AS398019 Dynu Systems Incorporated

DYNU - Dynu Systems Incorporated · registered in the United States

IPv4 addresses7,1687 prefixes · <0.001% of announced IPv4

Rank in United States#3,575largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#11,501of 79,396 networks with IPv4

IPv62 x /482 prefixes

CountryUnited States18,679 ASNs registered there

Open AS398019 in ASN lookup Look up an IP in this network (72.51.56.1) All networks in United States

IPv4 prefixes

All 7 prefixes, in address order.

72.51.56.0/22
140.235.16.0/22
142.202.188.0/22
155.103.40.0/22
162.216.240.0/22
172.81.60.0/22
207.174.0.0/22

IPv6 prefixes

All 2 prefixes.

2602:ff23::/48
2602:ff23:50::/48

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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