AS16371 acens_AS acens Technologies, S.L.

acens_AS acens Technologies, S.L. · registered in Spain

IPv4 addresses89,34452 prefixes · 0.003% of announced IPv4

Rank in Spain#18largest network in ES by IPv4 space, of 926 · 0.28% of ES

Rank worldwide#2,020of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountrySpain954 ASNs registered there

Open AS16371 in ASN lookup Look up an IP in this network (45.6.48.1) All networks in Spain

IPv4 prefixes

All 52 prefixes, in address order.

45.6.48.0/22
77.240.112.0/20
79.139.120.0/21
81.46.192.0/19
81.46.224.0/20
81.46.240.0/21
82.194.64.0/19
85.187.56.0/22
86.109.96.0/23
86.109.98.0/23
86.109.100.0/23
86.109.102.0/24
86.109.103.0/24
86.109.104.0/21
86.109.112.0/20
87.238.88.0/21
89.17.192.0/19
89.37.224.0/23
93.90.16.0/20
109.70.32.0/21
176.28.96.0/23
176.28.98.0/23
176.28.100.0/22
176.28.104.0/21
176.28.112.0/21
176.28.120.0/22
176.28.124.0/23
176.28.126.0/24
176.28.127.0/24
185.2.68.0/22
185.10.248.0/22
185.13.60.0/23
185.25.112.0/24
185.78.24.0/22
185.83.132.0/22
185.106.44.0/22
185.118.56.0/22
185.226.225.0/24
193.3.48.0/24
194.116.184.0/23
195.55.104.0/22
213.149.224.0/19
217.116.0.0/23
217.116.2.0/24
217.116.3.0/24
217.116.4.0/22
217.116.8.0/21
217.116.16.0/23
217.116.18.0/24
217.116.19.0/24
217.116.20.0/22
217.116.24.0/21

IPv6 prefixes

All 1 prefix.

2a02:3b8::/32

Similar-sized networks in Spain

ASNNameIPv4 addresses

AS35699#15 ADAMOEU-AS Adamo Telecom Iberia S.A.138,496

AS2134#16 GSVNET-AS Santander Global Technology and Operations, S.L.98,048

AS34977#17 PROCONO-AS PROCONO S.A.96,512

AS12956#19 TELXIUS TELEFONICA GLOBAL SOLUTIONS SL85,248

AS3262#20 SARENET SAREnet, S.A.77,568

AS34511#21 F-INTEGRA-AS Fundacion Integra70,656

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources