AS204188 AS-ITSG ITSG Informationstechnische Servicestelle der Gesetzlichen Krankenversicherung GmbH

AS-ITSG ITSG Informationstechnische Servicestelle der Gesetzlichen Krankenversicherung GmbH · registered in Germany

IPv4 addresses2,3043 prefixes · <0.001% of announced IPv4

Rank in Germany#754largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#20,453of 79,396 networks with IPv4

IPv68 x /32 (524,289 x /48)2 prefixes

CountryGermany2,599 ASNs registered there

Open AS204188 in ASN lookup Look up an IP in this network (45.157.220.1) All networks in Germany

IPv4 prefixes

All 3 prefixes, in address order.

45.157.220.0/22
91.198.86.0/24
185.251.176.0/22

IPv6 prefixes

All 2 prefixes.

2001:678:180::/48
2a0c:14c0::/29

Similar-sized networks in Germany

ASNNameIPv4 addresses

AS204672#751 SW-Rhede stadtwerker Versorgungs GmbH2,560

AS210298#752 knet-empera K-net Telekommunikation GmbH2,560

AS215876#753 v2_oelsnitz-media Stadtwerke OELSNITZ/V. GmbH2,304

AS20740#755 MESSEFFM Messe Frankfurt GmbH2,304

AS44283#756 TUI-AS TUI InfoTec GmbH2,304

AS50332#757 SQUILD-AS SQUILD GmbH2,304

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