AS205718 ALCORT ALCORT INGENIERIA Y ASESORIA S.L.

ALCORT ALCORT INGENIERIA Y ASESORIA S.L. · registered in Spain

IPv4 addresses9,2169 prefixes · <0.001% of announced IPv4

Rank in Spain#96largest network in ES by IPv4 space, of 926 · 0.03% of ES

Rank worldwide#9,416of 79,396 networks with IPv4

IPv68 x /32 (540,672 x /48)9 prefixes

CountrySpain954 ASNs registered there

Open AS205718 in ASN lookup Look up an IP in this network (77.83.144.1) All networks in Spain

IPv4 prefixes

All 9 prefixes, in address order.

77.83.144.0/22
185.205.112.0/22
185.208.220.0/22
185.210.20.0/22
185.226.168.0/22
185.229.156.0/22
185.229.196.0/22
185.231.116.0/22
185.248.20.0/22

IPv6 prefixes

All 9 prefixes.

2a09:1780::/34
2a09:8ac0::/32
2a09:c5c0::/32
2a09:c740::/32
2a09:dd40::/32
2a09:eb40::/32
2a09:f4c0::/32
2a09:fbc0::/32
2a09:fcc0::/32

Similar-sized networks in Spain

ASNNameIPv4 addresses

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AS60458#95 ASN-XTUDIONET XNET CORE SL9,472

AS197991#97 HISPASAT Hispasat S.A9,216

AS16168#98 GENETSIS GENETSIS PARTNERS SL9,216

AS50564#99 ELECTRONICAMARTINEZ-AS CARTAGO TELECOM S. L.9,216

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