AS203652 IBMUK IBM United Kingdom Limited

IBMUK IBM United Kingdom Limited · registered in the United Kingdom

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United Kingdom#1,501largest network in GB by IPv4 space, of 2,074 · <0.01% of GB

Rank worldwide#56,523of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited Kingdom2,261 ASNs registered there

Open AS203652 in ASN lookup Look up an IP in this network (194.61.247.1) All networks in United Kingdom

IPv4 prefixes

All 2 prefixes, in address order.

194.61.247.0/24
194.61.248.0/24

Similar-sized networks in United Kingdom

ASNNameIPv4 addresses

AS203128#1498 NSML NEWCASTLE STRATEGIC SOLUTIONS LIMITED512

AS203184#1499 FNZ-EU FNZ HOLDINGS UK LIMITED512

AS203251#1500 AlchemySystems Alchemy Systems International Limited512

AS203767#1502 CLARITAS-A Claritas Solutions Limited512

AS204322#1503 uk-nyt-lhr1 New York Times Limited512

AS204624#1504 sycurio Sycurio Limited512

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