AS210321 OPKM0 Operadors Quilometre Zero S.L.

OPKM0 Operadors Quilometre Zero S.L. · registered in Spain

IPv4 addresses1,0241 prefixes · <0.001% of announced IPv4

Rank in Spain#508largest network in ES by IPv4 space, of 926 · <0.01% of ES

Rank worldwide#30,149of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountrySpain954 ASNs registered there

Open AS210321 in ASN lookup Look up an IP in this network (185.242.248.1) All networks in Spain

IPv4 prefixes

All 1 prefix, in address order.

185.242.248.0/22

IPv6 prefixes

All 1 prefix.

2a0c:f780::/29

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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