AS42541 FIBERBY Fiberby ApS

FIBERBY Fiberby ApS · registered in Denmark

IPv4 addresses11,0085 prefixes · <0.001% of announced IPv4

Rank in Denmark#40largest network in DK by IPv4 space, of 327 · 0.10% of DK

Rank worldwide#8,635of 79,396 networks with IPv4

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

CountryDenmark344 ASNs registered there

Open AS42541 in ASN lookup Look up an IP in this network (89.23.224.1) All networks in Denmark

IPv4 prefixes

All 5 prefixes, in address order.

89.23.224.0/19
185.10.220.0/22
193.104.135.0/24
193.106.164.0/22
194.62.216.0/23

IPv6 prefixes

All 1 prefix.

2a03:5440::/29

Similar-sized networks in Denmark

ASNNameIPv4 addresses

AS34482#37 Nuuday TDC Brands A/S12,288

AS204151#38 KVIKNET-DK EWII Bredbaand A/S11,520

AS24800#39 BORNFIBER BornFiber Service Provider ApS11,264

AS9120#41 KEEPIT-DK-CPH Keepit A/S10,496

AS42697#42 NETIC-AS Netic A/S9,984

AS207355#43 Ka-net Ka-net9,728

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