AS201318 SuedwestfalenIT-AS Suedwestfalen-IT

SuedwestfalenIT-AS Suedwestfalen-IT · registered in Germany

IPv4 addresses1,2802 prefixes · <0.001% of announced IPv4

Rank in Germany#1,037largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#28,286of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryGermany2,599 ASNs registered there

Open AS201318 in ASN lookup Look up an IP in this network (91.216.128.1) All networks in Germany

IPv4 prefixes

All 2 prefixes, in address order.

91.216.128.0/24
185.41.56.0/22

IPv6 prefixes

All 1 prefix.

2a02:100e:bef8::/48

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AS205496#1039 FISASP FIS-ASP Application Service Providing & IT-Outsourcing GmbH1,280

AS208843#1040 ALPHASTRIKE-RESEARCH Alpha Strike Labs GmbH1,280

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