AS397501 Purdue University

PURDUE-RESNET - Purdue University · registered in the United States

IPv4 addresses19,9688 prefixes · <0.001% of announced IPv4

Rank in United States#2,135largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#6,150of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS397501 in ASN lookup Look up an IP in this network (128.211.64.1) All networks in United States

IPv4 prefixes

All 8 prefixes, in address order.

128.211.64.0/24
128.211.96.0/24
128.211.112.0/24
128.211.120.0/24
128.211.124.0/24
128.211.126.0/24
128.211.184.0/21
128.211.192.0/18

IPv6 prefixes

All 1 prefix.

2607:ac80:400::/40

Other ASNs named Purdue University

3 other networks use the same organisation name; together with AS397501 they announce 287,986 IPv4 addresses.

ASNNameIPv4 addresses

AS17PURDUE - Purdue University US233,458

AS401764PURDUE-NW - Purdue University US24,832

AS397511PURDUE-RESEARCH - Purdue University US9,728

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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