AS51839 QSKILLS qSkills GmbH & Co. KG

QSKILLS qSkills GmbH & Co. KG · registered in Germany

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Germany#1,614largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#48,392of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryGermany2,599 ASNs registered there

Open AS51839 in ASN lookup Look up an IP in this network (91.221.104.1) All networks in Germany

IPv4 prefixes

All 1 prefix, in address order.

91.221.104.0/23

IPv6 prefixes

All 1 prefix.

2001:67c:3a8::/48

Similar-sized networks in Germany

ASNNameIPv4 addresses

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AS51058#1613 RDNS-AS Sascha Bielski512

AS52088#1615 PORTRIX portrix Systems GmbH512

AS56813#1616 SCHLUNDTECH-AS Schlund Technologies GmbH512

AS58346#1617 KZVNR KASSENZAHNAERZTLICHE VEREINIGUNG NORDRHEIN512

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