AS203761 ACS-HARTMANN Hartana GmbH trading as ACS Hartmann GmbH & Co. KG

ACS-HARTMANN Hartana GmbH trading as ACS Hartmann GmbH & Co. KG · registered in Germany

IPv4 addresses32,7681 prefixes · 0.001% of announced IPv4

Rank in Germany#173largest network in DE by IPv4 space, of 2,315 · 0.03% of DE

Rank worldwide#4,852of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryGermany2,599 ASNs registered there

Open AS203761 in ASN lookup Look up an IP in this network (134.97.128.1) All networks in Germany

IPv4 prefixes

All 1 prefix, in address order.

134.97.128.0/17

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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