AS51598 AS-NEHLSEN Nehlsen AG

AS-NEHLSEN Nehlsen AG · registered in Germany

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in Germany#1,512largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#46,252of 79,396 networks with IPv4

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

CountryGermany2,599 ASNs registered there

Open AS51598 in ASN lookup Look up an IP in this network (91.209.26.1) All networks in Germany

IPv4 prefixes

All 2 prefixes, in address order.

91.209.26.0/24
193.22.23.0/24

IPv6 prefixes

All 1 prefix.

2a10:d040::/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