AS25538 IN-ULM Internet Ulm/Neu-Ulm e.V.

IN-ULM Internet Ulm/Neu-Ulm e.V. · registered in Germany

IPv4 addresses5,3763 prefixes · <0.001% of announced IPv4

Rank in Germany#502largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#13,056of 79,396 networks with IPv4

IPv665,535 x /4816 prefixes

CountryGermany2,599 ASNs registered there

Open AS25538 in ASN lookup Look up an IP in this network (91.210.72.1) All networks in Germany

IPv4 prefixes

All 3 prefixes, in address order.

91.210.72.0/22
193.110.90.0/24
217.10.0.0/20

IPv6 prefixes

All 16 prefixes.

2001:1410::/36
2001:1410:1001::/48
2001:1410:1002::/47
2001:1410:1004::/46
2001:1410:1008::/45
2001:1410:1010::/44
2001:1410:1020::/43
2001:1410:1040::/42
2001:1410:1080::/41
2001:1410:1100::/40
2001:1410:1200::/39
2001:1410:1400::/38
2001:1410:1800::/37
2001:1410:2000::/35
2001:1410:4000::/34
2001:1410:8000::/33

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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