AS1930 RCCN Fundacao para a Ciencia e a Tecnologia, I.P.

RCCN Fundacao para a Ciencia e a Tecnologia, I.P. · registered in Portugal

IPv4 addresses359,93673 prefixes · 0.011% of announced IPv4

Rank in Portugal#4largest network in PT by IPv4 space, of 127 · 5.48% of PT

Rank worldwide#705of 79,396 networks with IPv4

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

CountryPortugal138 ASNs registered there

Open AS1930 in ASN lookup Look up an IP in this network (139.83.0.1) All networks in Portugal

IPv4 prefixes

All 73 prefixes, in address order.

139.83.0.0/16
158.162.0.0/19
158.162.64.0/19
158.162.96.0/20
158.162.112.0/21
158.162.128.0/18
185.175.184.0/22
192.26.231.0/24
192.26.236.0/24
192.26.239.0/24
192.67.76.0/24
192.68.186.0/24
192.68.209.0/24
192.68.216.0/24
192.68.221.0/24
192.68.224.0/24
192.80.20.0/24
192.82.127.0/24
192.82.214.0/24
192.84.13.0/24
192.84.15.0/24
192.86.138.0/24
192.88.17.0/24
192.88.250.0/23
192.88.252.0/23
192.88.254.0/24
192.92.133.0/24
192.92.135.0/24
192.92.142.0/24
192.92.144.0/24
192.92.146.0/23
192.92.148.0/23
192.92.152.0/23
192.94.24.0/24
192.104.48.0/24
192.107.122.0/24
192.122.238.0/23
192.122.240.0/23
192.122.242.0/24
192.132.53.0/24
192.132.55.0/24
192.133.108.0/24
192.135.187.0/24
192.135.219.0/24
192.136.52.0/24
192.138.86.0/24
192.138.204.0/24
192.147.155.0/24
192.153.13.0/24
192.190.174.0/24
192.195.195.0/24
192.207.196.0/24
193.136.0.0/15
193.236.0.0/20
193.236.97.0/24
193.236.98.0/23
193.236.102.0/23
193.236.104.0/21
193.236.112.0/21
193.236.124.0/22
193.236.154.0/23
193.236.157.0/24
193.236.158.0/23
193.236.160.0/20
193.236.178.0/23
193.236.180.0/22
193.236.184.0/21
193.236.192.0/18
194.117.0.0/20
194.117.16.0/21
194.117.40.0/21
194.117.48.0/23
194.210.0.0/16

IPv6 prefixes

All 1 prefix.

2001:690::/32

Similar-sized networks in Portugal

ASNNameIPv4 addresses

AS3243#1 MEO-RESIDENCIAL MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.1,836,032

AS2860#2 NOS_COMUNICACOES NOS COMUNICACOES, S.A.1,771,520

AS12353#3 VODAFONE-PT Vodafone Portugal - Communicacoes Pessoais S.A.1,207,040

AS42863#5 MEO-MOVEL MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.254,976

AS1897#6 EUNETPT NOS COMUNICACOES, S.A.204,032

AS15525#7 MEO-EMPRESAS MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.155,136

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