/24 | 5,532 | 2026-07-18 12:10:04 |
| 83.247.174.0/24 | 5,515 | 2026-07-18 12:10:04 |
| 83.247.141.0/24 | 5,515 | 2026-07-18 12:10:20 |
| 83.247.176.0/24 | 5,457 | 2026-07-18 12:00:14 |
| 83.247.175.0/24 | 5,454 | 2026-07-18 12:10:04 |
| 83.247.142.0/24 | 5,452 | 2026-07-18 12:10:20 |
| 83.247.136.0/24 | 5,440 | 2026-07-18 12:10:20 |
| 83.247.139.0/24 | 5,423 | 2026-07-18 12:00:14 |
| 83.247.177.0/24 | 5,422 | 2026-07-18 12:10:04 |
| 83.247.130.0/24 | 5,418 | 2026-07-18 12:10:04 |
| 83.247.135.0/24 | 5,417 | 2026-07-18 12:10:20 |
| 83.247.208.0/20 | 5,416 | 2026-07-18 12:10:04 |
| 83.247.143.0/24 | 5,415 | 2026-07-18 12:10:20 |
| 83.247.170.0/24 | 5,415 | 2026-07-18 12:00:14 |
| 83.247.157.0/24 | 5,414 | 2026-07-18 12:10:20 |
| 83.247.163.0/24 | 5,413 | 2026-07-18 12:10:04 |
| 83.247.133.0/24 | 5,413 | 2026-07-18 12:10:04 |
| 83.247.161.0/24 | 5,412 | 2026-07-18 12:10:04 |
| 83.247.191.0/24 | 5,412 | 2026-07-18 12:10:04 |
| 83.247.137.0/24 | 5,411 | 2026-07-18 12:10:04 |
| 83.247.168.0/24 | 5,410 | 2026-07-18 12:10:04 |
| 83.247.138.0/24 | 5,407 | 2026-07-18 12:10:04 |
| 83.247.129.0/24 | 5,407 | 2026-07-18 12:10:04 |
| 83.247.149.0/24 | 5,406 | 2026-07-18 12:10:04 |
| 83.247.153.0/24 | 5,404 | 2026-07-18 12:10:07 |
| 83.247.171.0/24 | 5,404 | 2026-07-18 12:10:20 |
| 83.247.164.0/24 | 5,404 | 2026-07-18 12:00:14 |
| 83.247.128.0/24 | 5,403 | 2026-07-18 12:00:14 |
| 83.247.156.0/24 | 5,401 | 2026-07-18 12:10:20 |
| 83.247.169.0/24 | 5,400 | 2026-07-18 12:10:04 |
| 83.247.200.0/21 | 5,400 | 2026-07-18 12:10:04 |
| 83.247.179.0/24 | 5,399 | 2026-07-18 12:10:04 |
| 83.247.165.0/24 | 5,398 | 2026-07-18 12:10:20 |
| 83.247.167.0/24 | 5,396 | 2026-07-18 12:10:04 |
| 83.247.192.0/24 | 5,395 | 2026-07-18 12:10:20 |
| 83.247.181.0/24 | 5,394 | 2026-07-18 12:10:04 |
| 83.247.193.0/24 | 5,392 | 2026-07-18 12:10:04 |
| 83.247.200.0/24 | 5,390 | 2026-07-18 12:10:04 |
| 83.247.145.0/24 | 5,390 | 2026-07-18 12:10:04 |
| 83.247.154.0/24 | 5,389 | 2026-07-18 12:00:14 |
| 83.247.183.0/24 | 5,388 | 2026-07-18 12:10:04 |
| 83.247.132.0/24 | 5,386 | 2026-07-18 12:10:04 |
| 83.247.134.0/24 | 5,386 | 2026-07-18 12:10:04 |
| 83.247.131.0/24 | 5,384 | 2026-07-18 12:10:20 |
| 83.247.155.0/24 | 5,384 | 2026-07-18 12:10:20 |
| 83.247.162.0/24 | 5,384 | 2026-07-18 12:10:04 |
| 83.247.187.0/24 | 5,381 | 2026-07-18 12:10:04 |
| 83.247.172.0/24 | 5,381 | 2026-07-18 12:10:07 |
| 83.247.166.0/24 | 5,381 | 2026-07-18 12:10:20 |
Showing top 50 of 80 announced prefixes by sample volume.
Frequently Asked Questions
What is AS39551?
AS39551 is an Autonomous System Number assigned to Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya. 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 AS39551 announce?
AS39551 announces 32.8K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Spain.
Who operates AS39551?
AS39551 is operated by Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya. The organization is based in Spain. You can view all IP ranges and related ASNs on the organization page.
What country is AS39551 registered in?
AS39551 is registered in Spain. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
