AS22339 University of Dubuque

UDBQ-1 - University of Dubuque · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#12,964largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#60,216of 79,396 networks with IPv4

IPv6256 x /488 prefixes

CountryUnited States18,679 ASNs registered there

Open AS22339 in ASN lookup Look up an IP in this network (23.135.164.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

23.135.164.0/24

IPv6 prefixes

All 8 prefixes.

2602:f6ca::/47
2602:f6ca:2::/47
2602:f6ca:4::/46
2602:f6ca:8::/45
2602:f6ca:10::/44
2602:f6ca:20::/43
2602:f6ca:40::/42
2602:f6ca:80::/41

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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