AS57948 COBALT Cobalt Group BV

COBALT Cobalt Group BV · registered in Belgium

IPv4 addresses2,5605 prefixes · <0.001% of announced IPv4

Rank in Belgium#69largest network in BE by IPv4 space, of 273 · 0.02% of BE

Rank worldwide#19,643of 79,396 networks with IPv4

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

CountryBelgium294 ASNs registered there

Open AS57948 in ASN lookup Look up an IP in this network (2.57.40.1) All networks in Belgium

IPv4 prefixes

All 5 prefixes, in address order.

2.57.40.0/23
2.57.42.0/24
91.236.244.0/23
185.70.44.0/24
195.253.208.0/22

IPv6 prefixes

All 1 prefix.

2a05:2600::/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