AS31438 SWMR-AS Stadtwerke Marburg GmbH

SWMR-AS Stadtwerke Marburg GmbH · registered in Germany

IPv4 addresses3,0722 prefixes · <0.001% of announced IPv4

Rank in Germany#690largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#17,974of 79,396 networks with IPv4

IPv64 x /32 (262,144 x /48)1 prefixes

CountryGermany2,599 ASNs registered there

Open AS31438 in ASN lookup Look up an IP in this network (83.137.64.1) All networks in Germany

IPv4 prefixes

All 2 prefixes, in address order.

83.137.64.0/21
212.89.196.0/22

IPv6 prefixes

All 1 prefix.

2a0d:5f00::/30

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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